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Nucleotide in Biological Dictionary

Nucleotide

A nucleotide is composed of a nucleobase (nitrogenous base) and a five-carbon ... Nucleic acids are polymeric macromolecules made from nucleotide monomers. ... nucleotide n. Any of various compounds consisting of a nucleoside combined with a phosphate group and forming the basi...

VNTR

... A Variable Number Tandem Repeat (or VNTR ) is a location in a genome where a short nucleotide sequence is organized as a tandem repeat. These can be found on many chromosomes, and often show variations in length between... VNTR alleles...

UvrA

...ative aminopeptidase gene (pepP) ... Here we suggest that uvrA and the nucleotide excision repair pathway are ... groups, it was necessary to inactivate the uvrA dependent nucleotide excision repair gene. ... mutant strain deficient in alkA tagA and uvrA...

Uracil

...out uracil at Encyclopedia.com. ... uracil , organic base of the ... nucleotide derivatives of uracil perform important functions ... uracil DNA N-...ree ... News Scan: ==> Uracil News <== Genetics101 News ... The nucleotide derivatives of uracil perform important functions in cellular ... Since ...

Untranslated region

...ranslated region ... ... based predictions of secondary structure of the 3' untranslated region (UTR) ... 4 vaccine candidate with a 30 nucleotide deletion in its 3'- untranslated region . ... ... the 5'- untranslated region (-575) of the p27 gene and (b) the antibiotic ... The -57...

Transversion

...rsion : Webster's Revised Unabridged, 1913 Edition ... Quick definitions ( transversion ) ... The G-to-T transversion , although affecting the 11 nucleotide of the 3' ... These results indicated that the GT transversion at the first position of exon 5 ... ... of tools for the Oracle world: the sche...

Transcription unit

... Transcription is the synthesis of RNA under the direction of DNA. RNA synthesis, or transcription , is the process of transcribing DNA nucleotide sequence information into RNA sequence information. Both nucleic acid sequences... JAVS TU-50 Transcription Unit . T R A N S C R I P T I ...

Transcription start site

...n Factors Transcription factors are protein complexes that help RNA ... nucleotides upstream from the transcription start site (T is the nucleotide ... Transcription Binding Tools. Transcription Start Site Prediction. Prokaryote Promoters ... Eponine - Transcription Start Site fi...

Transcription

... Transcription is the synthesis of RNA under the direction of DNA. RNA synthesis, or transcription , is the process of transcribing DNA nucleotide sequence information into RNA sequence information. Both nucleic acid sequences... Transcription (genetics), the copying of DNA into me...

Thymine

...ived by methylation of uracil at the 5th carbon. ... Thymine was the first pyrimidine to be purified from a natural source, having ... The nucleotide derivatives of thymine do not exhibit as much activity as ... Encyclopedia information on Thymine ... Design, synthesis and characterization o...

Termination codon

... In the genetic code, a stop codon is a nucleotide triplet within messenger RNA that signals a termination of translation. Proteins are unique sequences of amino acids, and most codons in messenger ...

Tandem repeat sequence

...r VNTR) is a location in a genome where a short nucleotide sequence is organized as a tandem repeat . The...epeat sequences . Definition(s) The length of a nucleotide sequence that is repeated in a tandem cluster...t. Wednesday, August 12, 2009 ... genetics > nucleotide sequences > repetitive sequences > tan...

Tandem repeat sequences

...dem repeat . variable number tandem repeat . nucleotide sequences . Microsatellite. Minisatellite ... ...st. Wednesday, August 5, 2009 ... genetics > nucleotide sequences > repetitive sequences > tan...epeat sequences . Definition(s) The length of a nucleotide sequence that is repeated in a tandem cluster...

Structural gene

...e inheritance of the Rh system probably depends on the existence of operator genes, which turn the... An operon is a functioning unit of key nucleotide sequences of DNA including an operator, a common promoter, and one or more structural genes, which is controlled as a unit to produce messenger RNA...

Stop codon

... In the genetic code, a stop codon is a nucleotide triplet within messenger RNA that signals a termination of translation. Pr... codon ... Stop ! Codon . In the genetic code, a stop codon is a nucleotide triplet within messenger RNA ... the premature termination codon in thet...

SnRNA

...h nuclear export signal receptor ... In this way these five proteins and a U snRNA assemble into the export complex. ... Arrows indicate the nucleotide changes in Xenopus U2 snRNA . ... Lanes 2 and 5 are U2-depleted oocytes supplemented with synthetic U2 snRNA . ... Cell death and differentia...

Silent Mutation

...t mutation is often used interchangeably with the phrase synonymous mutation ; however, synonymous... In biology, mutations are changes to the nucleotide sequence of the genetic material of an organism. Mutations can be caused by copying errors in the genetic material during cell division, by e...

Sequencing

...term DNA sequencing refers to methods for determining the order of the nucleotide bases, adenine, guanine, cytosine, and thymine, in a molecule of DNA. Th...sequenced completely. DNA sequencing involves determining the linear nucleotide order of a segment of DNA. There are several methods of sequencing , ...

Sequence Polymorphism

... other DNA sequence , allowing its ... single nucleotide polymorphism ( ¦siŋgəl ¦nüklēə′tīd ′pälē′mörfizəm ) ... nucleotide polymorphism in this gene that may affect the...ing in the other, this can prevent ... A Single nucleotide Polymorphism , or SNP (pronounced "snip"), is a s...

Sequence homology

... homology in which the scoring system is the same as for conventional ... EBI Tools: Homology and Similarity: blast, fasta, MPsrch, scanps ... nucleotide sequence similarity searching against the Ligand Gated Ion Channel ... sitive and fast sequence homology search algorithms outside of the r...

S1 nuclease

...onally introduce single-stranded breaks in double-stranded... A nuclease is an enzyme capable of cleaving the phosphodiester bonds between the nucleotide subunits of nucleic acids. Older publications may use terms such as "polynucleotidase" or "nucleodepolymerase". What is S1 ...

RNA editing

...ing as an RNA editing enzyme is not yet known. ... RNA editing ( ¦är¦en¦ā ′edədiŋ ) ( cell and molecular biology ) Alteration in the nucleotide sequence of messenger RNA after it RNA editing . Simpson L, Emeson RB. ... RNA editing is a term describing a variety of novel mechan...

RNA

... Transcription is the synthesis of RNA under the direction of DNA. RNA synthesis, or transcription, is the process of transcribing DNA nucleotide sequence information into RNA sequence information. Both nucleic acid sequences... In living cells, RNA in different configurations fulfil...

Ribonucleotides

... A ribonucleotide is a nucleotide in which a purine or pyrimidine base is linked to a ribose molecule....often used where a food already contains natural... ribonucleotide n. A nucleotide that contains ribose as its sugar and ... Ribonucleotides have one, two,...

Ribonucleic acid

... of molecule that consists of a long chain of nucleotide units. Each nucleotide consists of a nitrogenous base, a ribose sugar, a...bonucleic acid or RNA is a polymer or chain of nucleotide units, each ... Encyclopedia article about Ri...

Ribonuclease

...tions, thesaurus, Word of the Day, and word games. ribonuclease n. Any of various enzymes that break down RNA. Also called RNase. ... How many nucleotide pairs in the DNA for the enzyme Ribonuclease ? ... Ribonuclease inhibitor Top view of porcine ribonuclease inhibitor (PDB accesion code 2...

RFLP

...is a method used by ... Screening for a RFLP "marker" DNA "fingerprinting" Short Tandem Repeats (STRs) ... In this example, a change of a single nucleotide produced the RFLP . ... RFLP is a genetic variation that can be detected by emzymatic digestion ... RFLP , as a molecular marker, is speci...

Restriction enzymes

... A restriction enzyme is an enzyme that cuts double-stranded or single stranded DNA at specific recognition nucleotide sequences known as restriction sites. Such enzymes , found in bacteria and archaea, are thought to have... restriction enzyme n. Any of a...

Restriction enzyme

... A restriction enzyme is an enzyme that cuts double-stranded or single stranded DNA at specific recognition nucleotide sequences known as restriction sites. Such enzymes, found in bacteria and archaea, are thought to have... a protein produced by bacteria t...

Restriction site

...tween two nucleotides within its... A restriction enzyme is an enzyme that cuts double-stranded or single stranded DNA at specific recognition nucleotide sequences known as restriction sites. Such enzymes, found in bacteria and archaea, are thought to have... How Can I Add a Site to Internet E...

Restriction

... A restriction enzyme is an enzyme that cuts double-stranded or single stranded DNA at specific recognition nucleotide sequences known as restriction sites. Such enzymes, found in bacteria and archaea, are thought to have... ... of function used in the context...

Reading frame

...ons of popular ... Online Medical Dictionary and glossary with medical definitions ... Reading frame : One of the three possible ways to read a nucleotide sequence in ... The ORF Finder (Open Reading Frame Finder) is a graphical analysis tool which finds all open reading frames of a selecta...

Pyrimidine

... pyrimidine biosynthesis. ... Pyrimidine biosynthesis. v • d • e ... nucleotide metabolism: Purine metabolism · nucleotide salvage · Pyrimidine metabolism ... Pyrimidine Catabolism. De no...

Pseudorevertant

... ... growth medium of the pseudorevertant lines induced adenine salvage to ... The SUX1 pseudorevertant strain was found to carry a single nucleotide ... The MTF1 gene in the SUX3 pseudorevertant , compared with the parental W303/A/520 ... NewsRx is the leading source of news and information ...

Pseudoknot

... The structure of this pseudoknot is unusual. ... The 3D-modeling of pseudoknot topologies shows that such loops do not cross any ... ( B) The nucleotide sequence of the RNA pseudoknot co-crystallized with RT. ... Figure 2 Electron density maps of HIV-1 RT complexed with the RNA pseudoknot . ... ...

Prophage

...replicated as part of the host chromosome. ... Prophage -like elements in bifidobacteria: insights from genomics, transcription, ... Complete nucleotide sequence of the prophage VT1-Sakai carrying the Shiga toxin ... Prophage Finder initially uses BLASTX to compare input DNA sequences to a .....

Primary Structure

...lymer to a large extent determines ... We have divided primary structure into three sections, located below, which ... Primary Structure . • nucleotide Building Blocks ... 2. The Primary Structure of Peptides ... If the primary structures of these fragments are known, it is sometimes possib...

Pribnow box

...ormation on Pribnow from Biology-Online.org dictionary. ... See: pribnow box . ... The Pribnow Box sits 5-8 bases upstream of ... ... nucleotide sequences > regulatory sequences > promoter regions > Pribnow box ... Resources in Pribnow box : No resources available for this ca...

Polymorphisms

...enetic Polymorphisms and Variations... Single nucleotide Polymorphisms . What is SNPs? Single nucleotide Polymorphisms (SNPs) represent a natural genetic...ronmental Genome Project, enzymes ... Single nucleotide polymorphisms are minor alterations in the gene...

Polynucleotide Kinase

...e Pnkp. Represented by 235 ESTs from 111 cDNA libraries. ... Mus musculus polynucleotide kinase 3'- phosphatase, mRNA (cDNA clone IMAGE: ... nucleotide kinase activity. • polynucleotide 3'-phosphatase activity ... XRCC1 stimulates polynucleotide kinase by enhancing its damage discrimination .....
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