HHsearch alignment for GI: 254780195 and conserved domain: TIGR01855

>TIGR01855 IMP_synth_hisH imidazole glycerol phosphate synthase, glutamine amidotransferase subunit; InterPro: IPR010139 Imidazole glycerol phosphate synthetase (IGPS) is a key metabolic enzyme, which links amino acid and nucleotide biosynthesis: it catalyses the closure of the imidazole ring within histidine biosynthesis (fifth step), and provides the substrate for de novo purine biosynthesis. IGPS consists of two different subunits: HisH, a glutamine amidotransferase (glutaminase), and HisF, a synthase (cyclase). HisH functions to provide a source of nitrogen, which is required for the synthesis of histidine and purines. In the HisH glutaminase reaction, the hydrolysis of glutamine yields ammonia, which is then used by HisF in the subsequent synthase reaction. The X-ray structure of the HisH/HisF heterodimer of IGPS reveals a putative tunnel for the transfer of ammonia from HisH to HisF via a (beta-alpha)8 barrel fold within HisF that abuts HisH . Ammonia tunnels connect the glutaminase and synthase active sites. HisH belongs to a large group of enzymes found in diverse and fundamental anabolic pathways. These enzymes share a common domain, referred to as the type-I glutamine amidotransferase (GATase) domain, which can occur either as single polypeptides (as with HisH) or as domains of large multifunctional proteins.; GO: 0016763 transferase activity transferring pentosyl groups, 0000105 histidine biosynthetic process, 0005737 cytoplasm.
Probab=99.45  E-value=9e-14  Score=119.92  Aligned_cols=182  Identities=25%  Similarity=0.364  Sum_probs=100.9

Q ss_pred             HHHHHHHHHHHHHHHCCCCCEEEECCCCCCCCCHH-HHHCCCCEEEECCC--CCC--CCC-H-HHHHHHHHHHCCCCCHH
Q ss_conf             68888888888787367241677225656723445-66216983997377--786--550-1-68889988740476322
Q gi|254780195|r  307 YRSLIEALRHSGVSNYTKVQLSWIDAETLEKEDPV-KHFYGVHGILVPGG--FGK--RGS-E-GKIAAIKFARENKIPFL  379 (544)
Q Consensus       307 Y~Si~EAL~hA~~~~~~kv~i~wIdse~le~~~~~-~~L~~~dGIlVPGG--FG~--RGi-e-GkI~Ai~yARen~iP~L  379 (544)
T Consensus        15 yrGV~~Al~~~G~~~~v~~-------------~-~y~~~~~aD~l~LPGVG~F~~aM~~l~~~~~~~~~~~~~~~~~P~l   80 (211)
T TIGR01855        15 YRGVKRALKRVGAEPVVVK-------------D-SYKELEKADKLILPGVGAFKAAMARLRELGLLDLLELVVKKKKPVL   80 (211)
T ss_pred             HHHHHHHHHHCCCEEEEEC-------------C-CCHHHHCCCEEEECCCCCHHHHHHHHHHHHHHHHHHHHHHCCCCEE
T ss_conf             9999999984498179962-------------8-6034310686785785888999999885005878899996189689


Q ss_pred             HHHHHHHHHHHHHHHHCCCCCCCCHHHC-CCCCCCCEECCCHHCCCCCCCC---CCCCCCCCCEEEECCEEEEECCCC--
Q ss_conf             3557699999999875168899970003-5666641211501123465300---156554674023165257855870--
Q gi|254780195|r  380 GICFGMQMAVIEAARNLAGIPNACSTEF-SEAGVPVIALMSEWMKGDQQEK---RLPSDDLGATMRLGAYDVSLKEET--  453 (544)
Q Consensus       380 GIClGmQ~avIEfARnvlgl~dAnStEf-~~~~~pvI~~l~e~~~~~~~~~---~~~~~~~GGTMRLG~~~~~l~~~S--  453 (544)
T Consensus        81 GiCLGMQLL------------fe~SeE~g~~~--~GLG~i~G~V~k~~~~~~~~~lk~PHmGWN------~v~~~~~~C~  140 (211)
T TIGR01855        81 GICLGMQLL------------FERSEEGGGEV--PGLGLIKGKVVKLEARVSLSKLKVPHMGWN------EVEPVKESCP  140 (211)
T ss_pred             EEEHHHHHH------------HCCCCCCCCCC--CCCEECCCEEEEECCCCCCCCCCCCCCCCC------EEEEHHHCCC
T ss_conf             998023430------------01562437886--653112761342056778872545756564------2312311551


Q ss_pred             HHHHHHCCCEEEEECCCCCCCCHHHHHHHHHCCCEEEEECCCCCEEEEEEECCCCEEEEEECCCCCCCCCCCCCHHHHHH
Q ss_conf             66886379847660252333278899899978959999869998689998389984999724877327876988415899
Q gi|254780195|r  454 LISRIYGLDLIPERHRHRYEVNVRYREKLEGCGLKFSGFSVDHALPEVVEYINHPWFIGVQYHPELKSRPLDPHPLFVSF  533 (544)
Q Consensus       454 ~~~~iYg~~~I~ERHRHRYEvN~~y~~~le~~Gl~~sg~~~d~~lvEiiEl~~HpffvgvQfHPEf~Srp~~phPLF~~f  533 (544)
T Consensus       141 ll~g~~~~~~~Y--FVHSY~~~~~-----~~S~~v~a~~~YG~~F~AaV~~~n---~~G~QFHPE-KS~~-~G~~lL~nf  208 (211)
T TIGR01855       141 LLKGIDKGAYFY--FVHSYYAVCE-----EESEAVLAKADYGEKFTAAVQKDN---IFGTQFHPE-KSGK-TGLKLLKNF  208 (211)
T ss_pred             HHCCCCCCCCEE--EEEEEEEECC-----CCHHHEEEEHHCCCCEEEEEECCC---EEEEEECCH-HHHH-HHHHHHHHH
T ss_conf             130776678155--6886677616-----881150112001863044665487---899972856-8888-999999998


Q ss_pred             H
Q ss_conf             9
Q gi|254780195|r  534 I  534 (544)
Q Consensus       534 i  534 (544)
T Consensus       209 ~  209 (211)
T TIGR01855       209 L  209 (211)
T ss_pred             H
T ss_conf             5