A Novel Bacillus thuringiensis Cry-Like Protein from a Rare Filamentous Strain Promotes Crystal Localization within the Exosporium

摘要

Mutation of a novel cry -like gene ( cry256 ) from Bacillus thuringiensis resulted in a protein crystal, normally located within the spore's exosporium, being found predominately outside the exosporium. The cry256 gene codes for a 3-domain Cry-like protein that does not correspond to any of the known Cry protein holotypes.