nucleotide

a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)

• base pair — one of the pairs of chemical bases joined by hydrogen bonds that connect the complementary strands of a DNA molecule or of an RNA molecule that has two strands; the base pairs are adenine with thymine and guanine with cytosine in DNA and adenine with uracil and guanine with cytosine in RNA
• adenosine monophosphate, AMP, adenylic acid — a nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP
• adenosine diphosphate, ADP — an ester of adenosine that is converted to ATP for energy storage
• adenosine triphosphate, ATP — a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions
• deoxyadenosine monophosphate, A — one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
• deoxycytidine monophosphate, C — one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
• deoxyguanosine monophosphate, G — one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
• deoxythymidine monophosphate, T — one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
• muton — the smallest unit of DNA where a mutation can occur
• uracil, U — a nitrogen-containing base found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine

• ester — formed by reaction between an acid and an alcohol with elimination of water