nucleotide (redirected from Thionucleotides)

nucleotide /nu·cleo·tide/ (noo´kle-o-tīd″) one of the compounds into which nucleic acid is split by action of nuclease; nucleotides are composed of a base (purine or pyrimidine), a sugar (ribose or deoxyribose), and a phosphate group.

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cyclic nucleotides  those in which the phosphate group bonds to two atoms of the sugar forming a ring, as in cyclic AMP and cyclic GMP, which act as intracellular second messengers.

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nu·cle·o·tide (nkl--td)

n.

Any of various compounds consisting of a nucleoside combined with a phosphate group and forming the basic constituent of DNA and RNA.

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Nucleotide

Any of a group of organic molecules that link together to form the building blocks of DNA or RNA.

Mentioned in: Myotonic Dystrophy

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nucleotide

[no̅o̅′klē·ətīd′]

a compound consisting of one or more phosphate groups, a pentose sugar, and a nitrogenous base. Chains of nucleotides form DNA and RNA; free nucleotides, such as adenosine triphosphate and guanosine triphosphate, are important energy carriers in all cells.

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nucleotide

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. See also nucleoside, deoxyribonucleic acid.

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cyclic n's

those in which the phosphate group bonds to two atoms of the sugar forming a ring, as in cyclic AMP and cyclic GMP, which act as intracellular second messengers.

nucleotide sequences

see dna sequencing.

single nucleotide polymorphisms (SNPs)

single base pair changes that distinguish one individual from another of the same species.