Studies on the structure of rabbit muscle aldolase: Ordering of the tryptic peptides; Sequence of 164 amino acid residues in the NH2-terminal BrCN peptide |
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Authors: | N Nakai D Chang CY Lai |
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Institution: | Roche Institute of Molecular Biology, Nutley, New Jersey 07110 USA |
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Abstract: | The sequence of 164 amino acid residues in the NH2-terminal BrCN peptide of rabbit muscle aldolase has been determined. The information has permitted location of the following amino acid residues involved in the catalytic activity or in maintaining the structural integrity of the enzyme: Cys-72, forms a disulfide bridge with Cys-336 in the COOH-terminal segment on inactivation of the enzyme by oxidation; Lys-107, forms a Schiff base with pyridoxal phosphate upon inactivation of aldolase by this reagent; Cys-134 and Cys-177, buried, do not react with SH-reagents in the native enzyme. |
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Keywords: | To whom correspondence should be addressed |
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