>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=96.54 E-value=0.014 Score=38.90 Aligned_cols=160 Identities=14% Similarity=0.149 Sum_probs=87.0 Q ss_pred HHHHCCCCCCCEEEEEECCCHHHHHHHHHHHHCCCCCEEEECCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCEE Q ss_conf 98302745784699982699899999887531045377744256413677666889999855899999999985027906 Q gi|254781167|r 39 NILGFSTQEKPLALQIGGADISKLVEAAKIVEDFGYNEINLNVGCPSARVHEGSFGACLMLNPDIVGDCIAAMCKALSIP 118 (322) Q Consensus 39 ~~~~~~~~e~p~~~Ql~g~~p~~~~~aa~~~~~~g~~~idlN~GCP~~~v~~~g~GaaLl~~p~~~~~iv~~~~~~~~~p 118 (322) T Consensus 68 ~~I~~i~~~~~~pi~vGGGIr-s~~~-~~~~l~~Gadkvvig--------------s~~~~~~~~~-~~~~~~-g~~~iv 129 (233) T cd04723 68 EAIRELAAAWPLGLWVDGGIR-SLEN-AQEWLKRGASRVIVG--------------TETLPSDDDE-DRLAAL-GEQRLV 129 (233) T ss_pred HHHHHHHHHCCCCEEEECCCC-CHHH-HHHHHHCCCCEEECC--------------CHHCCCHHHH-HHHHHH-CCCCEE T ss_conf 999999987899889970227-6999-999986072015245--------------1004998999-999997-899989 Q ss_pred EEEEEECCCCCC-CCCCCHHHHHHHHCCCCCCHHHHHHHHHHHHCCCCCCCCCCCCCHHHHHHHHHHHCCCCCCCCCCCC Q ss_conf 999861134566-5322014554320001220121001356640257742122766104678766673887530257777 Q gi|254781167|r 119 VTVKCRIGVDDQ-IPAVALRNLVKSIKKSGVNGIWIHARKAILKGLSPKDNRKIPNLDYDIVYEIKKENPDLFIGLNGGL 197 (322) Q Consensus 119 vsvK~RlG~~~~-~~~~~~~~~~~~~~~~g~~~itiH~Rt~~~~g~s~~~~~~~~~~~~~~i~~l~~~~~~~~i~~NGdi 197 (322) T Consensus 130 vslD~k~~~~~~~~~~~~~~~~~~~~~~~-~~eii~t~Id--~dG------t~~G-~d~~l~~~i~~~~-~~pvi~sGGv 198 (233) T cd04723 130 LSLDFRGGQLLKPTDFIGPEELLRRLAKW-PEELIVLDID--RVG------SGQG-PDLELLERLAARA-DIPVIAAGGV 198 (233) T ss_pred EEEEEECCCCCCCCCCCCHHHHHHHHHHH-CCEEEEEEEC--CCC------CCCC-CCHHHHHHHHHHC-CCCEEEECCC T ss_conf 99999899787246434899999999965-8959998643--446------5677-7999999999868-9989998899 Q ss_pred CCHHHHHHHHH-CCCCEEEECCCCCHHHHHH Q ss_conf 89989888742-0352344122000124399 Q gi|254781167|r 198 EDMSQALKILP-SVDGVMIGRAAYKNSAMLT 227 (322) Q Consensus 198 ~~~~~a~~~l~-~~dgvMigRga~~~P~if~ 227 (322) T Consensus 199 ~s~~di~~l~~~g~~gvivg~alh~g~i~l~ 229 (233) T cd04723 199 RSVEDLELLKKLGASGALVASALHDGGLTLE 229 (233) T ss_pred CCHHHHHHHHHCCCCEEEEEHHHHCCCCCHH T ss_conf 9999999999789989998639778997889

HHsearch alignment for GI: 254781167 and conserved domain: cd04723