Unreferenced stub auto yes date December 2009 Context date October 2009 Cleanup date June 2007 Protein sequence s can provide data about the biological function and evolution of proteins and protein domains. Grouping and interrelating protein sequences can therefore provide information about both human biological processes, and the historical development of biological processes on earth. Such Sequence cluster s allow the effective coverage of Protein sequence space sequence space . Sequence cluster s can reduce a large database of sequences to a smaller set of sequence representatives , each of which should represent its cluster at the sequence level. Sequence representatives allow the effective coverage of the original database with fewer sequences. The database of sequence representatives is called non redundant , as similar or redundant sequences have been removed at a certain similarity threshold. DEFAULTSORT Representative Sequences Category Protein structure Category Bioinformatics Biology stub Bioinformatics stub ... more details
For complementary sequences in biology, see complementarity molecular biology . In applied mathematics, complementary sequences CS are pairs of sequence s with the useful property that their out of phase aperiodic autocorrelation coefficients sum to zero. Binary complementary sequences were first introduced by Marcel J. E. Golay in 1949. In 1961 1962 Golay gave several methods for constructing sequences of length 2 sup N sup and gave examples of complementary sequences of lengths 10 and 26. In 1974 R. J. Turyn gave a method for constructing sequences of length mn from sequences of lengths m and n which allows the construction of sequences of any length of the form 2 sup N sup 10 sup K sup 26 sup M sup . Later the theory of complementary sequences was generalized by other authors to polyphase complementary sequences, multilevel complementary sequences, and arbitrary complex complementary sequences. Complementary sets have also been considered these can contain more than two sequences. Definition ... 1 sub , ..., b sub N &minus 1 sub be a pair of bipolar sequences, meaning that a k and b ... by math R x k sum j 0 N k 1 x jx j k . , math Then the pair of sequences a and b is complementary ... functions of complementary sequences is a delta function which is an ideal autocorrelations ... As the simplest example we have sequences of length 2 1, 1 and 1, &minus 1 . Their autocorrelation ... example sequences of length 4 , we have 1, 1, 1, &minus 1 and 1, 1, &minus ... 1, 0, &minus 1 . Properties of complementary pairs of sequences Complementary sequences ... complementary sequences also have complementary spectra. But as the Fourier transform of a delta ... a sub and S sub b sub are defined as a squared magnitude of the Fourier transform of the sequences. The Fourier transform can be a direct DFT of the sequences, it can be a DFT of zero padded sequences or it can be a continuous Fourier transform of the sequences which is equivalent to the Z transform ... more details
Unreferenced date December 2009 Orphan date December 2009 In a film script , a shooting sequence is a part of the script consisting of a single unified action and which can be Shot film shot in one place, at one time, with essentially the same cast throughout. A shooting sequence can be part of a Scene film scene , an entire scene, or several scenes in a script. During preproduction , a script is lined , meaning that a line is drawn between each of the shooting sequences in the script and each important element in the sequence is highlighted. See also Breaking down the script Screenplay slug line DEFAULTSORT Shooting Sequences Category Film and video terminology ... more details
Orphan date October 2008 Collapsing sequences occur in human speech when utterance pairs between speakers have some unspoken thought occurring between them that may make the latter phrase, out of context, seem to have no logical connection to the former there is, however, an implication that logical thought has occurred between the two phrases, so that the latter phrase will make sense based upon an assumption of its relation to the former. Examples Customer What s chocolate filbert? Clerk We don t have any. The clerk s reply is in response to what he knows will come next in the discourse . If the clerk had proceeded to explain what chocolate filbert is, then it is possible that the customer would have asked for some. By explaining what the product is, the clerk would have tacitly implied that he had some to sell. Describing a product in a selling situation is often an implication that it is available. A waiter, for example, would not launch into a detailed description of a particular dish that a customer is inquiring about, only to end the discourse by then informing the customer that the dish is not available. Another common collapsing sequence is illustrated below A. Do you smoke? B. I left them in my other jacket. This type of collapsing sequence speeds up social interaction by averting unnecessary explanations. Collapsing sequences can be used in other situations as well, such as when someone joins a discussion already in progress Hi, John. We were just talking about nursery schools. In the phrasing of this response, the speaker is either warning John not join the group, or is giving him orientation so that he can understand the context of the discussion and participate. References Chaika, Elaine. Language The Social Mirror . Rowley, Massachusetts Newbury House , 1982 pp. 85 86 . Category Linguistics ... more details
in the hydration of DNA surfaces can be used to distinguish between sequences that form A and B DNA. From this, a triplet code of A DNA propensities was derived as energetic rules for predicting A DNA formation. This code correctly predicted 90 of A and B DNAsequences in crystals and correlates with A DNA formation in solution. Thus, with our previous studies on Z DNA, we now have a single method to predict the relative stability of sequences in the three standard DNA duplex conformations. ref name Basham1995 cite journal author Basham B, Schroth GP, Ho PS title An A DNA triplet code thermodynamic rules for predicting A and B DNA journal Proc Natl Acad Sci USA volume 92 issue 14 pages ...Image A DNA orbit animated small.gif right frame The A DNA structure. A DNA is one of the many possible double helical structures of DNA . A DNA is thought to be one of three biologically active double helical structures along with B DNA B and Z DNA . It is a right handed double helix fairly similar to the more common and well known B DNA form, but with a shorter more compact helical structure. It appears likely that it occurs only in dehydrated samples of DNA, such as those used in crystallographic experiments, and possibly is also assumed by DNA RNA hybrid helices and by regions of double stranded RNA. Structure A DNA is fairly similar to B DNA given that it is a right handed double helix with major ... turn. This results in a deepening of the major groove and a shallowing of the minor. Predicting A DNA structure An algorithm for predicting the propensity of a sequence to flip from B DNA to A DNA ... cite journal author Basham B, Schroth GP, Ho PS title An A DNA triplet code thermodynamic rules for predicting A and B DNA journal Proc Natl Acad Sci USA volume 92 issue 14 pages 6464 6468 year ... of the Most Common DNA Forms Image A DNA, B DNA and Z DNA.png right thumb Side view of A , B , and Z DNA. Image B&Z&A DNA formula.jpg thumb right 250px The helix axis of A , B , and Z DNA. class ... more details
exon s, with over 50 of human DNA consisting of non coding repeated sequence DNArepetitivesequences ... parts of the same strand of DNA i.e. both strands contain both sense and antisense sequences . In both ... 93 issue 4 pages 664 71 year 2004 pmid 15389973 doi 10.1002 jcb.20252 ref A few DNAsequences in prokaryotes ... 1 12 year 2005 pmid 15680581 doi 10.1016 j.compbiolchem.2004.12.006 ref In these cases, some DNAsequences ... aob mci009 ref However, DNAsequences that do not code protein may still encode functional non coding ... pdb explore explore.do?structureId 1MSW PDB 1MSW ref Some noncoding DNAsequences play structural ...File DNA Structure Key Labelled.png thumb right 340px The structure of the DNA double helix . The atoms ... ADN animation.gif thumb The structure of part of a DNA double helix Deoxyribonucleic acid IPA en di ksi ra b .nju kle . k s d en us Deoxyribonucleic acid.ogg , or DNA , is a nucleic acid that contains ... organism s with the exception of RNA virus es . The main role of DNA molecule s is the long term storage of information . DNA is often compared to a set of blueprint s, like a recipe or a code, since ... s and RNA molecules. The DNA segments that carry this genetic information are called gene s, but other DNAsequences have structural purposes, or are involved in regulating the use of this genetic information. DNA consists of two long polymers of simple units called nucleotide s, with backbone ... is read by copying stretches of DNA into the related nucleic acid RNA, in a process called transcription genetics transcription . Within cells, DNA is organized into long structures called chromosome s. These chromosomes are duplicated before cells cell division divide , in a process called DNA ... most of their DNA inside the cell nucleus and some of their DNA in organelle s, such as mitochondria ... store their DNA only in the cytoplasm . Within the chromosomes, chromatin proteins such as histone s compact and organize DNA. These compact structures guide the interactions between DNA and other proteins ... more details
Infobox animanga Header name DNA image caption ja kanji D N A ja romaji D En Ei Ts Dokoka de Nakushita Aitsu no Aitsu genre Harem genre Harem , Science fiction Infobox animanga Print type manga author Masakazu Katsura publisher Shueisha publisher other flagicon FRA Editions Tonkam br flagicon GER Carlsen Comics br flagicon MEX Grupo Editorial Vid br flagicon ESP Planeta DeAgostini Comics br flagicon BRA Editora JBC demographic Sh nen manga Sh nen magazine Weekly Sh nen Jump first 1993 last 1994 volumes 5 volume list Infobox animanga Video type tv series director Jun ichi Sakata producer writer music studio Madhouse company Madhouse br Studio Deen network Animax , Nippon Television network other flagicon KOR Animax first 7 October 1994 last 23 December 1994 episodes 12 episode list Infobox animanga Video type ova director Jun ichi Sakata producer writer music studio Madhouse company Madhouse br Studio Deen released 1995 runtime episodes 3 episode list Infobox animanga Footer nihongo DNA D N A D En Ei Ts Dokoka de Nakushita Aitsu no Aitsu is a science ... 100 children that carry the Mega Playboy DNA, causing them and all their descendants to each have 100 ... to deal with. Karin reveals to Junta that she is a DNA Operator . Her job is to make alterations in people s DNA that will change their nature for the greater good of society. She intends to shoot the original Mega Playboy with a DCM DNA Control Medicine bullet that will alter his DNA in order ... DCM bullet. However, each time he transforms, his Mega Playboy DNA stabilizes more and more. nihongo Karin Aoi Aoi Karin anime voices Miina Tominaga Jessica Calvello A sixteen year old DNA ... Never Forget You Manga The DNA manga was published in Japanese magazine Weekly Sh nen Jump 1993 No. 36 ... es ca DNA cs DNA de DNA es DNA fr DNA ko DNA id DNA it DNA ja D N A pt DNA ru DNA fi DNA sv DNA tl DNA zh DNA ... more details
infobox website name On Line Encyclopedia of Integer Sequences url http oeis.org oeis.org launch date start date 1996 author Neil Sloane The On Line Encyclopedia of Integer Sequences OEIS , also cited ... of IP in OEIS to The OEIS Foundation Inc. ref OEIS records information on integer sequences of interest ... cited. As of 2011 01 05 it contains over 181,050 sequences, making it the largest database of its kind ... History Neil Sloane started collecting integer sequences as a graduate student in 1965 to support ... from the database in book form twice A Handbook of Integer Sequences 1973, ISBN 0 12 648550 X , containing 2,372 sequences in lexicographic order and assigned numbers from 1 to 2372. The Encyclopedia of Integer Sequences with Simon Plouffe 1995, ISBN 0 12 558630 2 , containing 5,488 sequences ... sequences which may differ in their few initial terms in A Handbook of Integer Sequences as N ... the second publication, mathematicians supplied Sloane with a steady flow of new sequences. The collection ... off from the database work, Sloane founded the Journal of Integer Sequences in 1998. ref http www.math.uwaterloo.ca JIS Journal of Integer Sequences ISSN 1530 7638 ref The database continues to grow at a rate of some 10,000 entries a year. Sloane has personally managed his sequences for almost ... of Integer Sequences ref In 2004, Sloane celebrated the addition of the 100,000th sequence ... date 2010 11 17 author Neil Sloane ref Non integers Besides integer sequences, the OEIS also catalogs sequences of fraction mathematics fraction s, the digits of transcendental number s, complex number s and so on by transforming them into integer sequences. Sequences of rationals are represented by two sequences named with the keyword frac the sequence of numerators and the sequence of denominators ... under representative integer sequences such as decimal expansions here 3, 1, 4, 1, 5, 9, 2, 6, ... OEIS2C ... zeros, e.g. , A315 rather than A000315. Individual terms of sequences are separated by commas. Digit ... more details
SEQUENCES Art Festival is held in the capital of Iceland , Reykjavik . Its emphasis is time based work, performance , sound art , video and music. Concept The aim of the annual independent art festival is to celebrate and exhibit cutting edge visual art with a special emphasis on art in public urban spaces. SEQUENCES features time based art such as performance , video and sound art and creates a cross platform for these art forms as well as music and design. SEQUENCES is the first art festival in Iceland to focus on visual art alone and is an offspring of the dynamic art scene that thrives in Reykjavik . The festival is a venue for young artists to exhibit their work and connect with foreign artists who work in similar or in the same media. More than two hundred artists from around the world have participated in the festival. Along with the artist run galleries, the bigger museums and institutions in Iceland have participated as well Reykjavik Art Museum , i8 , Safn , Gallery Turpentine and The National Museum of Iceland . For SEQUENCES Art Festival in 2008 held October 11 to 17 the curatorial board decided to acknowledge renowned artists for their notable contribution to real time art mediums. The honorary artist of SEQUENCES 2008 was the Icelandic artist R r . The fourth SEQUENCES Art Festival will be held in 2009 October 31 to November 7, 2009 . This years honorary artist will be 80 year old concept art legend Magn s P lsson. Born in East Iceland in 1929, P lsson studied theatre design and art in the early 1950s and became an active participant in Iceland s embryonic avant ... SEQUENCES was initiated in Reykjavik in 2006 at first by artist Brynd s Hr nn Ragnarsd ttir, at the time ... as well as the Center for Icelandic Art CIA.IS . For the first time, the SEQUENCES Festival took place ... Museum External links Official festival website http www.sequences.is SEQUENCES real time art festival ... art news, Issue 11 http www.grapevine.is Art ReadArticle Sequences Festival 2008 The Reykjavik Grapevine ... more details
Unreferenced date January 2009 The regional genes V, D, J , used to generate T cell receptor T cell receptors and Antibody Immunoglobulin molecules , are flanked by Recombination Signal Sequences RSSs that are recognized by a group of enzymes known collectively as the VDJ recombinase. RSSs are composed of seven conserved nucleotides a heptamer that reside next to the gene encoding sequence followed by a spacer containing either 12 or 23 unconserved nucleotides followed by a conserved nonamer 9 base pairs . The RSSs are present on the Directionality molecular biology 3 side downstream of a V region and the Directionality molecular biology 5 side upstream of the J region. These are the sides that will be involved in the joining. Only a pair of dissimilar spacer RSSs are efficiently genetic recombination recombined i.e. one with a spacer of 12 nucleotides will be recombined with one that has a spacer containing 23 nucleotides . This is known as the 12 23 rule of recombination or the one turn two turn rule . See also VDJ recombination Category Immune system immunology stub ... more details
A G del numbering for sequences provides us an effective way to represent each finite sequence of natural numbers as a single natural number. Of course, the Injective function embedding is surely possible set theoretically, but the emphasis is on the effectiveness of the functions manipulating such representations of sequences the operations on sequences accessing individual members, concatenation can be implemented using total recursive function s. It is usually used to build sequential data type s in the realm of arithmetic based formalizations of some fundamental notions of mathematics. It is a specific case of the more general idea of G del numbering . E.g. Mu recursive function recursive ... G del numbering is a sweeping idea that can be used to not only encode unique sequences of symbols ... with the sequences but also to encode whole architectures of sophisticated machines . For example ... of algorithms. Accessing members We expect from any such representation of sequences that we can get ... directly even if we want to handle sequences of different length, we can store length data as a surplus ... an encoding scheme for sequences, but we have to fill in some gaps yet. These are related notions ... recursive. Access of length If we use the above scheme for encoding sequences only in contexts where the length of the sequences is fixed, then no problem arises. In other words, we can use them in an Analogy ... sequences, or we need to deal with sequences whose length cannot be Typeful programming type d in a static way. In other words, we may encode sequences in an analogous way as we use List computing ..., then the each row in matrix of the program can be represented with tuples, sequences of fixed length ... machine, then we have to represent sequences together with their length. Moreover, we can mimic dynamically stretching sequences by representing sequence concatenation or at least, augmenting a sequence ... DEFAULTSORT Godel Numbering For Sequences Category Computability theory Category Articles containing ... more details
refimprove date January 2009 update date November 2010 The Bill The Bill s title sequences have varied greatly over the 26 years it has been on air. Woodentop The series started as an episode for ITV as part of its Storyboard strand of one off dramas entitled Woodentop The Bill Woodentop . The episode began with the regular Storyboard title sequence and an introductory scene with PC Jim Carver which was followed by the title caption of the episode. gallery Image Storyboard Caption.jpg The title sequence for ITV s Storyboard strand of one off dramas Image Woodentop Caption.jpg The title caption for the Woodentop The Bill Woodentop episode gallery Opening Credits Image The Bill S1 Caption.jpg left thumb The title caption from series 1 The first series in 1984 has its own unique title sequence, featuring images of the feet of two uniformed officers walking towards the camera interspersed with shots of the streets of Sun Hill. Then the camera zooms in on the male officer s helmet and the title of the show appears, followed by the credit devised by Geoff McQueen . Image The Bill S2 Caption.jpg right thumb The title caption from Series 2 6 For the second series in 1985, the titles were completely changed now, they began with a shot of the Area Car approaching the camera with blue light flashing and siren wailing, and then its tyres screeching as the music began the camera would end up with a close up on the blue light atop the car. Two second filtered action shots of various members of the cast were then shown, interspersed with images of the blue light. The Bill and Devised by Geoff ... title sequences were created with specially filled footage one for episodes that took place during the day ... at the same time. In both title sequences, Cryer looks up for the camera. In 1998, in the second major ... Cryer was always the last person shown in the title sequences. These are his actions depicted. class ... . References Reflist The Bill Use dmy dates date October 2010 DEFAULTSORT The Bill Title Sequences ... more details
with the standard sequences, instead opening with a recap of the previous episode, Once Upon a Time ... Use British English date August 2010 DEFAULTSORT Opening And Closing Sequences Of The Prisoner Category The Prisoner Category Film and television opening sequences Prisoner ... more details
DNA synthesis commonly refers to DNA replication DNA biosynthesis in vivo DNA amplification Polymerase chain reaction enzymatic DNA synthesis in vitro DNA amplification Oligonucleotide synthesis chemical synthesis of nucleic acids Gene synthesis physically creating artificial gene sequences disamb ... more details
DNADNA hybridization generally refers to a molecular biology technique that measures the degree of genetic similarity between pools of DNAsequences. It is usually used to determine the genetic distance ... The DNA of one organism is labeled, then mixed with the unlabeled DNA to be compared against. The mixture is incubated to allow DNA strands to dissociate and reanneal, forming hybrid double stranded DNA. Hybridized sequences with a high degree of similarity will bind more firmly, and require more energy to separate them i.e. they separate when heated at a higher temperature than dissimilar sequences, a process known as DNA melting . To assess the melting profile of the hybridized DNA, the double stranded DNA is bound to a column and the mixture is heated in small steps. At each step, the column is washed sequences that melt become single stranded and wash off the column. The temperatures at which labeled DNA comes off the column reflects the amount of similarity between sequences and the self ... molecular systematics . Charles Sibley and Jon Ahlquist , pioneers of the technique, used DNADNA hybridization ... by DNADNA Hybridization author C.G. Sibley and J.E. Ahlquist journal Journal of Molecular ... differences between orthologous sequences between organisms is overwhelmed by the hybridization of paralogous sequences within an organism s genome. ref http personal.uncc.edu jmarks DNAHYB Dnahyb2.html DNA hybridization in the apes Technical issues ref DNA sequencing and computational comparisons of sequences is now generally the method for determining genetic distance, although the technique ... DNADNA hybridization to study complex microbial ecosystems author S.S. Socransky, A.D. Haffajee ... . Fundamentals of Molecular Evolution. a good text on these topics See also DNA melting Temperature gradient gel electrophoresis Category Molecular biology Category DNA fr Hybridation de l ADN hu DNS DNS hibridiz ci nl DNADNA hybridisatie ja DNADNA pt Hibridiza o de DNADNA sv DNADNA hybridisering ... more details
Unreferenced stub auto yes date December 2009 Orphan date December 2009 Spacer DNA are regions of non transcribed DNA between tandemly repeated gene s, such as ribosomal RNA genes in eukaryote s. Its function most likely involves ensuring the high rates of transcription associated with these genes. In bacteria, spacer DNAsequences are only a few nucleotides long. In eukaryotes, they can be extensive and include repetitiveDNA, comprising the majority of the DNA of the genome. The term is used particularly for the spacer DNA between the many tandemly repeated copies of the ribosomal RNA genes. DEFAULTSORT Spacer Dna Category Genetics Genetics stub ... more details
DNA isolation is a routine procedure to collect DNA for subsequent molecular biology molecular or forensics forensic analysis. There are three basic and one optional steps in a DNA extraction Breaking the Cell biology cells open, commonly referred to as cell disruption or cell lysis , to expose the DNA ... done . Precipitating the DNA with an alcohol &mdash usually ice cold ethanol or isopropanol . Since DNA is insoluble in these alcohols, it will aggregate together, giving a pellet upon centrifugation ... prevents enzymes like DNAse from degrading the DNA. Cellular and histone proteins bound to the DNA ... mixture prior to the DNA precipitation. If desired, the DNA can be resolubilized in a slightly alkaline buffer or in ultra pure water. for the various methods Nucleic acid methods Detecting DNA main Quantification of nucleic acids A diphenylamine DPA indicator will confirm the presence of DNA. This procedure involves chemical hydrolysis of DNA when heated e.g. 95 C in acid, the reaction requires a deoxyribose sugar and therefore is specific for DNA. Under these conditions, the 2 deoxyribose ... a blue colored compound. DNA concentration can be determined measuring the intensity of absorbance ... DNA concentrations. Measuring the intensity of absorbance of the DNA solution at wavelengths Quantification of nucleic acids 260 nm and 280 nm is used as a measure of DNA purity. DNA absorbs UV light at 260 and 280 nanometres, and aromatic proteins absorb UV light at 280 nm a pure sample of DNA has the 260 280 ratio at 1.8 and is relatively free from protein contamination. A DNA preparation that is contaminated with protein will have a 260 280 ratio lower than 1.8. DNA can be quantified by cutting the DNA with a restriction enzyme , running it on an agarose gel electrophoresis gel , staining with ethidium bromide or a different stain and comparing the intensity of the DNA with a DNA marker of known concentration. Using the Southern blot technique, this quantified DNA can be isolated ... more details
molecular biology research for generating Recombinant DNA recombinant DNAsequences. For example, DNA ...Refimprove date February 2007 enzyme Name DNA ligase EC number 6.5.1.1 CAS number 9015 85 4 IUBMB EC number 6 5 1 1 GO code 0003910 image DNA Ligase.jpg width caption DNA ligase I protein Name ligase I, DNA, ATP dependent caption image width 200 HGNCid 6598 Symbol LIG1 AltSymbols EntrezGene 3978 OMIM ... Name ligase III, DNA, ATP dependent caption image width HGNCid 6600 Symbol LIG3 AltSymbols EntrezGene ... LocusSupplementaryData q12 protein Name ligase IV, DNA, ATP dependent caption image width HGNCid 6601 ... 13 Arm q Band 33 LocusSupplementaryData q34 In molecular biology , DNA ligase is a special ... in double stranded DNA molecules, in simple words strands that have double strand break a break in both complementary strands of DNA . Purified DNA ligase is used in gene cloning to join DNA ... type of DNA ligase using the Complementary DNA complementary strand as a template Citation needed date April 2010 but still requires DNA ligase to create the final phosphodiester bond to fully repair the DNA. DNA ligase has applications in both DNA repair and DNA replication see DNA ligase Mammalian ligases Mammalian ligases . In addition, DNA ligase has extensive use in molecular biology laboratories for Genetic recombination experiments see DNA ligase Applications in molecular biology research Applications in molecular biology research . Ligase mechanism The mechanism of DNA ligase is to form ... and the 3 hydroxyl of the acceptor. ref name pmid4377758 cite journal author Lehman IR title DNA ligase ... a ligase works with DNA end sticky end s Image Ligation.svg 400px Ligase will also work with DNA end ... ligases This section is linked from DNA ligase In mammals, there are four specific types of ligase. LIG1 DNA ligase I ligates the nascent DNA of the Replication fork Lagging strand lagging strand after the DNA polymerase I has removed the RNA primer from the Okazaki fragment s. DNA ligase ... more details
DNA shuffling is a way to rapidly propagate beneficial mutation s in a directed evolution experiment. It is used to rapidly increase DNA library size. ref http www.sciencemag.org cgi content full 293 5528 237?ijkey MAy6Zxe5PJ3u2&keytype ref&siteid sci Science AAAS Science Magazine Sign In Bot generated title ref Procedure DNAse I is first used to fragment a set of parent gene s into pieces of 50 100 base pair bp in length. This is then followed by a polymerase chain reaction PCR without primers DNA fragments with sufficient overlapping homologous sequence will anneal to each other and are then extended by DNA polymerase . Several rounds of this PCR extension are allowed to occur, after some of the DNA molecules reach the size of the parental genes. These genes can then be amplified with another PCR, this time with the addition of Primer molecular biology primers that are designed to complement the ends of the strands. The primers may have additional sequences added to their 5 ends, such as sequences for restriction enzyme recognition sites needed for ligation into a cloning vector. It is possible to recombination recombine portion of these genes to generate hybrids or Chimera genetics chimeric forms with unique properties, this is called DNA shuffling. Shuffling methods Restriction enzymes Restriction enzyme s that cut in similar places are used to digest members of the gene family DNA fragments are joined together with DNA ligase Large numbers of hybrid biology hybrids are produced which can be tested for unique properties DNase 1 Different members of the gene family are fragmented using DNase 1 followed by PCR During PCR different members of the family are cross primed, DNA ... generate a DNA library library of mutants which are tested for unique properties See also SCOPE protein engineering RACHITT Homologous recombination References references DEFAULTSORT Dna Shuffling Category DNA biochem stub genetics stub molecular biology stub es Barajado de ADN ... more details
, mtDNA whilst only inherited maternally, mt DNA is found in both men and women. DNA Solutions sequences ...Multiple issues wikify June 2010 orphan June 2010 lead missing July 2010 History DNA Solutions is a DNA ... Muir B.Sc. in 1996, and incorporated in 1998. DNA Solutions created the home paternity kit in 1997, which was a new concept where people for the first time could take samples for DNA testing at home, instead ... in 1998. These home testing kits have since revolutionized DNA testing, Citation needed date July 2010 and the industry has subsequently adopted DNA Solutions terminology of using home kit and home paternity kit a term now used by virtually all DNA testing companies and laboratories for the use at home DNA testing services. This new type of DNA testing led to a great deal of controversy, especially ... calling for a ban of DNA Solutions s services due to issues of privacy and consent. ref http ... 0414 2968 Australian newspaper, The Age , report on call for ban of the new DNA tests, year 2000 ... 0010 02 pappa.html Sweden s national newspaper Aftonbladet reports on DNA Solutions new tests. ref Over the next decade while DNA testing kits were being adopted by most DNA laboratories, DNA Solutions ... story 15478 Russian newspaper reports on the do it yourself DNA tests hitting Russia in 2005 ref ref ... of these new DNA tests ref ref http www.hanwoodna.com.cn Chinese website ref In 2007, DNA Solutions ... of wild elephants remaining in the wild. ref http www.theage.com.au news national dna key in dung deal ... DNA profiling project ref In 2008, DNA Solutions won the tender to store DNA samples for the Australian Military and at the same time launched a service to store DNA samples for the public. ref http www.theage.com.au national victorian company extends dna database service for military personnel to civilians 20080612 2pob.html Australian newspaper report on DNA Solutions DNA storage for the Australian Military ref DNA testing Y Chromosome DNADNA Solutions offers the analysis of Y DNA for identification ... more details
DNA origami is the nanoscale folding of DNA to create arbitrary two and three dimensional shapes at the nanoscale . The specificity of the interactions between Complementarity molecular biology complementary base pairs make DNA a useful construction material through design of its base sequences. Developed by Paul Rothemund at the California Institute of Technology , the process involves the folding of a long single strand of virus viral DNA aided by multiple smaller staple strands. These shorter strands bind the longer in various places, resulting in various shapes including a smiley face and a coarse map of China and Americas the Americas , along with many three dimensional structures such as cubes. To produce a desired shape, images are drawn with a Raster graphics raster fill of a single long DNA molecule . This design is then fed into a computer program which calculates the placement of individual staple strands. Each staple binds to a specific region of the DNA template, and thus due to Watson Crick base pair Watson Crick base pairing the necessary sequences of all staple strands are known and displayed. The DNA is mixed and then heated and cooled. As the DNA cools the various ... including atomic force microscopy , or fluorescence microscopy when DNA is coupled to fluorescent ... self assembly of materials. Though DNA is not the natural choice for building active ... computing. DNA origami was the cover story of Nature journal Nature on March 16, 2006. See also DNA nanotechnology Molecular self assembly Folding home References cite journal last Rothemund first Paul W. K. authorlink Paul W. K. Rothemund year 2006 month title Folding DNA to create nanoscale shapes ... pmid 16541064 doi 10.1038 nature04586 cite journal doi 10.1002 cphc.200600260 pmid 16832805 title DNA ... 8 pages 1641 http news.bbc.co.uk 2 hi technology 8204906.stm DNA organises itself on silicon &ndash BBC News 2009 08 17 Category DNA nanotechnology Biochem stub nano tech stub ... more details
Satellite DNA consists of very large arrays of tandemly arrayed genes tandemly repeating, non coding DNA . Satellite DNA is the main component of functional centromeres , and form the main structural constituent of heterochromatin . ref cite book author Knight, Julian C. title Human Genetic Diversity Functional Consequences for Health and Disease publisher Oxford University Press year 2009 isbn 9780199227693 ... 000031999 satellite DNA ref The name satellite DNA refers to how repetitions of a short DNA sequence ... , and thus have a different density from bulk DNA such that they form a second or satellite band when genomic DNA is separated on a Density Gradient density gradient . citation needed date January 2011 Types of satellite DNA Satellite DNA, together with minisatellite and Microsatellite genetics microsatellite DNA, constitute the tandem repeats . citation needed date January 2011 Some types of satellite DNA in humans are class wikitable Type Size of repeat unit bp Location alphoid DNA 171 All ... 3 5 Most chromosomes Length A repeated DNA motif pattern can be between 1 base pair long a mononucleotide repeat to several thousand base pairs long, and the total size of a satellite DNA block can be several megabases without interruption. Most satellite DNA is localized to the telomeric or the centromeric ... DNA is a short region 1 5kb of 20 50 repeats. The difference in how many of the repeats is present in the region length of the region is the basis for DNA fingerprinting . citation needed date January 2011 Origin Satellite DNA, at least the microsatellite variety, is thought to have originated ... cite book author Beridze, Thengiz title Satellite DNA publisher Springer Verlag year 1986 isbn 978 ... books.google.com books?id MPkwi i33zYC&pg PA53 External links MeshName Satellite DNA Repeated sequence DEFAULTSORT Satellite Dna Category RepetitiveDNAsequences de Satelliten DNA fr ADN satellite he DNA sv Satellit DNA tr Satelit DNA ... more details
Not to be confused with the book The Selfish Gene . Selfish DNA refers to those sequences of DNA which, in their purest form, have two distinct properties 1 the DNA sequence spreads by forming additional copies of itself within the genome and 2 it makes no specific contribution to the reproductive success of its host organism . This idea was sketched briefly by Richard Dawkins in his 1976 book The Selfish Gene and was explicitly exposed in two 1980 articles in Nature magazine. According to one of these articles quotation The theory of natural selection, in its more general formulation, deals with the competition between replicating entities. It shows that, in such a competition, the more efficient replicators increase in number at the expense of their less efficient competitors. After a sufficient time, only the most efficient replicators survive. L.E. Orgel & F.H.C. Crick Selfish DNA the ultimate parasite The selfish DNA can be considered an efficient replicator that follows another way of increasing in number. Examples Transposon s copy themselves to different locus genetics loci inside the genome. These elements constitute a large fraction of eukaryotic genome size s C value s about 45 of the human genome is composed of transposons and their defunct remnants. Homing endonuclease gene s cleave DNA at its own site on the homologous chromosome , triggering the DNA repair Double strand breaks DNA double stranded break repair system, which repairs the break by copying the HEG onto the homologous chromosome. HEGs have been characterized in yeast , and can only survive by passing between multiple isolated populations or species. Supernumerary B chromosome s are nonessential chromosomes that are transmitted in higher than expected frequencies, which leads to their accumulation ... & Crick , F.H.C. 1980 Selfish DNA the ultimate parasite. Nature, 284, 604 607. Category DNA Category Selection he DNA pl Samolubny DNA zh DNA ... more details
DNA demethylation is a process of removal of methyl group from nucleotide in DNA . DNA demethylation could be passive and active. Passive process takes place in the absence of methylation of newly Chemical synthesis synthesised DNA strands by DNMT1 during several replication rounds for example, upon 5 Azacytidine treatment . Active DNA demethylation occurs via active dismiss of methyl group. Examples of active DNA demethylation All the cases of DNA demethylation could be divided on global genome wide and specific when just specific sequences are demethylated . The genome wide DNA demethylation occurs 1 in mammals a in male pronucleus of zygote immediately after fertilization b possibly in the primordial germ cells PGCs of 11.5 12.5 day old embryos 2 possibly in amphibia during midblastula transition Examples of specific DNA demethylation 1 gene imprinting during plant reproduction Possible mechanisms of active DNA demethylation There was proposed several hypothetical mechanisms of active DNA demethylation 1 direct removal of methyl group. This process has quite low thermodynamic probability. 2 removal of methylated base either by direct removal of methylcytosine , or through cytosine deamination followed by removal of thymine from thymine guanosine mismatch , followed by insertion of unmethylated one using base excision repair machinery BER . 3 removal of entire DNA patch and following filling it with new nucleotides by nucleotide excision repair NER . Category Molecular biology ... more details
of DNA interstrand crosslinks in human cells,EMBO reports 6, 6, 551 557 2005 . ref The crosslinking reaction by Psoralens targets TA sequences intercalating in DNA and linking one base of the DNA ...Crosslinks in DNA occur when various exogenous or endogenous agents react with two different positions in the DNA. This can either occur in the same strand intrastrand crosslink or in the opposite strands of the DNA interstrand crosslink . Crosslinks also occur between DNA and protein . DNA replication is blocked by crosslinks, which causes replication arrest and cell death if the crosslink is not DNA ... to DNA interstrand crosslinking agents and interaction with RAD51C journal Mutagenesis volume 20 ... cgi pmidlookup?view long&pmid 16236763 ref Agents that Crosslink DNA I. Exogenous ... with DNA at N7 position of guanine on the opposite strands forming interstrand crosslink. ref name ... bis 2 chloroethyl 1 nitrosourea and cisplatin induced total genomic DNA interstrand crosslinks in human ... pmid 7767897 doi url ref Cisplatin cis diamminedichloroplatinum II and its derivative forms DNA cross links as monoadduct, interstrand crosslink, intrastrand crosslink or DNA protein crosslink. Mostly ... mer DNA duplex journal Proc. Natl. Acad. Sci. U.S.A. volume 93 issue 15 pages 7606 11 year 1996 ... title Persistence of cisplatin induced DNA interstrand crosslinking in peripheral blood mononuclear ... acid formed in the stomach dietary source nitrites. It induces formation of interstrand DNA crosslink at amino group of exocyclic N sup 2 sup of guanine at the CG sequences. Reactive chemicals such as malondialdehyde ... exhaust can form DNA interstrand crosslinks in DNA. Guanine adducts of DNA can also react with protein. A Schiff base formation between protein and aldehyde causes this DNA protein interstrand link Formaldehyde HCHO induces protein DNA and protein protein crosslinks, and is a common reagent ... 1AIO Interactive structure for cisplatin and DNA adduct formation PDB 204D Interactive structure ... more details
Encyclopedia
top
