The DoubleHelix A Personal Account of the Discovery of the Structure of DNA is an autobiographical account of the discovery of the doublehelix structure of DNA written by James D. Watson and published in 1968. It was and remains a controversial account. Though it was originally slated to be published by Harvard University Press , Watson s home university dropped the arrangement after protestations from Francis Crick and Maurice Wilkins , ref name Feldman co discoverers of the structure of DNA, and it was published privately. It has been criticized as being excessively sexist towards Rosalind Franklin , another participant in the discovery, who was deceased by the time Watson s book was written. In 1998, the Modern Library placed The DoubleHelix at number 7 on its list of the 20th century s best works of non fiction. The intimate first person account of scientific discovery was unusual for its time. The book has been hailed as a highly personal view of scientific work, with its author seemingly caring only about the glory of priority and willing to appropriate data from others surreptitiously in order to obtain it. A 1980 Norton Critical Edition of The DoubleHelix edited by Gunther ... . The book was made into a film dramatization as The Race for the DoubleHelix in 1987. Other criticism ... References James D. Watson, The DoubleHelix A Personal Account of the Discovery of the Structure of DNA 1968 , Atheneum, 1980, ISBN 0 689 70602 2, oclc 6197022 James D. Watson, The DoubleHelix ... 8 Maurice Wilkins Wilkins, Maurice , The Third Man of the DoubleHelix The Autobiography 2003 , Oxford ... of the first edition of The DoubleHelix DEFAULTSORT DoubleHelix, The Category 1968 books Category ... it La doppia elica pt The DoubleHelix tr kili Sarmal DNA Yap z m n n yk s zh DNA ... to provide a different perspective on the role Franklin played in Watson and Crick s discovery of the doublehelix structure of DNA. See King s College London DNA Controversy In the book s preface ... more details
In geometry, a doublehelix plural helices is a pair of congruent geometrical helices with the same axis, differing by a translation along the axis. The term is most often used in reference to the nucleic acid doublehelix , the dominant structure of nucleic acids such as DNA and RNA. Doublehelix may also refer to Science and engineering Doublehelix, the structure of DNA DoubleHelix Nebula , a gaseous nebula in the Milky Way Galaxy Double helical gear , also known as a herringbone gear The Helix Bridge , a bridge shaped as the doublehelix located at the Marina Bay, Singapore Marina Bay , Singapore . DoubleHelix methodology , a process for systems development. Gaming and animation DoubleHelix Games , a video game developer Soldier of Fortune II DoubleHelix , a video game DoubleHelix, an alien race in the Wing Commander franchise Wing Commander series Doublehelix, a character in the animated film Asterix and the Vikings DoubleHelix, an animation group Literature The DoubleHelix , a book about the discovery of the double helical structure of DNA DoubleHelix novel DoubleHelix , a 2004 novel by Nancy Werlin Star Trek DoubleHelix , a six book miniseries and a spinoff of the List of Star Trek novels The Next Generation Star Trek The Next Generation book series DoubleHelixDouble or Nothing , a book in the aforementioned series Other uses DoubleHelix The Outer Limits DoubleHelix , an episode of the TV series The Outer Limits DoubleHelix band , a hard rock band DoubleHelix Corporation , a St. Louis, Missouri organization that owns several television and radio channels disambig ... more details
Infobox Company company name DoubleHelix Games company logo Image Double helix.jpg caption company slogan company type Privately held company Private foundation 2007 in video gaming 2007 location Irvine, California Irvine , California , United States industry Video game industry Computer and video games revenue num employees 100 homepage http www.doublehelixgames.com DoubleHelix Games DoubleHelix Games is an United States American video game developer based in Irvine, California Irvine , California , founded in 2007 through two mergers of Foundation 9 studios, The Collective, Inc. The Collective and Shiny Entertainment . The studio s first release was Silent Hill Homecoming for the PlayStation 3 and the Xbox 360. History DoubleHelix Games was formed in 2007 via a merger between two Foundation 9 studios, The Collective and Shiny Entertainment. DoubleHelix Games cites on their website that the combined development experience totals 20 years ref name DoubleHelixInfo http www.doublehelixgames.com studio.html DoubleHelix Games Studio Information Retrieved on June 23, 2008. ref and that it is one of the largest and most experienced game developers in the world. ref name DoubleHelixInfo DoubleHelix Games also states on their website that they are a developer for all the major home consoles and that they have worked on numerous notable IPs such as Star Wars , The Matrix franchise The Matrix , Indiana Jones and Buffy the Vampire Slayer disambiguation Buffy the Vampire Slayer . ref name DoubleHelixInfo Games class wikitable sortable Name Platform s Release date s Green Lantern Rise of the Manhunters PlayStation 3 Wii Xbox 360 2011 Front Mission Evolved ref name announcement cite web author Ng, Keane date May 29, 2009 title Square Enix Announces New Front Mission, Nier url http ... developers Category Companies based in Irvine, California es DoubleHelix Games fr DoubleHelix Games pl DoubleHelix Games pt DoubleHelix Games ru DoubleHelix Games sv DoubleHelix Games ... more details
Infobox award name DoubleHelix Medal current awards image DoubleHelix medal.jpg alt caption DoubleHelix Medal description Individuals who have positively impacted human health by raising awareness and funds for biomedical research presenter Cold Spring Harbor Laboratory country United States year 2006 website http doublehelixmedals.cshl.edu doublehelixmedals.cshl.edu The DoubleHelix Medal has been awarded annually since 2006 by Cold Spring Harbor Laboratory CSHL to individuals who have positively impacted human health by raising awareness and funds for biomedical research. At the inaugural dinner, Muhammad Ali received the first DoubleHelix Medal for his fight against Parkinson s disease. Other notable recipients include founders of Autism Speaks Suzanne and Bob Wright former Paramount ... scientists and Nobel laureates. br br The DoubleHelix Medal is named for the iconic winding ..., and is at the heart of work at CSHL. br br History of the DoubleHelix Medal http doublehelixmedals.cshl.edu ... http www.cshl.edu Archive 28 million raised at 2009 doublehelix medals dinner 2.8 million raised at 2009 DoubleHelix Medals dinner Herbert W. Boyer Stanley N. Cohen Kathryn W. Davis Maurice Greenberg ... laboratorys 2008 doublehelix medals dinner 3.6 Million Raised at Cold Spring Harbor Laboratory s 2008 DoubleHelix Medals Dinner Sherry Lansing Marilyn and James Simons James D. Watson J. Craig ... harbor laboratorys 2007 doublehelix medals dinner 3.1 Million Raised at Cold Spring Harbor Laboratory s 2007 DoubleHelix Medals Dinner David Koch Michael Wigler Richard Axel br November 9, 2006 br Press Release http www.cshl.edu Archive cshl raises 25 million at inaugural doublehelix medals event a launches 200 million capital campaign CSHL Raises 2.5 Million at Inaugural DoubleHelix Medals ... 13 06 socialdiary11 13 06.php http www.panachemag.com web beseen coldspringharborlab doublehelix medals ... harbor laboratorys doublehelix medal dinner br Category Awards established in 2006 ... more details
Diffuse nebula name DoubleHelix Nebula image Image DoubleHelixNebula nr6903a.jpg 250px caption Spitzer Space Telescope image with artificial coloration type Emission nebula Emission Nebula dis ly 25,000 epoch J2000 The DoubleHelix Nebula is a gaseous nebula near the center of our Milky Way Galaxy galaxy . It is thought to have been distorted by magnetic Torsion mechanics torsion into the shape of two connected spirals, known popularly as a doublehelix , akin to the shape of DNA . The nebula was discovered by the Spitzer Space Telescope . The segment seen so far is thought to be 80 light year s long, 300 light years from the supermassive black hole thought to be at the galaxy s center, and 25,000 light years from Earth ref name ucla cite web last Wolpert first Stuart title Astronomers Report Unprecedented DoubleHelix Nebula Near Center of the Milky Way url http www.newsroom.ucla.edu page.asp?RelNum 6903 accessdate 2007 04 22 ref . This nebula is seen as circumstantial evidence that the magnetic fields at the center of the galaxy are extremely strong, more than 1,000 times stronger than those of the Sun . If so, they may be driven by the massive disc of gas orbiting the central supermassive black hole. The DoubleHelix Nebula should not be confused with the Helix Nebula , a planetary nebula only 650 light years from Earth. References reflist Category Unclassified nebulae nebula stub lt DNR kas pt Nebulosa da Dupla H lice zh ... more details
The DoubleHelix Corporation is a non profit organization which owns and operates KDHX TV cable channel 21 and KDHX 88.1 FM in St. Louis, Missouri , United States. It also operates Public access television public access channel 22 for the city. External links http www.kdhxtv.org Official website Also have mirror website at www.dhtv.org Category Media companies of the United States nonprofit org stub ... more details
The DoubleHelix methodology is a systems development methodology used by Lockheed Martin . It combines experimentation, technology, and a warfighter s Concept of Operations concept of operations to create new tactics and weapons. ref name DoubleHelixInfo http www.atl.lmco.com news techbriefs techbriefs DH.php The Right Technology for Tomorrow Today Retrieved on November 25, 2010. ref References Reflist Category Lockheed Martin ... more details
Primarysources date November 2008 otheruses doublehelix disambiguation Infobox Television episode Title DoubleHelix Series The Outer Limits Image Caption Season 3 Episode 12 Airdate 28 March 1997 Production 56 Writer Jonathan Glassner Director Mario Azzopardi Photographer Guests Ron Rifkin , Ryan Reynolds , Tara Spencer Nairn Episode list List of The Outer Limits episodes List of The Outer Limits episodes Prev New Lease The Outer Limits New Lease Next Dead Man s Switch The Outer Limits Dead Man s Switch DoubleHelix is an episode of The Outer Limits 1995 TV series The Outer Limits television show. It first aired on 28 March 1997, during the third season. Introduction A geneticist , Dr Martin Nodel, is a researcher looking into intron s, mysterious sections of DNA that he believes hold the secret to future evolution . He develops a formula that he believes will activate them, and tests it on himself. Opening narration cquote Perhaps we should ask ourselves, will the next leap of science be a step into the future, or a plunge into the abyss? Plot After developing the liquid that acts on the intron genetic material in DNA that acts as spacers and does not code for protein he tests it on fish , and found that the liquid transforms the fish to amphibia . Then he tests it on himself, and begins experiencing strange symptoms, including a sort of map that grows on his back and a pattern that grows on his hand. Shortly after he begins looking for students that are suitable candidates. They have to have a high IQ, never had surgery, and are free from imperfections such as tattoos or glasses. They also have to be in a certain age, weight, and height range. After finding the needed ... External links Tv.com episode id 21477 title DoubleHelix http www.scifi.com outerlimits episodes season3 312doublehelix.html DoubleHelix at Sci Fi Channel United States Sci Fi imdb episode id 0667882 title DoubleHelix Outer3 Category The Outer Limits 1995 TV series episodes Category 1997 television ... more details
DoubleHelix 2004 , a novel by Nancy Werlin , is about 18 year old Eli Samuels, who works for a famous molecular biologist named Dr. Quincy Wyatt. There is a mysterious connection between Dr. Wyatt and Eli s parents, and all Eli knows about the connection is that it has something to do with his mother, who has Huntington s disease . Because of the connection between Dr. Wyatt and the Samuels family, Eli s father is strongly against Eli working there. The job is perfect, and the wages are great, but Eli can t help but notice that Dr. Wyatt seems to be a little too interested in Eli. Later on, as Eli continues to wor k in the lab, he discovers with the help of Kayla Matheson, Dr. Wyatt s supposed niece, that he and Kayla are the product of a highly unethical eugenics experiment. Characters class wikitable Character Description Eli Samuels He s 18 years old, 7 feet tall and an A student. His mother has a genetic disease, which he could have, too. Additional his father has a lot of secrets to hide from him. Jonathan Samuels He s Eli s father, who still loves his wife a lot. He has a problem with Eli working at Wyatt Transgenic s, but he won t tell why. Further he s keeping a lot of things a secret. Dr. Quincy Wyatt He s a famous geneticist, who offers Eli a job. He knew Eli s parents a long time ago and shows a huge interest in Eli and his life. Vivian Fadiman She s Elis girlfriend and she really loves and trusts him. All she wants is to be part of his life and she supports him in everything she does. It s hard for her to understand why Eli hides a huge part of his life from her ... and, in some cases, even predict the presence of a genetic abnormality. In DoubleHelix, this ability ... wave of biological weapons . DoubleHelix shows the life saving and life destroying aspects to genetic ... ref ref http www.amazon.com dp 014240327X Amazon.com DoubleHelix Puffin Sleuth Novels Books Nancy Werlin Bot generated title ref References reflist DEFAULTSORT DoubleHelix Novel Category 2004 novels ... more details
unreferenced date July 2010 Infobox VG title Soldier of Fortune II DoubleHelix image Image SOF2gamecover.jpg 256px Soldier of Fortune II box cover developer Raven Software br Gratuitous Games Xbox port publisher Activision designer engine id Tech 3 Quake III Team Arena with Raven s custom SDK version 1.03 released May 20, 2002 genre First person shooter modes Single player , multiplayer game multiplayer ratings vgratings ESRB Mature M 17 OFLC MA15 BBFC 18 UK USK 18 heavy cut PC version 18 uncut Xbox version PEGI 18 platforms Apple Macintosh , Microsoft Windows , Xbox media CD DVD requirements Pentium II 450 MHz or equivalent, 128 MB Random access memory RAM , 16 MB DirectX compatible video card input Computer keyboard Keyboard , Mouse computing mouse , joystick optional Soldier of Fortune II DoubleHelix is a video game created by Raven Software , a sequel to Soldier of Fortune video game Soldier of Fortune . It was developed using the id Tech 3 Quake III Team Arena engine. Once again, Raven hired John Mullins to act as a consultant on the game. Based on comments and criticisms of the original game, Raven Software developed Soldier of Fortune II to be a more realistic game, with tactical shooter s like Operation Flashpoint Cold War Crisis and Tom Clancy s Rainbow Six as inspirations rather than Quake video game Quake . A sequel titled Soldier of Fortune Payback , made by Cauldron HQ was released for Microsoft Windows , PlayStation 3 and Xbox 360 in 2007. Story The theme of the sequel is germ warfare , as the mercenary Mullins and his new partner Madeline Taylor travel to Colombia ... Xbox games es Soldier of Fortune II DoubleHelix eo Soldier of Fortune II DoubleHelix fr Soldier of Fortune II DoubleHelix ko II it Soldier of Fortune II DoubleHelix pl Soldier of Fortune II DoubleHelix pt Soldier of Fortune II DoubleHelix ru Soldier of Fortune II DoubleHelix fi Soldier of Fortune II DoubleHelix sv Soldier of Fortune II DoubleHelix ... more details
in biology , as the DNA molecule is formed as doublehelix two intertwined helices , and many protein s have helical substructures, known as alpha helix alpha helices . The word helix comes from the Greek ... Z form of DNA is left handed. The pitch of a helix is the width of one complete helix turn, measured parallel to the axis of the helix. A doublehelix consists of two typically congruent helices with the same .... ref http demonstrations.wolfram.com DoubleHelix DoubleHelix by S ndor Kabai, Wolfram Demonstrations Project . ref A conic helix may be defined as a spiral on a conic surface, with the distance to the apex ... octave equivalency . See also Alpha helix Boerdijk Coxeter helix Collagen Doublehelix ml Symmetry ...About the shape Image Helix.svg thumb The helix cos t , sin t , t from t 0 to 4 with arrowheads showing ... of a foldamer folded molecular helix reported by Jean Marie Lehn Lehn and coworkers in Helv. Chim. Acta., 2003, 86, 1598 1624. Image DirkvdM natural spiral.jpg thumb A natural left handed helix, made by a Vine climber plant. A helix pl helixes or helices is a type of space curve , i.e. a Differentiable ... are coil springs and the handrails of spiral staircases. A filled in helix for example, a spiral ... of sight along the helix s axis, if a clockwise screwing motion moves the helix away from the observer, then it is called a right handed helix if towards the observer then it is a left handed helix. Handedness or chirality mathematics chirality is a property of the helix, not of the perspective a right handed helix cannot be turned or flipped to look like a left handed one unless it is viewed in a mirror, and vice versa. Most hardware screw thread s are right handed helices. The alpha helix ... Cedar Point Corkscrew roller coaster at Cedar Point amusement park. A circular helix, i.e. ... is called a general helix or cylindrical helix ref O Neill, B. Elementary Differential Geometry, 1961 ... helix if and only if the ratio of curvature to Torsion of curves torsion is constant. ref O Neill ... more details
Infobox building building name The Helix image The helix2.JPG building type Theatre architectural style structural system location Dublin , Ireland completion date 2002 opened 1950s main contractor architect Andrzej Wejchert & Danuta Kornaus Wejchert structural engineer otheruses Helix disambiguation The Helix is a building on the Dublin City University campus between Glasnevin and Whitehall on Dublin s Northside Dublin Northside , originally planned to be called the Aula Maxima . Recently completed, in 2002, it is described as a performance space and holds concerts, university conferring ceremonies and national arts shows. The Helix has three areas for live performances The Mahony Hall 1260 seats , The Theatre 450 seats , and The Space 150 seats . About Image Irelandscape helix reception.jpg 220px thumb right Foyer, Ground floor At a cost of Euro 36.5 million, The Helix is an Arts Centre ... can be changed to allow alternative uses. The Helix has been host to world class performances ... Ballet St. Petersburg Ballet , International Theatre and World Singers to hit west End Shows. The Helix ... played the venue. The Helix has been host to a number of television programmes including The Dunphy ... home to the National Chamber Choir of Ireland . The Helix has also hosted RT Radio 1 s leading arts programme, Rattlebag . The Helix was awarded the Opus Building of the Year Award in 2003 ... can seat 150. The Gallery The Gallery, situated on the top floor of The Helix is a dedicated exhibition ... Classic Stage Ireland Based in The Helix http www.irelandscape.com display location.php?location ... Photographs of The Helix from flickr.com http www.flickr.com photos griangrafanna tags thehelix Photographs of The Helix from flickr.com different tag Theatres in Ireland RT Performing Groups coord 53 23 11 N 6 15 34 W type landmark display title DEFAULTSORT Helix Category Concert halls in the Republic of Ireland Category Dublin City University Category Glasnevin Category The Helix Category ... more details
wiktionary helix A helix is a spiral like shape. Helix may also refer to TOCright Publications Helix comics , a 1996 1998 DC comics imprint Helix newspaper Helix newspaper , a 1960s underground publication Helix Magazine , a Central Connecticut State University publication Helix , a novel by Eric Brown writer Eric Brown Helix, a team of super villains in the Infinity Inc. comic series Computing Helix cipher Helix database Helix multimedia project Other uses Helix band Helix company , a UK scholastic stationery manufacturer Helix ear Helix gastropod Helix gastropod , a genus of snails Helix video game Helix video game Helix film Helix film , also known as Innocent The Helix , a performance space in Ireland The Helix Bridge , Singapore Honda Helix , a scooter Helix High School Helix Nebula DJ Helix , a DJ from the United Kingdom Kamov Ka 27 , a helicopter, NATO reporting name Helix New Jersey Route 495 or The Helix, a roadway approaching the Lincoln Tunnel A recurring element in the Mythology of Heroes Helix mythology of Heroes See also Helix SF , an online magazine disambig cs Helix de Helix Begriffskl rung es H lice eo Helico apartigilo fr H lice homonymie it Elica disambigua nl Helix no Helix andre betydninger pt Helix fi Helix ... more details
Image Helix angle.jpg thumb Helix Angle In mechanical engineering , a helix angle is the angle between any helix and an axial line on its right, circular cylinder or cone. ref name agma Citation isbn 1 ... s, helical gear s, and worm gear s. The helix angle references the axis of the cylinder, distinguishing it from the lead angle , which references a line perpendicular to the axis. Naturally, the helix angle is the geometric Complementary angles complement of the lead angle. The helix angle is measured in degrees. Concept In terms specific to screws, the helix angle can be found by unraveling the helix ... mechanical applications of the helix angle. File Helix angle v2.svg 300px The helix angle can be expressed as ref Shigley, p. 401. ref math mbox Helix angle arctan left frac 2 pi r m l right math ... The helix angle is crucial in mechanical engineering applications that involve Mechanical ... its use is much more widely spread. Screw File Efficiency vs helix angle.svg thumb 300px A plot of the efficiency of a screw versus the thread helix angle. Cutting a single helical groove into a screw stock cylinder yields what is called single thread screw. Similarly, one may construct a double thread screw provided that the helix angle is steeper, and a second thread is cut in the space between ... Hall, 2006. ref The helix may be cut either right hand or left hand. In screws especially, the helix ... phi 2 math math eta max frac 1 sin phi 1 sin phi math Where math alpha , math is the helix angle ... is controlled by the helix angle. The efficiency can be plotted versus the helix angle for a constant friction, as shown in the diagram to the right. The maximum efficiency is a helix angle between ... the thread, helix angle greater than 30 are rarely used. Moreover, above 30 the friction angle becomes greater than the helix angle and the nut is no longer self locking and the mechanical advantage ... and worm gears, the helix angle denotes the standard pitch circle unless otherwise specified ... more details
, with the OS and Helix on one floppy, and data on another. Leaving room for a maximum database size of under 500k, Helix s data management capabilities did not need to be all that strong. Nevertheless it was a full relational database . In May 1986 Odesta released DoubleHelix for 495. The main new ... Odesta split up, with the original Helix applications being spun off. DoubleHelix re emerged as Helix Express at Helix Technologies , marketed as a performance leader as opposed to easy to use . Unfortunately, the parent company became entangled in an unrelated but costly legal battle, and Helix languished. In 1998, Helix Technologies was purchased by The Chip Merchant, a San Diego based memory vendor, who released a major upgrade in 2000, adding TCP IP capabilities to Helix Client Server and improving ...Helix is a pioneering database management system for the Apple Macintosh platform, created in 1983. Helix ... to construct sophisticated applications. While this sort of ease of use should have made Helix a killer ... problems relegated it to a niche product. As of 2005, Helix is twenty one years old, but still has ..., Helix s marketing and ownership problems led it to a life as a niche product on an OS with a small ..., Helix received rave reviews when it was released the next year. At the time the Mac only supported ... applications. In comparison, the original Helix produced applications that were clearly running within Helix, much as a Microsoft Word document is clearly running inside Word . Released as a part of a larger suite of software, the Helix suite also included a stand alone run time system runtime version known as RunTime Helix which would allow users to run DoubleHelix applications without the full version installed, as well as MultiUser Helix which operated in a client server fashion. Upgrades to the Helix ... of time and money working on a version known as Remote Helix which ran the basic Helix development system ... and a slumping economy combined to drive The Chip Merchant into bankruptcy in 2002, sending Helix ... more details
. ref Cite news title World s first curved doublehelix bridge opens at Marina Bay on April 24 ... Marina Bay. ref http www.marina bay.sg enews apr06 DoubleHelix 20Bridge.htm Marina Bay Explore Marina Bay ref At night, the bridge will be illuminated by a series of lights that highlight the doublehelix structure, thereby creating a special visual experience for the visitors. ref http www.ura.gov.sg ...Coord 1 17 15.44 N 103 51 38.15 E type landmark display title Infobox bridge bridge name The Helix Bridge native name image DoubleHelix Bridge.jpg image size 300 alt caption The newly opened Helix Bridge at night, 24 April 2010 official name The Helix carries Pedestrians crosses Singapore River locale Marina Bay, Singapore Marina Bay maint id designer COX Group Pte Ltd Australia , ARUP Pte Ltd Australia and Architects 61 Singapore design builder material Steel , fritted glass and steel mesh canopies spans pierswater mainspan length 280m width height load clearance below traffic begin complete open April 24, 2010 The Helix Bridge , previously known as the DoubleHelix Bridge , is a pedestrian bridge linking Marina Centre with Marina South in the Marina Bay, Singapore Marina Bay area in Singapore ... view 1052344 1 .html title Marina s pedestrian bridge named The Helix , vehicular bridge ... a concrete span bridge which is located parallel to the Helix bridge while TTJ Design and Engineering led in the fabrication and erection of the Helix structure. Key personnel in the project from ... Engr and many others who contributed to the whole span of the bridge. The Helix is fabricated from ... helping the bridge to get the helix shape. Hundred of workers have contributed to the completion of the bridge. References Reflist External links Commons The Helix Bridge http www.singaporevr.com vrs HelixBridge HelixBridge01.html 360 Interactive VR image of the Helix Bridge http www.marina bay.sg ... Attractions in Singapore DEFAULTSORT Helix Bridge Category Bridges in Singapore Category Visitor attractions ... more details
Orphan date March 2011 unreferenced date September 2009 Infobox G.I. Joe character name Agent Helix image Agent Helix.jpg caption affiliation G.I. Joe function realname Classified birthplace Classified serial Classified rank Corporal E 4 primaryMOS Commando secondaryMOS covert operation Covert Operations subgroup previous series G.I. Joe A Real American Hero voiceby debut 2009 Agent Helix is a character from the G.I. Joe series, G.I. Joe A Real American Hero . She was designed by Mayan Escalante, a character artist at DoubleHelix Games , as an unlockable character in the video game G.I. Joe The Rise of Cobra video game G.I. Joe The Rise of Cobra . She then became an action figure in the 2009 edition of the toyline. Character biography Agent Helix is a covert operations officer with advanced martial arts training and expert marksmanship. Her favorite weapons are dual 10mm Auto pistols. An olympic class gymnast, her distinctive Whirlwind attack is an overpowering combination of kicks and firepower. Video games Agent Helix appears in the G.I. Joe The Rise of Cobra video game G.I. Joe The Rise of Cobra video game voiced by Nancy Truman . External links http www.yojoe.com action 09 agenthelix.shtml Agent Helix http gijoe.wikia.com wiki Agent Helix gijoe.wikia.com G.I. Joe Category G.I. Joe characters Category 2009 introductions Category Fictional special forces personnel GIJoe stub ... more details
Unreferenced date December 2009 Project Helix is the name of a fictional technology in the TV series Alias TV Alias . The device is used to rewrite a person s DNA , effectively morphing them into a clone of the person from whom the replacement DNA was procured. The only way to detect a double is through a deliberate flaw built into the process, detectable by an ocular scan. It is unknown whether the process is reversible. Since its creation, there have been three known and two possible subjects of Project Helix Confirmed Project Helix subjects Jim Lennox A CIA agent who, with his partner and fianc e Emma Wallace, infiltrated the organization of Helix inventor Dr. Enzo Markovic. Lennox was captured and used as the genetic source to transform Markovic into his double. Lennox was rescued by a CIA team led by Sydney Bristow and traveled with her to Poland to retrieve the schematics of the Helix device and destroy it. There they encountered Markovic, still Lennox s double. Lennox killed Markovic and Sydney destroyed the Helix equipment, but not before discovering that another duplicate had been created. Francie Calfo Sydney s roommate and best friend. An agent named Allison Doren, lover of Julian Sark , was transformed into Francie s double and then killed Francie. Allison used Francie s identity to infiltrate and bug Sydney s apartment and continue Francie s relationship with Will Tippin . Will was at the time working as an analyst for the CIA and Allison hypnotically extracted intel from him as he slept. He and Sydney became suspicious of Allison, which led Allison to attempt to kill ... to look like Irina had taken out a contract on Sydney s life. Possible Project Helix subjects Doctor ... in the episode Double Agent Jack Bristow states that the subject must be placed in an induced coma for several days . Alias Category Fictional technology Category Alias TV series da Project Helix ro Project Helix ... more details
Image Lambda repressor 1LMB.png 200px thumb The &lambda repressor of bacteriophage lambda employs a helix turn helix left green to bind DNA right blue and red . In protein s, the helix turn helix HTH is a major structural motif capable of binding DNA . It is composed of two alpha helix helices joined by a short strand of amino acid s and is found in many proteins that regulate gene expression . It should not to be confused with the helix loop helix domain. Its discovery was based on similarities between the genes for Cro, Catabolite activator protein CAP , and cI protein repressor , which share a common 20 25 amino acid sequence that facilitates DNA recognition. In particular, recognition and binding to DNA is done by the two helices, one occupying the N terminus N terminal end of the motif, the other at the C terminus . In most cases, such as in the Cro repressor, the second helix contributes most to DNA recognition, and hence it is often called the recognition helix . It binds to the major groove of DNA through a series of hydrogen bond s and various Van der Waals bonding Van der Waals interactions with exposed base pair bases . The other helix stabilizes the interaction between protein and DNA, but does not play a particularly strong role in its recognition. See also Winged helix turn helix DNA binding domain Secondary structure Zinc finger DNA binding protein References cite journal author Brennan R, Matthews B title The helix turn helix DNA binding motif journal J. Biol. Chem. volume 264 issue 4 pages 1903 6 date 5 February 1989 url http www.jbc.org cgi reprint 264 4 1903 pmid 2644244 cite journal author Matthews B, Ohlendorf D, Anderson W, Takeda Y title Structure ... 1 Helix turn helix motif, lambda like repressor , from EMBL http www.biochem.arizona.edu classes ... Protein secondary structure Transcription factors g3 DEFAULTSORT Helix Turn Helix Category Protein structural ... de Helix Turn Helix Motiv es H lice giro h lice it Elica giro elica ja sl Vija nica ... more details
orphan date April 2010 Merge Winged helix transcription factors date April 2010 The winged helix turn helix wHTH SCOP 46785 is a DNA binding domain which binds to specific DNA sequences. It is formed by a 3 helical bundle and a 3 or 4 strand beta sheet wing . Topology of alpha helix helices and Beta sheet strands in the wHTH families may vary. In the transcription factor ETS ref name pmid9570133 cite journal author Sharrocks AD, Brown AL, Ling Y, Yates PR title The ETS domain transcription factor family journal Int. J. Biochem. Cell Biol. volume 29 issue 12 pages 1371 87 year 1997 pmid 9570133 doi 10.1016 S1357 2725 97 00086 1 ref InterPro IPR000418 wHTH folds into a helix turn helix motif on a four stranded anti parallel beta sheet scaffold arranged in the order 1 1 2 2 3 3 4 ref name pmid8598195 cite journal author Donaldson LW, Petersen JM, Graves BJ, McIntosh LP title Solution structure of the ETS domain from murine Ets 1 a winged helix turn helix DNA binding motif journal EMBO J. volume 15 issue 1 pages 125 34 year 1996 pmid 8598195 doi pmc 449924 ref PDB 1R36 where the third helix is the DNA recognition alpha helixhelix . See also DNA binding domain References Reflist 1 Category Proteins Category Molecular genetics Category Protein domains protein stub ... more details
Image alpha helix neg60 neg45 sideview.png right thumb 200px Side view of an helix of alanine residues ... down. A common motif in the secondary structure of protein s, the alpha helixhelix is a right ... Pauling Corey Branson alpha helix see below . Among types of local structure in proteins, the helix ... molecules formed a helix which he called the form and the stretching caused the helix to uncoil ... , the helix and the Beta sheet strand Astbury s nomenclature was kept , which were developed ... 10.1098 rspa.1950.0142 ref to propose models of keratin that somewhat resemble the modern helix. Two key developments in the modeling of the modern helix were 1 the correct bond geometry, thanks ... of residues per turn of the helix. The pivotal moment came in the early spring of 1948, when Pauling ... on a strip of paper and folded it into a helix, being careful to maintain the planar peptide bonds ... 1954 such as proteins , prominently including the structure of the helix. Image alpha helix neg60 neg45 topview.png thumb right 200px Top view of the same helix shown above. Four carbonyl groups ... amino acid amino acid residues per turn of the helix. Structure Geometry and hydrogen bonding The amino acids in an helix are arranged in a right handed helix helical structure where each amino acid residue corresponds to a 100 turn in the helix i.e., the helix has 3.6 residues per turn , and a translation of convert 1.5 nm abbr on along the helical axis. Short pieces of left handed helix sometimes ... normal, biological amino acids L amino acids . The pitch of the alpha helix the vertical distance between one consecutive turn of the helix is convert 5.4 nm abbr on which is the product of 1.5 and 3.6 ... math hydrogen bonding is the most prominent characteristic of an helix. Official international nomenclature ... 22 pages 2577 2637 doi 10.1002 bip.360221211 pmid 6667333 issue 12 ref Image Alpha vs 310 helix end views.jpg thumb left 300px Contrast of helix end views between squarish vs 3 10 triangular Similar ... more details
Italic title Taxobox name Bulbophyllum helix image regnum Plantae unranked divisio Angiosperms unranked classis Monocots ordo Asparagales familia Orchidaceae subfamilia Epidendroideae genus Bulbophyllum species Bulbophyllum helix binomial binomial authority synonyms Bulbophyllum helix is a species of orchid in the genus Bulbophyllum . References http bulbophyllum checklist.bulbophyllum.at The Bulbophyllum Checklist http www.orchidspecies.com indexbulb.htm The internet Orchid species Photo Encyclopedia DEFAULTSORT Bulbophyllum Helix Category Bulbophyllum helix Bulbophyllum stub vi Bulbophyllum helix ... more details
Pfam box Symbol bHLH Name basic helix loop helix DNA binding domain image Basic helix loop helix.png width caption Basic helix loop helix structural motif of aryl hydrocarbon receptor nuclear translocator ARNT . Two alpha helix helices blue are connected by a short turn biochemistry loop red . ref ... , PDB2 1nkp , PDB2 1nlw , PDB2 1r05 , PDB2 1ukl , PDB2 2ql2 A basic helix loop helix bHLH is a protein ... MW, Rivera RR, Stuiver MH title Structure and function of helix loop helix proteins journal Biochim ... Littlewood TD, Evan GI title Transcription factors 2 helix loop helix journal Protein Profile volume ... author Massari ME, Murre C title Helix loop helix proteins regulators of transcription in eucaryotic ... 10611221 ref Structure The motif is characterized by two alpha helix helices connected by a turn ... , each with one helix containing base chemistry basic amino acid residues that facilitate DNA binding ... year pages isbn 0 7167 8635 4 oclc doi ref In general, one helix is smaller, and, due to the flexibility of the loop, allows dimerization by folding and packing against another helix. The larger helix typically contains the DNA binding regions. bHLH proteins typically bind to a consensus sequence ... Basic helix loop helix proteins can act at the E box within the serum response element of the c fos ... proteins, such as the Drosophila extramacrochaetae protein, have the helix loop helix structure but lack ... helix loop helix proteins generate complexes that bind specifically to a common DNA sequence ... SC title Crystal structure of transcription factor E47 E box recognition by a basic region helix loop helix dimer journal Genes Dev. volume 8 issue 8 pages 970 80 year 1994 month April pmid 7926781 ... to E boxes, demonstrating that the parallel 4 helix bundle motif loop orients the basic sequences to interact ... factor 1 is a basic helix loop helix PAS heterodimer regulated by cellular O2 tension journal Proc ... 314 27 year 2009 pmid 19632181 doi 10.1016 j.cell.2009.04.058 ref Human proteins with helix loop helix ... more details
Taxobox image Helix lucorum 2.jpg image caption live specimen of Helix lucorum status NE status ref ref IUCN 2008. 2008 IUCN Red List of Threatened Species. www.iucnredlist.org . Downloaded on 16 April 2009. ref regnum Animal ia phylum Mollusca classis Gastropoda familia Helicidae genus Helix genus Helix subgenus Helix species H. lucorum binomial Helix lucorum binomial authority Carl Linnaeus Linnaeus , 1758 Helix lucorum is a species of large, edible, air breathing land snail or escargot , a Terrestrial animal terrestrial pulmonate gastropod mollusk in the family biology family Helicidae , the typical snails. Synonyms Numerous Synonym taxonomy synonyms exist for Helix lucorum Helix anaphora Westerlund, 1889 Helix annosa Mascarini, 1892 Helix atrocincta Bourguignat, 1883 Helix candida Mascarini, 1892 Helix elongata Bourguignat, 1860 Helix nigrozonata Bourguignat, 1883 Helix presbensis Kobelt, 1905 Helix rypara Bourguignat, 1883 Helix straminea Briganti, 1825 Helix straminiformis Bourguignat, 1876 Helix virago Bourguignat, 1883 Helix yleobia Bourguignat, 1883 ref name cited 5 May 2007 http www.faunaeur.org full results.php?id 277677 cited 5 May 2007 ref Description Image Helix lucorum.jpg left thumb The gastropod shell shell of Helix lucorum This species of snail makes and uses love dart s. The size of the egg is 4.4 mm. ref name Barker Heller J. Life History Strategies . in Barker G. M. ed. http books.google.com books?id WlvX 9Wt0toC&hl The biology of terrestrial molluscs . CABI ..., page 12 and Appendix 2. ref References reflist External links commons Helix lucorum http szmn.sbras.ru picts Mollusca Helix lucorum.htm http www.jaxshells.org 818d.htm http www.faunaeur.org full results.php?id 277677 http www.helicicultura.es TODO SOBRE CARACOLES Edible molluscs Category Helix Category Edible molluscs Helicidae stub de Gestreifte Weinbergschnecke es Helix lucorum fr Helix lucorum nl Helix lucorum ... more details
Helix is a family run United Kingdom based manufacturer of scholastic stationery . It currently employes 75 people, and exports to over 65 countries, with offices in Chicago and Hong Kong and with UK headquarters based in Lye, West Midlands . History Helix was established in 1887, under the name The Universal Woodworking Company Ltd. , manufacturing wooden Ruler rules and metal laboratory apparatus.In 1894 it patented the Compass drafting drawing compass , and with it, launched the Helix brand, following on from the initial success of the compass and rule, in 1912 the companies first mathematical set was created and in 1935 the brand Helix Oxford was launched. 1955 saw the company become known as the Helix Universal Company , moving its headquarters to Lye, where it is still based today. In the 1960s the name again changed to its current name Helix International Ltd. . Brands Helix Splat and Tribe fashion stationary Helix Oxford high quality mathematical instruments and stationery Helix Technical technical drawing instruments for older students and professional use External Links http www.helix.co.uk index.php Helix UK company stub Category Companies of the United Kingdom Category Technical drawing Category Companies established in 1887 ... more details
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