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SNO glutamine amidotransferase family
This family and its amidotransferase domain was first described in [1]. It is predicted that members of this family are involved in the pyridoxine biosynthetic pathway, based on the proximity and co-regulation of the corresponding genes and physical interaction between the members of Pfam:PF01174 and Pfam:PF01680 [2]. [1]. 9159529. Sequence analysis of an exceptionally conserved operon suggests. enzymes for a new link between histidine and purine. biosynthesis.. Galperin MY, Koonin EV;. Mol Microbiol 1997;24:443-445.. [2]. 9791124. The highly conserved, coregulated SNO and SNZ gene families in. Saccharomyces cerevisiae respond to nutrient limitation.. Padilla PA, Fuge EK, Crawford ME, Errett A, Werner-Washburne M;. J Bacteriol 1998;180:5718-5726. (from Pfam)
Glutamine amidotransferase class-I
pyridoxal 5'-phosphate synthase glutaminase subunit PdxT
Pyridoxal 5'-phosphate (PLP) is synthesized by the PdxA/PdxJ pathway in some species (mostly within the gamma subdivision of the proteobacteria) and by the Pdx1/Pdx2 pathway in most other organisms. This family describes Pdx2, the glutaminase subunit of the PLP synthase.
pyridoxal 5'-phosphate synthase glutaminase subunit PdxT catalyzes the hydrolysis of glutamine to glutamate and ammonia as part of the biosynthesis of pyridoxal 5'-phosphate
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