>cd04731 HisF The cyclase subunit of imidazoleglycerol phosphate synthase (HisF). 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 plants, or peformed by a heterodimer (HisH-glutaminase and HisF-cyclase), like in bacteria.

Probab=98.02 E-value=4.2e-05 Score=57.40 Aligned_cols=168 Identities=14% Similarity=0.291 Sum_probs=108.3 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 61 ~~i~~i~~~~~~pi~vGGGI-rs~~~~~~~l-~~GadkVvig--------------s~~~~n~~~~~~~~~~~Gs-q~Iv 123 (243) T cd04731 61 DVVERVAEEVFIPLTVGGGI-RSLEDARRLL-RAGADKVSIN--------------SAAVENPELIREIAKRFGS-QCVV 123 (243) T ss_pred HHHHHHHHHCCCCEEEEEEE-EEHHHHHHHH-HCCCCEEEEC--------------CCCCCCCCHHHHHHHHCCC-CCEE T ss_conf 99999998679868998506-6479999999-7799789989--------------8442377143578875699-3099 Q ss_pred EEEEEE-----------CCCCCCCCCCCHHHHHHHHCCCCCCHHHHHHHHHHHHCCCCCCCCCCCCCHHHHHHHHHHHCC Q ss_conf 999861-----------134566532201455432000122012100135664025774212276610467876667388 Q gi|254781167|r 119 VTVKCR-----------IGVDDQIPAVALRNLVKSIKKSGVNGIWIHARKAILKGLSPKDNRKIPNLDYDIVYEIKKENP 187 (322) Q Consensus 119 vsvK~R-----------lG~~~~~~~~~~~~~~~~~~~~g~~~itiH~Rt~~~~g~s~~~~~~~~~~~~~~i~~l~~~~~ 187 (322) T Consensus 124 ~siD~k~~~~~~~~v~~~~~~~-~~~~~~~~~i~~~~~~G~geil~tdI~--------~DGt~~G-~d~~l~~~i~~~~- 192 (243) T cd04731 124 VSIDAKRRGDGGYEVYTHGGRK-PTGLDAVEWAKEVEELGAGEILLTSMD--------RDGTKKG-YDLELIRAVSSAV- 192 (243) T ss_pred EEEEEEECCCCCEEEEECCCCC-CCHHHHHHHHHHHHHCCCCEEEEEEEC--------CCCCCCC-CCHHHHHHHHHHC- T ss_conf 9999765378962898469844-126789999999984698789998725--------7685665-7999999999868- Q ss_pred CCCCCCCCCCCCHHHHHHHH--HCCCCEEEECCCCCHHHHHHHHHHHHC Q ss_conf 75302577778998988874--203523441220001243999999871 Q gi|254781167|r 188 DLFIGLNGGLEDMSQALKIL--PSVDGVMIGRAAYKNSAMLTTVDEYFS 234 (322) Q Consensus 188 ~~~i~~NGdi~~~~~a~~~l--~~~dgvMigRga~~~P~if~~I~~~l~ 234 (322) T Consensus 193 ~~piI~sGGi~~~~di~~~l~~~~~~gv~~g~~~~~~~~~l~~~k~~L~ 241 (243) T cd04731 193 NIPVIASGGAGKPEHFVEAFEEGGADAALAASIFHFGEYTIAELKEYLA 241 (243) T ss_pred CCCEEEECCCCCHHHHHHHHHHCCCEEEEEHHHHHCCCCCHHHHHHHHH T ss_conf 9999998899999999999987898299882276769989999999986

HHsearch alignment for GI: 254781167 and conserved domain: cd04731