Aminoacylase from pig kidney contains no disulfide bonds

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Both non-reduced/reduced(NR/R)two-dimensional diagonal SDS-PAGE and NR/Rone-dimensional SDS-PAGE showed no disulfide bonds in aminoacylase from pig kidney.Eight andfour thiol groups were modified in the native enzyme by 2-chloromercuri-4-nitrophenol(MNP)a
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