tetrakis-L-cysteinyl triiron tetrasulfide 291.6634521484375 291.739990234375 3- 703.7001953125 704.29998779296875 A protein modification that effectively converts four L-cysteine residues and a three-iron four-sulfur cluster to tetrakis-L-cysteinyl triiron tetrasulfide. C 0 Fe 3 H -4 N 0 O 0 S 4 C 12 Fe 3 H 16 N 4 O 4 S 8 C, C, C, C Cross-link 4. MOD:00331 PSI-MOD bis[bis-L-cysteinyl iron disulfido]iron di-mu-1:2kappaS-sulfido di-mu-2:3kappaS-sulfido iron bis(bis-S-cysteinyliron) hypothetical tetra-mu-sulfido tetrakis-S-L-cysteinyl triiron tetrakis-L-cysteinyl linear [3Fe-4S] cluster tetrakis-L-cysteinyl triiron tetrasulfide tetrakis-L-cysteinyl triiron tetrasulfide D2 cluster iron-sulfur cluster containing modification metal or metal cluster coordinated L-cysteine residue