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EC Number Metals/Ions Commentary Reference
Display the reaction diagram Show all sequences 2.5.1.154Cobalt the reduced catalytic activity of EutT wild-type in complex with Co relative to the Fe(II)-containing enzyme arises from the incomplete incorporation of Co(II) ions and, thus, a decrease in the relative population of four-coordinate Co(II)Cbl. The Co(II) ions reside in a distorted tetrahedral coordination environment with direct cysteine sulfur ligation. Residues in the HX11CCX2C(83) motif are required for the tight binding of the divalent metal ion and are critical for the formation of a four-coordinate cob(II)alamin intermediate. Residue Cys80 coordinates to the Co(II) ion, while the additional residues are important for maintaining the structural integrity and/or high affinity of the metal binding site 762727
Display the reaction diagram Show all sequences 2.5.1.154more enzyme does not require a divalent metal cofactor for catalytic activity 758818
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