Identify the base and monosaccharide in the following nucleotide. Name the nucleotide and give its three- or four-letter abbreviation.
Analysis
• Identify the sugar and base as in Sample Problem 17.1.
• Name the nucleotide by naming the nucleoside and adding the term 5′ -monophosphate, since the molecule contains only one phosphorus bonded to the 5′-OH.
• Use the abbreviations from Table 17.1. When the sugar portion has an OH group at C2′, a three-letter abbreviation is used. When the sugar portion has no OH group at C2′, the four-letter abbreviation that begins with “d” is used.
Table 17.1 Names of Bases, Nucleosides, and Nucleotides in Nucleic Acids:
| Abbreviation | Nucleotide | Nucleoside | Abbreviation | Base |
| DNA | ||||
| dAMP | Deoxyadenosine 5′-monophosphate | Deoxyadenosine | A | Adenine |
| dGMP | Deoxyadenosine 5′-monophosphate | Deoxyadenosine | G | Guanine |
| dCMP | Deoxycytidine 5′-monophosphate | Deoxycytidine | C | Cytosine |
| dTMP | Deoxythymidine 5′-monophosphate | Deoxythymidine | T | Thymine |
| RNA | ||||
| dAMP | Adenosine 5′-monophosphate | Adenosine | A | Adenine |
| dGMP | Guanosine 5′-monophosphate | Guanosine | G | Guanine |
| dCMP | Cytidine 5′-monophosphate | Cytidine | C | Cytosine |
| dUMP | Uridine 5′-monophosphate | Uridine | U | Uracil |
