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The gene for a highly thermostable neutral proteinase (Npr) was isolated from Bacillus sp. strain EA1 by the polymerase chain reaction using consensus primers based on the sequences of npr genes from related species. The gene was sequenced and shown to be closely related to a neutral proteinase gene from Bacillus caldolyticus strain YP-T; the mature form of the enzyme differing by only a single amino...
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