Exact Mass: 183.0756
Exact Mass Matches: 183.0756
Found 7 metabolites which its exact mass value is equals to given mass value 183.0756,
within given mass tolerance error 0.0002 dalton. Try search metabolite list with more accurate mass tolerance error
4.0E-5 dalton.
2,6-Diamino-4-hydroxy-5-N-methylformamidopyrimidine
2,6-Diamino-4-hydroxy-5-N-methylformamidopyrimidine is a methylated derivative of 2,6-Diamino-4-hydroxy-5-N-formamidopyrimidine or FapyGua. It is produced by DNA-formamidopyrimidine glycosylase (EC 3.2.2.23). This enzyme catalyzes the hydrolysis of DNA containing ring-opened 7-methylguanine residues, releasing 2,6-diamino-4-hydroxy-5-(N-methyl)formamidopyrimidine. More specifically, this enzyme catalyzes the removal of oxidized purine bases by cleaving the N-C1 glycosidic bond between the oxidized purine and the deoxyribose sugar. The reaction involves the formation of a covalent enzyme substrate intermediate. Release of the enzyme and free base by a beta-elimination or a beta, gamma-elimination mechanism results in the cleavage of the DNA backbone 3 of the apurinic (AP) site. The presence of this compound in urine is indicative of oxidative damage to DNA (oxidized purine base lesions) [HMDB] 2,6-Diamino-4-hydroxy-5-N-methylformamidopyrimidine is a methylated derivative of 2,6-Diamino-4-hydroxy-5-N-formamidopyrimidine or FapyGua. It is produced by DNA-formamidopyrimidine glycosylase (EC 3.2.2.23). This enzyme catalyzes the hydrolysis of DNA containing ring-opened 7-methylguanine residues, releasing 2,6-diamino-4-hydroxy-5-(N-methyl)formamidopyrimidine. More specifically, this enzyme catalyzes the removal of oxidized purine bases by cleaving the N-C1 glycosidic bond between the oxidized purine and the deoxyribose sugar. The reaction involves the formation of a covalent enzyme substrate intermediate. Release of the enzyme and free base by a beta-elimination or a beta, gamma-elimination mechanism results in the cleavage of the DNA backbone 3 of the apurinic (AP) site. The presence of this compound in urine is indicative of oxidative damage to DNA (oxidized purine base lesions).
