| 摘要 |
Sulfur atom-free enzyme proteins sustaining the activity of the intact enzyme proteins and showing an oxidation resistance wherein L-cysteine and L-methionine residues in enzyme proteins have been substituted by 18 L-amino acid residues including L-alanine, L-aspartic acid, L-glutamic acid, L-phenylalanine, L-glycine, L-histidine, L-isoleucine, L-lysine, L-leucine, L-asparagine, L-proline, L-glutamine, L-arginine, L-serine, L-threonine, L-valine, L-tyrosine and L-tryptophan. Namely, enzyme proteins having an antioxidative property against oxidation with hydrogen peroxide, etc. while sustaining the activity of the intact enzymes and a process for producing the same.
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