1,7-Dimethylguanosine
IUPAC 名称
2-amino-9-[(2R,3R,4S,5R)-4-hydroxy-5-(hydroxymethyl)-3-oxidooxolan-2-yl]-1,7-dimethyl-6-oxo-6,7-dihydro-1H-9λ⁵-purin-9-ylium
描述
1,7-dimethylguanosine is a modified ribonucleoside. 1,7-dimethylguanosine is formed in tRNA enzymatic methylation. 1,7-Dimethylguanosine was found to be formed in high amounts in the tRNA methylation reaction at high concentrations of methylating agents.1,7-dimethylguanosine has a possible connection to chemical cancerogenesis and to the aberrant increase of tRNA methylases activity in tumor tissues. The amount of 1,7-dimethylguanosine produced by the kidney is higher than that produced by the liver. The immediate precursor in the formation of 1,7-dimethylguanosine in tRNA appears to be 1-methylguanosine. An accumulation of modified ribonucleosides appears in the serum of uremic patients. (PMID: 7046770, 6164398, 7259877, 7159514, 9607216) [HMDB]
异构
CN1C=[N+]([C@@H]2O[C@H](CO)[C@@H](O)[C@H]2[O-])C2=C1C(=O)N(C)C(N)=N2
InChI标识符
InChI=1S/C12H17N5O5/c1-15-4-17(11-8(20)7(19)5(3-18)22-11)9-6(15)10(21)16(2)12(13)14-9/h4-5,7-8,11,18-19H,3H2,1-2H3,(H2,13,14)/t5-,7-,8-,11-/m1/s1
键
AISVAXNALHBFPC-IOSLPCCCSA-N