!Nucleic Acid Pseudoatom Nomenclature !BMRB = BioMagResBank, derived from the 1998 !IUPAC-IUBMB-IUPAB Recommendations ! Deoxyribonucleotides !NA NA BMRB !--- --- ---- A dAMP Q6 A dAMP Q2' A dAMP Q5' C dCMP Q4 C dCMP Q2' C dCMP Q5' G dGMP Q2 G dGMP Q2' G dGMP Q5' T dTMP M7 T dTMP Q2' T dTMP Q5' ! Ribonucleotides !NA NA BMRB !--- --- ---- A AMP Q6 A AMP Q5' C CMP Q4 C CMP Q5' G GMP Q2 G GMP Q5' I IMP Q5' U UMP U UMP Q5'