HHsearch alignment for GI: 254780972 and conserved domain: TIGR00302

>TIGR00302 TIGR00302 phosphoribosylformylglycinamidine synthase, purS protein; InterPro: IPR003850 Phosphoribosylformylglycinamidine(FGAM) synthetase, 6.3.5.3 from EC, catalyses the fourth step in the de novo purine biosynthetic pathway . 5-phosphoribosylformylglycinamide (FGAR) + glutamine + ATP = FGAM + glutamate + ADP + Pi In eukaryotes and many bacterial systems (including Escherichia coli and Salmonella typhimurium), the FGAM synthetase is encoded by the large form of PurL (lgPurL), which contains an N-terminal ATPase domain and a C-terminal glutamine-binding domain. In archaeal and other bacterial systems, however, FGAM synthetase is encoded by separate genes, making it a multisubunit (rather than multidomain) enzyme. The protein is composed of the small form of PurL (smPurL), which is homologus to the ATPase domain of lgPurL, PurQ which is homologous to the glutamine-binding domain of of lgPurL, and PurS, whose function is not known. This entry represents the PurS subunit of the multisubunit FGAM synthetase. Recent studies showed that disruption of the purS gene in B. subtilis resulted in a purine auxotrophic phenotype, due to defective FGAM synthetase activity. Therefore, the PurS protein appears to be required for the function of the PurL and PurQ subunits of the FGAM synthetase, but the molecular mechanism for the functional role of PurS is currently not known. For additional information please see , . ; GO: 0016879 ligase activity forming carbon-nitrogen bonds.
Probab=99.98  E-value=1e-32  Score=211.38  Aligned_cols=80  Identities=43%  Similarity=0.830  Sum_probs=78.6

Q ss_pred             EEEEEEEEECCCCCCHHHHHHHHHHHHCCCCCCCEEEEEEEEEEEECCCCHHHHHHHHHHHHHHHCCCCCEEEEEEEEEE
Q ss_conf             59999999588666877899999986288642000023018999973899899999999999984797612479999997
Q gi|254780972|r    2 IKANVVVKLKKDVLDPQGKALKTALSNIGFHNINQIRQGKIFDIEMDETLSDIAEEELESICQNLLANPVIEDYDIKVQK   81 (84)
Q Consensus         2 ~k~~V~V~lK~gVlDPqG~aV~~aL~~lG~~~v~~vr~GK~iei~i~~~~~~~a~~~v~~~c~~lLaNpvIE~y~i~i~e   81 (84)
T Consensus         1 y~~~Vyi~LK~gVLdPeG~a~~~AL~~LGy~~V~~V~t~K~i~~~~E~~~~e~~~~ev~eMC~kLLANpVI~dY~~~~~~   80 (80)
T TIGR00302         1 YKVEVYIKLKKGVLDPEGEAVQRALRLLGYNEVKDVRTGKVIELTIEAEDREEVEREVEEMCEKLLANPVIEDYEIEVEE   80 (80)
T ss_pred             CEEEEEEEECCCCCCCCHHHHHHHHHHCCCCCCCEEEEEEEEEEEECCCCHHHHHHHHHHHHHHHCCCCCEECCEEEEEC
T ss_conf             96789986467636811488999986337787303468888899727877788999999887762479852054578839