L-cysteinyl copper sulfido molybdopterin cytosine dinuncleotide 1025.22998046875 1025.843994140625 922.08001708984375 922.8348388671875 MOD:00360 [8-amino-1a,2,4a,5,6,7,10-heptahydro-2-(trihydrogen diphosphate 5'-ester with cytosine)methyl-6-oxo-3,4-dimercapto-pteridino[6,7-5,6]pyranoato-S3,S4]-cysteinyl-S-copper-mu-sulfido-molybdenum hydroxide oxide A protein modification that effectively converts an L-cysteine residue to L-cysteinyl copper sulfido molybdopterin cytosine dinuncleotide. C 22 H 29 N 9 O 16 P 2 S 4 Cu 1 Mo 1 PSI-MOD cysteinyl copper mu-sulfido Mo-pterin cytosine dinucleotide L-cysteinyl copper sulfido molybdopterin cytosine dinucleotide none C C 19 H 24 N 8 O 15 P 2 S 3 Cu 1 Mo 1 copper sulfido molybdopterin cytosine dinuncleotide natural CuSMo copper containing modified residue molybdenum pterin containing modification sulfur containing modified residue metal or metal cluster coordinated L-cysteine residue