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. 2021 Mar 24;10(4):503. doi: 10.3390/antiox10040503

Figure 1.

Figure 1

Amino acid sequence of human serum albumin (ALB). Human serum ALB, which is presented in the single-letter amino acid code, consists of a polypeptide chain of 585 amino acid residues including 35 cysteine (Cys) residues. Thirty-four of Cys residues form disulfide bridges, while the remaining single Cys residue at position 34 is free and redox-active. Cysteinylation, homocysteinylation, sulfinylation on Cys34 and glycosylation on lysine residue at position 233 (Lys233) and Lys525 have been confirmed [9].