ID B7FVQ7_PHATC Unreviewed; 554 AA.
AC B7FVQ7;
DT 10-FEB-2009, integrated into UniProtKB/TrEMBL.
DT 10-FEB-2009, sequence version 1.
DT 24-JAN-2024, entry version 68.
DE RecName: Full=Imidazole glycerol phosphate synthase hisHF {ECO:0000256|PIRNR:PIRNR036936};
DE Includes:
DE RecName: Full=Glutaminase {ECO:0000256|PIRNR:PIRNR036936};
DE EC=3.5.1.2 {ECO:0000256|PIRNR:PIRNR036936};
DE Includes:
DE RecName: Full=Cyclase {ECO:0000256|PIRNR:PIRNR036936};
GN ORFNames=PHATRDRAFT_19324 {ECO:0000313|EMBL:EEC49671.1};
OS Phaeodactylum tricornutum (strain CCAP 1055/1).
OC Eukaryota; Sar; Stramenopiles; Ochrophyta; Bacillariophyta;
OC Bacillariophyceae; Bacillariophycidae; Naviculales; Phaeodactylaceae;
OC Phaeodactylum.
OX NCBI_TaxID=556484 {ECO:0000313|EMBL:EEC49671.1, ECO:0000313|Proteomes:UP000000759};
RN [1] {ECO:0000313|EMBL:EEC49671.1, ECO:0000313|Proteomes:UP000000759}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCAP 1055/1 {ECO:0000313|EMBL:EEC49671.1,
RC ECO:0000313|Proteomes:UP000000759};
RX PubMed=18923393; DOI=10.1038/nature07410;
RA Bowler C., Allen A.E., Badger J.H., Grimwood J., Jabbari K., Kuo A.,
RA Maheswari U., Martens C., Maumus F., Otillar R.P., Rayko E., Salamov A.,
RA Vandepoele K., Beszteri B., Gruber A., Heijde M., Katinka M., Mock T.,
RA Valentin K., Verret F., Berges J.A., Brownlee C., Cadoret J.P.,
RA Chiovitti A., Choi C.J., Coesel S., De Martino A., Detter J.C., Durkin C.,
RA Falciatore A., Fournet J., Haruta M., Huysman M.J., Jenkins B.D.,
RA Jiroutova K., Jorgensen R.E., Joubert Y., Kaplan A., Kroger N., Kroth P.G.,
RA La Roche J., Lindquist E., Lommer M., Martin-Jezequel V., Lopez P.J.,
RA Lucas S., Mangogna M., McGinnis K., Medlin L.K., Montsant A.,
RA Oudot-Le Secq M.P., Napoli C., Obornik M., Parker M.S., Petit J.L.,
RA Porcel B.M., Poulsen N., Robison M., Rychlewski L., Rynearson T.A.,
RA Schmutz J., Shapiro H., Siaut M., Stanley M., Sussman M.R., Taylor A.R.,
RA Vardi A., von Dassow P., Vyverman W., Willis A., Wyrwicz L.S.,
RA Rokhsar D.S., Weissenbach J., Armbrust E.V., Green B.R., Van de Peer Y.,
RA Grigoriev I.V.;
RT "The Phaeodactylum genome reveals the evolutionary history of diatom
RT genomes.";
RL Nature 456:239-244(2008).
RN [2] {ECO:0000313|Proteomes:UP000000759}
RP GENOME REANNOTATION.
RC STRAIN=CCAP 1055/1 {ECO:0000313|Proteomes:UP000000759};
RG Diatom Consortium;
RA Grigoriev I., Grimwood J., Kuo A., Otillar R.P., Salamov A., Detter J.C.,
RA Lindquist E., Shapiro H., Lucas S., Glavina del Rio T., Pitluck S.,
RA Rokhsar D., Bowler C.;
RL Submitted (AUG-2008) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: IGPS catalyzes the conversion of PRFAR and glutamine to IGP,
CC AICAR and glutamate. The glutaminase domain produces the ammonia
CC necessary for the cyclase domain to produce IGP and AICAR from PRFAR.
CC The ammonia is channeled to the active site of the cyclase domain.
CC {ECO:0000256|PIRNR:PIRNR036936}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5-[(5-phospho-1-deoxy-D-ribulos-1-ylimino)methylamino]-1-(5-
CC phospho-beta-D-ribosyl)imidazole-4-carboxamide + L-glutamine = 5-
CC amino-1-(5-phospho-beta-D-ribosyl)imidazole-4-carboxamide + D-
CC erythro-1-(imidazol-4-yl)glycerol 3-phosphate + H(+) + L-glutamate;
CC Xref=Rhea:RHEA:24793, ChEBI:CHEBI:15378, ChEBI:CHEBI:29985,
CC ChEBI:CHEBI:58278, ChEBI:CHEBI:58359, ChEBI:CHEBI:58475,
CC ChEBI:CHEBI:58525; EC=4.3.2.10;
CC Evidence={ECO:0000256|ARBA:ARBA00000619,
CC ECO:0000256|PIRNR:PIRNR036936};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + L-glutamine = L-glutamate + NH4(+);
CC Xref=Rhea:RHEA:15889, ChEBI:CHEBI:15377, ChEBI:CHEBI:28938,
CC ChEBI:CHEBI:29985, ChEBI:CHEBI:58359; EC=3.5.1.2;
CC Evidence={ECO:0000256|ARBA:ARBA00001062,
CC ECO:0000256|PIRNR:PIRNR036936};
CC -!- PATHWAY: Amino-acid biosynthesis; L-histidine biosynthesis; L-histidine
CC from 5-phospho-alpha-D-ribose 1-diphosphate: step 5/9.
CC {ECO:0000256|ARBA:ARBA00005091, ECO:0000256|PIRNR:PIRNR036936}.
CC -!- SIMILARITY: Belongs to the HisA/HisF family.
CC {ECO:0000256|RuleBase:RU003657}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the HisA/HisF family.
CC {ECO:0000256|PIRNR:PIRNR036936}.
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DR EMBL; CM000608; EEC49671.1; -; Genomic_DNA.
DR RefSeq; XP_002178973.1; XM_002178937.1.
DR AlphaFoldDB; B7FVQ7; -.
DR STRING; 556484.B7FVQ7; -.
DR PaxDb; 2850-Phatr19324; -.
DR GeneID; 7199911; -.
DR KEGG; pti:PHATRDRAFT_19324; -.
DR eggNOG; KOG0623; Eukaryota.
DR HOGENOM; CLU_037550_0_0_1; -.
DR InParanoid; B7FVQ7; -.
DR OrthoDB; 2782495at2759; -.
DR UniPathway; UPA00031; UER00010.
DR Proteomes; UP000000759; Chromosome 5.
DR GO; GO:0004359; F:glutaminase activity; IEA:UniProtKB-EC.
DR GO; GO:0000107; F:imidazoleglycerol-phosphate synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0016833; F:oxo-acid-lyase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0000105; P:histidine biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd01748; GATase1_IGP_Synthase; 1.
DR CDD; cd04731; HisF; 1.
DR Gene3D; 3.40.50.880; -; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR HAMAP; MF_00278; HisH; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR029062; Class_I_gatase-like.
DR InterPro; IPR017926; GATASE.
DR InterPro; IPR006062; His_biosynth.
DR InterPro; IPR004651; HisF.
DR InterPro; IPR014640; IGPS_HisHF.
DR InterPro; IPR010139; Imidazole-glycPsynth_HisH.
DR InterPro; IPR011060; RibuloseP-bd_barrel.
DR NCBIfam; TIGR01855; IMP_synth_hisH; 1.
DR PANTHER; PTHR21235:SF2; IMIDAZOLE GLYCEROL PHOSPHATE SYNTHASE HISHF; 1.
DR PANTHER; PTHR21235; IMIDAZOLE GLYCEROL PHOSPHATE SYNTHASE SUBUNIT HISF/H IGP SYNTHASE SUBUNIT HISF/H; 1.
DR Pfam; PF00117; GATase; 1.
DR Pfam; PF00977; His_biosynth; 1.
DR PIRSF; PIRSF036936; IGPS_HisHF; 1.
DR SUPFAM; SSF52317; Class I glutamine amidotransferase-like; 1.
DR SUPFAM; SSF51366; Ribulose-phoshate binding barrel; 1.
DR PROSITE; PS51273; GATASE_TYPE_1; 1.
PE 3: Inferred from homology;
KW Amino-acid biosynthesis {ECO:0000256|ARBA:ARBA00022605,
KW ECO:0000256|PIRNR:PIRNR036936};
KW Glutamine amidotransferase {ECO:0000256|PIRNR:PIRNR036936,
KW ECO:0000256|PROSITE-ProRule:PRU00605};
KW Histidine biosynthesis {ECO:0000256|ARBA:ARBA00023102,
KW ECO:0000256|PIRNR:PIRNR036936};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|PIRNR:PIRNR036936};
KW Lyase {ECO:0000256|ARBA:ARBA00023239, ECO:0000256|PIRNR:PIRNR036936};
KW Multifunctional enzyme {ECO:0000256|PIRNR:PIRNR036936};
KW Reference proteome {ECO:0000313|Proteomes:UP000000759}.
FT DOMAIN 8..206
FT /note="Glutamine amidotransferase"
FT /evidence="ECO:0000259|Pfam:PF00117"
FT REGION 363..364
FT /note="PRFAR binding"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-2"
FT REGION 401..403
FT /note="PRFAR binding"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-2"
FT REGION 477..478
FT /note="PRFAR binding"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-2"
FT REGION 503..504
FT /note="PRFAR binding"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-2"
FT REGION 526..527
FT /note="PRFAR binding"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-2"
FT ACT_SITE 84
FT /note="For GATase activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-1"
FT ACT_SITE 84
FT /note="Nucleophile"
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 194
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 194
FT /note="For GATase activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-1"
FT ACT_SITE 196
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU00605"
FT ACT_SITE 196
FT /note="For GATase activity"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-1"
FT ACT_SITE 237
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-1"
FT ACT_SITE 403
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-1"
FT BINDING 84
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /note="covalent"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-2"
FT BINDING 330
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-2"
FT BINDING 472
FT /ligand="substrate"
FT /evidence="ECO:0000256|PIRSR:PIRSR036936-2"
SQ SEQUENCE 554 AA; 60025 MW; FEA7CD8472010795 CRC64;
MPSFKVSLLD YGAGNVRSVR NAILANGYEI EDITDPAQIA QAKAIIFPGV GSFGSAMRVL
QEKGFDGPLR TYLSAHDRPF LGICLGMQTL FESSDEHEDG RPAIPGLGVI PGKVIKFDST
KIAVPHIGWN GRIVHQESPV LRYVADDEDT YFVHSFYAPV IEENKEWILT TTTYGDQPFV
SAIQRGSVVA TQFHPEKSGS TGLKVLQGFL EVRIAESLDA DIKTETKLTK RVVVALDVRS
NDHGDLVVTK GDQYDVRENH KEGVVEGRGG VRNLGKPVSL ARRYYQEGAD EIAFLNITSF
RQGVIEDMPM LQVLEEASKN IFVPLTVGGG IRSYTEPISG RTWSALEVAS RYFRAGADKV
SMGSDAVHAA EAYVASGGTK TGTTSIEMIS RVYGVQAVVV SIDPKRVYIK SKEEVDSKHV
VVELGDDQLG PTGERLCWYQ CTVKGGREAR NICAVTVCKA CEALGAGEIM LNCIDMDGQC
NGFDLSLMRA VSRAVSIPVI ASSGAGTPGH FTDVFSKTNV QAALAAGMFH RREVEIEDVK
AAMHAHGTAT RKSS
//
