>cd04723 HisA_HisF Phosphoribosylformimino-5-aminoimidazole carboxamide ribonucleotide (ProFAR) isomerase (HisA) and the cyclase subunit of imidazoleglycerol phosphate synthase (HisF). The ProFAR isomerase catalyzes the fourth step in histidine biosynthesis, an isomerisation of the aminoaldose moiety of ProFAR to the aminoketose of PRFAR (N-(5'-phospho-D-1'-ribulosylformimino)-5-amino-1-(5''-phospho-ribosyl)-4-imidazolecarboxamide). In bacteria and archaea, ProFAR isomerase is encoded by the HisA gene. The Imidazole glycerol phosphate synthase (IGPS) catalyzes the fifth step of histidine biosynthesis, the formation of the imidazole ring. IGPS converts N1-(5'-phosphoribulosyl)-formimino-5-aminoimidazole-4-carboxamide ribonucleotide (PRFAR) to imidazole glycerol phosphate (ImGP) and 5'-(5-aminoimidazole-4-carboxamide) ribonucleotide (AICAR). This conversion involves two tightly coupled reactions in distinct active sites of IGPS. The two catalytic domains can be fused, like in fungi and pl

Probab=90.62 E-value=0.46 Score=27.41 Aligned_cols=137 Identities=18% Similarity=0.141 Sum_probs=72.3 Q ss_pred CCCCCCCCHHHHHHHCCCCEEECCHHCCCCCCCCHHHHHHHHHHHHHCCCCEEEECCCCCHHHHCCCCCCC-CCCCHHHH Q ss_conf 34332120677754073100104200022135799999999999983347479981655203334980001-11002221 Q gi|254780197|r 75 GPYTGDISANMLADCGANFVILGHSERRIGHREDSYVVQSKVKSACNAGLYPIVCIGETDEEYRSGRTFEV-LQKQLDCS 153 (264) Q Consensus 75 GA~TGeiSa~mL~d~g~~~viiGHSERR~~~~E~d~~I~~K~~~al~~~l~pIlCiGE~~~e~~~~~~~~~-l~~Ql~~~ 153 (264) T Consensus 85 GGIrs~~~~~~~l~~Gadkvvigs-~---~~-~~-~~~~~~~~~--~g~~~ivvslD----~k~-~~~~~~~~~~~~~~~ 151 (233) T cd04723 85 GGIRSLENAQEWLKRGASRVIVGT-E---TL-PS-DDDEDRLAA--LGEQRLVLSLD----FRG-GQLLKPTDFIGPEEL 151 (233) T ss_pred CCCCCHHHHHHHHHCCCCEEECCC-H---HC-CC-HHHHHHHHH--HCCCCEEEEEE----EEC-CCCCCCCCCCCHHHH T ss_conf 022769999999860720152451-0---04-99-899999999--78999899999----989-978724643489999 Q ss_pred HHCCCC-CCCCEEEECHHHHHCCCCCCCCHHHHHHHHHHHHHHHHHCCHHHCCCEEEECCCC-CHHHHHHHHCCCCCCEE Q ss_conf 000000-1341132051353045576431124554467999999633224164308862778-98789999668989688 Q gi|254780197|r 154 LPSEFK-SSVPVIAYEPIWAIGTGRVPAVVDLEKIHSFVRRILLDRFPEEGQKMRILYGGSV-DVANAEDFSLIENIDGL 231 (264) Q Consensus 154 l~~~~~-~~~~iIAYEPvWAIGtG~~a~~~~i~~~~~~Ir~~l~~~~~~~~~~i~ilYGGSV-~~~N~~~l~~~~~iDG~ 231 (264) T Consensus 152 ~~~~~~~~~eii--~t~Id~dGt~~G~d~~l~~~i~~~-------------~~~pvi~sGGv~s~~di~~l~~-~g~~gv 215 (233) T cd04723 152 LRRLAKWPEELI--VLDIDRVGSGQGPDLELLERLAAR-------------ADIPVIAAGGVRSVEDLELLKK-LGASGA 215 (233) T ss_pred HHHHHHHCCEEE--EEEECCCCCCCCCCHHHHHHHHHH-------------CCCCEEEECCCCCHHHHHHHHH-CCCCEE T ss_conf 999996589599--986434465677799999999986-------------8998999889999999999997-899899 Q ss_pred EECHHHCCH Q ss_conf 974343588 Q gi|254780197|r 232 LVGGASLQH 240 (264) Q Consensus 232 LVG~ASl~~ 240 (264) T Consensus 216 ivg~alh~g 224 (233) T cd04723 216 LVASALHDG 224 (233) T ss_pred EEEHHHHCC T ss_conf 986397789

HHsearch alignment for GI: 254780197 and conserved domain: cd04723