Exact Mass: 231.1583
Exact Mass Matches: 231.1583
Found 7 metabolites which its exact mass value is equals to given mass value 231.1583,
within given mass tolerance error 0.0002 dalton. Try search metabolite list with more accurate mass tolerance error
4.0E-5 dalton.
gamma-Aminobutyryllysine
gamma-Aminobutyryllysine, also known as N2-(4-amino-1-oxobutyl)-lysine, belongs to the class of organic compounds known as hybrid peptides. Hybrid peptides are compounds containing at least two different types of amino acids (alpha, beta, gamma, delta) linked to each other through a peptide bond. gamma-Aminobutyryllysine is a very strong basic compound (based on its pKa). gamma-Aminobutyryllysine is a dipeptide present in the human brain. This dipeptide occurs in much higher concentrations in the human brain than in the brains of lower mammals (PMID: 5559257). Adult brain and cerebrospinal fluid gamma-aminobutyryllysine levels and adult brain homocarnosine levels are higher than those found in children (PMID: 5031796). g-Aminobutyryl-lysine is a dipeptide present in human brain. This dipeptide occurs in much higher concentrations in human brain than in the brains of lower mammals. (PMID 5559257 )
