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Species variability of the lens protein ζ-crystallin was correlated with those of alcohol dehydrogenases of classes I and III and sorbitol dehydrogenase in the same protein family. The extent of overall variability, nature of residues conserved, and patterns of segment variability, all fall within the limits typical of the 'variable' group of medium-chain alcohol dehydrogenases. This shows that ζ-crystallin...
A cytotoxin-like basic protein has been isolated from the venom of the nominate race of cobra (Naja naja naja from Pakistan) by a single step of high-performance liquid chromatography. The primary structure was determined and consists of 62 amino acid residues in a single polypeptide chain. It is highly similar to that of the cytotoxin-like basic proteins isolated from other Naja species, but differs...
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