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: 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. PMID:9159529

2: 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. PMID:9791124