Carnosine (beta-alanyl-L-histidine) and homocarnosine (gamma-aminobutyryl-L-histidine) are abundant dipeptides in skeletal muscle and brain of most vertebrates. Carnosine synthase 1 (CARNS1) transforms ATP, L-histidine (L-His) and beta-alanine (b-Ala) to carnosine (CARN) with much greater efficiency than synthesis of homocarnosine (Drozak et al. 2010).
Stroobant, V, Vertommen, D, Veiga-da-Cunha, M, Drozak, J, Van Schaftingen, E
carnosine synthase activity of CARNS1 [cytosol]
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