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 4.0E-5 dalton. Try search metabolite list with more accurate mass tolerance error
8.0E-6 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).
