Phosphate esters of nucleosides. The metabolic precursors of nucleic acids are monoesters with phosphate on carbon 5 of the pentose (known as 5' to distinguish sugar from base numbering). However many other structures, such as adenosine 3'5'-cyclic monophosphate (cAMP), and molecules with 2 or 3 phosphates are also known as nucleotides. See Table N2.
(Learning Modules / Biology / DNA / Glossary) The building blocks of DNA and RNA, which are both polynucleotides (polymers of nucleotides). Each nucleotide, in turn, is made up of a 5 carbon sugar (deoxyribose in DNA, ribose in RNA), a phosphoric acid and an organic base (adenine, thymine, cytosine or guanine in DNA; adenine, uracil, cytosine or guanine in RNA)...
(Variation and inheritance) a molecule built from a nitrogenous base (base containing nitrogen), a 5-carbon sugar (a pentose sugar) and a phosphate group
an individual unit of a nucleic acid, composed of a nucleic acid base bonded to a ribose or deoxyribose sugar molecule which is itself bonded to one, two or three phosphate groups. the building blocks of dna and rna.
Organic compound composed of a sugar, a phosphate and a base. Two nucleotides joined crosswise by specific pairings of the bases make one rung in the DNA molecule's double helix 'ladder.'
Type: Term Pronunciation: nū′klē-ō-tīd Definitions: 1. Originally a combination of a (nucleic acid) purine or pyrimidine, one sugar (usually ribose or deoxyribose), and a phosphoric group; by extension, any compound containing a heterocyclic compound bound to a phosphorylated sugar by an N-glycosyl link (adenosine monophos...Found on http://www.medilexicon.com/medicaldictionary.php?t=61296
unit from which nucleic acids are constructed by polymerization. It contains a sugar, a phosphate group, and an organic base. ATP is a nucleotide.Found on http://www.ucmp.berkeley.edu/glossary/glossary_3.html
A building block of DNA and RNA, consisting of a nitrogenous base, a five-carbon sugar, and a phosphate group. Together, the nucleotides form codons, which when strung together form genes, which in turn link to form chromosomes. (See Chromosome, Codon, Complementary nucleotides, Dideoxynucleotide, DNA, Gene, Oligonucleotide, RNA.)Found on http://www.encyclo.co.uk/local/20095
- a phosphoric ester of a nucleosideFound on http://www.webdictionary.co.uk/definition.php?query=nucleotide
Compare with nucleoside. A molecule which is a basic building block of nucleic acids and which plays a key role in energy transfer in biochemical reactions. Nucleotides consist of a five-carbon sugar, a heterocyclic nitrogen-containing organic base, and a phosphate group. Found on http://antoine.frostburg.edu/chem/senese/101/glossary/n.shtml
A nucleotide is a nucleoside in which the primary hydroxy group of either 2-deoxy-D-ribose or of D-ribose is esterified by orthophosphoric acid. (See also nucleoside).Found on http://www.chem.qmul.ac.uk/iupac/medchem/ix.html
Nucleotide: A subunit of DNA or RNA. To form a DNA or RNA molecule, thousands of nucleotides are joined in a long chain. Each nucleotide is divided into three parts (with apologies to Caesar): A nitrogenous base (A, G, T, or C in DNA; A, G, U, or C in RNA), A phosphate molecule, and A sugar molecule (deoxyribose in DNA and ribose in RNA). A DNA oli...Found on http://www.medterms.com/script/main/art.asp?articlekey=4596
<biochemistry> Phosphate esters of nucleosides. The metabolic precursors of nucleic acids are monoesters with phosphate on carbon 5 of the pentose (known as 5' to distinguish sugar from base numbering). ... However many other structures, such as adenosine 3'5' cyclic monophosphate (cAMP) and molecules with 2 or 3 phosphates are also called nu...Found on http://www.encyclo.co.uk/local/20973
a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)Found on http://wordnetweb.princeton.edu/perl/webwn?s=nucleotide
(noo´kle-o-tīd) any of a group of compounds obtained by hydrolysis of nucleic acids, consisting of a purine or pyrimidine base linked to a sugar (ribose or deoxyribose), which in turn is esterified with phosphoric acid. cyclic nucleotides those in which the phosphate group bonds to t...Found on http://www.encyclo.co.uk/local/21001
any member of a class of organic compounds in which the molecular structure comprises a nitrogen-containing unit (base) linked to a sugar and a ... [18 related articles]Found on http://www.britannica.com/eb/a-z/n/61
A subunit of DNA or RNA consisting of a nitrogenous base (adenine, guanine, thymine, or cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate molecule, and a sugar molecule (deoxyribose in DNA and ribose in RNA). Thousands of nucleotides are linked to form a DNA or RNA molecule. See DNA, base pair, RNA.Found on http://linkage.rockefeller.edu/wli/glossary/genetics.html
A subunit of DNA or RNA consisting of a nitrogenous base (adenine, guanine, thymine, or cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate molecule, and a sugar molecule (deoxyribose in DNA and ribose in RNA). Thousands of nucleotides are linked to form a DNA or RNA molecule.Found on http://www.ornl.gov/sci/techresources/Human_Genome/glossary/glossary.shtml
A nucleoside to which a phosphate group is attached at the 5' position on the sugar. Nucleotides are organic chemicals of central importance in the chemistry of life. Some provide the basic molecular units for the synthesis of more complex molecules, notably the nucleic acids – DNA and RNA; ot...Found on http://www.daviddarling.info/encyclopedia/N/nucleotide.html
nucleotide (nOO'klēutīd", nyOO'–) , organic substance that serves as a monomer in forming nucleic acids. Nucleotides consist of either a purine or a pyrimidine base, a ribose or deoxyribose, and a phosphate group. Adenosine triphosphate serves as the principle energy ca...Found on http://www.infoplease.com/ce6/sci/A0836149.html
An individual unit of DNA.Found on http://www.thehorse.com/Glossary.xhtml?L=N
(noo;kle-uo-t1d) The subunit of DNA and RNA macromolecules. Each nucleotide is composed of a nitrogenous base (adenine, guanine, cytosine, and thymine or uracil); a sugar (deoxyribose or ribose); and a phosphate group.Found on http://www.mhhe.com/biosci/abio/glossary.mhtml
A building block for nucleic acids (the molecules inside cells that carry genetic information). Nucleotides are attached end-to-end to form the nucleic acids DNA and RNA.Found on http://www.cancer.gov/dictionary?expand=N
Nucleotides are organic molecules that serve as the monomers, or subunits, of nucleic acids like DNA and RNA. The building blocks of nucleic acids, nucleotides are composed of a nitrogenous base, a five-carbon sugar (ribose or deoxyribose), and at least one phosphate group. Nucleotides serve to carry packets of energy within the cell (ATP). In the...Found on http://en.wikipedia.org/wiki/Nucleotide
a genetic building block.Found on http://www.encyclo.co.uk/local/22225
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