Exact Mass: 161.8985
Exact Mass Matches: 161.8985
Found 2 metabolites which its exact mass value is equals to given mass value 161.8985,
within given mass tolerance error 0.001 dalton. Try search metabolite list with more accurate mass tolerance error
0.0002 dalton.
Phosphoroselenoic acid
Phosphoroselenoic acid, H3SePO3, is the activated selenium donor compound required for the biosynthesis of selenocysteyl-tRNA, the precursor of specific selenocysteine residues in bacterial and mammalian selenoproteins. Phosphoroselenoic acid is also the selenium donor used to synthesize selenocysteine (Sec), the 21st amino acid, which is co-translationally incorporated into selenoproteins at in-frame UGA codons. A number of enzymes have selenocysteine residues and, in some cases, the residues are located at their active sites. Proteins containing selenocysteine have been described in all three domains of life (PMID: 18156471). Selenophosphate synthetase (EC 2.7.9.3, human SPS1, the product of the selD gene) produces monoselenophosphate from selenide and ATP. The SPS1-encoded enzyme depends on a selenium salvage system that recycles L-selenocysteine. Selenophosphate synthetase genes play a role in a cancer cells response to ionizing radiation and its reaction product, selenophosphate, might be involved in cancer prevention in a p53-dependent manner and could be applied to the development of a novel cancer therapy (PMID: 8986768, 10609888, 16786570). Phosphoroselenoic acid, H3SePO3, is the activated selenium donor compound required for the biosynthesis of selenocysteyl-tRNA, the precursor of specific selenocysteine residues in bacterial and mammalian selenoproteins. Selenocysteine is the 21st amino acid, because Sec has a specific tRNA and codon UGA, and shares a major stop codon UGA. A number of enzymes have selenocysteine, residues and in some cases at their active sites. Proteins containing the 21st amino acid, selenocysteine (Sec), have been described in all three domains of life. (PMID: 18156471) [HMDB] COVID info from COVID-19 Disease Map Corona-virus Coronavirus SARS-CoV-2 COVID-19 SARS-CoV COVID19 SARS2 SARS
