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histidinol phosphate phosphatase, HisJ family This model represents the histidinol phosphate phosphatase HisJ of Bacillus subtilis, and related proteins from a number of species within a larger family of phosphatases in the PHP hydrolase family. HisJ catalyzes the penultimate step of histidine biosynthesis but shows no homology to the functionally equivalent sequence in E. coli, a domain of the bifunctional HisB protein. Note, however, that many species have two members and that Clostridium perfringens, predicted not to make histidine, has five members of this family; this family is designated subfamily rather than equivalog to indicate that members may not all act as HisJ.
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Jiyao W et al.(2023). "The conserved domain database in 2023.",