Protein
Anaerobic sulfatase-maturating enzyme
Organism
Clostridium perfringens (strain ATCC 13124 / DSM 756 / JCM 1290 / NCIMB 6125 / NCTC 8237 / Type A)
Function
Involved in 'Cys-type' sulfatase maturation under anaerobic conditions. Catalyzes the post-translational modification of cysteine ('Cys-51' in the arylsulfatase CPF_0221) into 3-oxoalanine (also known as C(alpha)-formylglycine (FGly)), by a free radical chemical mechanism initiated via the reductive cleavage of S-adenosyl-L-methionine (SAM). Is also able to oxidize a serine residue in a synthetic substrate to FGly in vitro, and in a serine variant of a Cys-type sulfatase in vivo, but this activity is not physiological.
Similarity
Belongs to the radical SAM superfamily. Anaerobic sulfatase-maturating enzyme family.
Sequence
MPPLSLLIKPASSGCNLKCTYCFYHSLSDNRNVKSYGIMRDEVLESMVKRVLNEANGHCSFAFQGGEPTLAGLEFFEKLMELQRKHNYKNLKIYNSLQTNGTLIDESWAKFLSENKFLVGLSMDGPKEIHNLNRKDCCGLDTFSKVERAAELFKKYKVEFNILCVVTSNTARHVNKVYKYFKEKDFKFLQFINCLDPLYEEKGKYNYSLKPKDYTKFLKNLFDFWYEDFLNGNRVSIRYFDGLLETILLGKSSSCGMNGTCTCQFVVESDGSVYPCDFYVLDKWRLGNIQDMTMKELFETNKNHEFIKLSFKVHEECKKCKWFRLCKGGCRRCRDSKEDSALELNYYCQSYKEFFEYAFPRLINVANNIK