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EC Number Protein Variants Commentary Reference
Show all pathways known for 1.17.98.4Display the word mapDisplay the reaction diagram Show all sequences 1.17.98.4more mutant form of the enzyme in which cysteine replaces selenocysteine. The mutant and wild-type enzymes display similar pH dependencies with respect to activity and stability, although the mutant enzyme profiles are slightly shifted to more alkaline pH. The mutant enzyme binds formate with greater affinity than does the wild-type enzyme, as shown by reduced values of Km and Kd. The mutant enzyme has a turnover number which is more than two orders of magnitude lower than that of the native selenium-containing enzyme. The lower turnover number results from a diminished reaction rate for the initial step of the overall reaction 701023
Show all pathways known for 1.17.98.4Display the word mapDisplay the reaction diagram Show all sequences 1.17.98.4Sec140Cys mutant enzyme with cysteine substituted at position 140 for the selenocysteine residue has decreased catalytic activity and exhibits a different EPR signal 701024
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