Protein Family Models

The PHP (Polymerase and Histidinol Phosphatase) domain is a putative phosphoesterase domain. [1]. 9685491. Phosphoesterase domains associated with DNA polymerases of diverse origins. Aravind L, Koonin EV;. Nucleic Acids Res 1998;26:3746-3752. (from Pfam)

Date:

2024-10-16

This HMM 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.

Date:

2021-09-15

histidinol-phosphatase is a polymerase and histidinol-phosphatase (PHP) family protein that catalyzes the hydrolysis of histidinol-phosphate to form L-histidinol and phosphate

Date:

2019-05-01