GenomeNet

Database: UniProt
Entry: F7K727_9FIRM
LinkDB: F7K727_9FIRM
Original site: F7K727_9FIRM 
ID   F7K727_9FIRM            Unreviewed;       536 AA.
AC   F7K727;
DT   21-SEP-2011, integrated into UniProtKB/TrEMBL.
DT   21-SEP-2011, sequence version 1.
DT   24-JAN-2024, entry version 63.
DE   RecName: Full=CTP synthase {ECO:0000256|HAMAP-Rule:MF_01227};
DE            EC=6.3.4.2 {ECO:0000256|HAMAP-Rule:MF_01227};
DE   AltName: Full=Cytidine 5'-triphosphate synthase {ECO:0000256|HAMAP-Rule:MF_01227};
DE   AltName: Full=Cytidine triphosphate synthetase {ECO:0000256|HAMAP-Rule:MF_01227};
DE            Short=CTP synthetase {ECO:0000256|HAMAP-Rule:MF_01227};
DE            Short=CTPS {ECO:0000256|HAMAP-Rule:MF_01227};
DE   AltName: Full=UTP--ammonia ligase {ECO:0000256|HAMAP-Rule:MF_01227};
GN   Name=pyrG {ECO:0000256|HAMAP-Rule:MF_01227};
GN   ORFNames=HMPREF0994_01656 {ECO:0000313|EMBL:EGN41773.1};
OS   Lachnospiraceae bacterium 3_1_57FAA_CT1.
OC   Bacteria; Bacillota; Clostridia; Eubacteriales; Lachnospiraceae.
OX   NCBI_TaxID=658086 {ECO:0000313|EMBL:EGN41773.1, ECO:0000313|Proteomes:UP000003336};
RN   [1] {ECO:0000313|Proteomes:UP000003336}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=3_1_57FAA_CT1 {ECO:0000313|Proteomes:UP000003336};
RG   The Broad Institute Genome Sequencing Platform;
RA   Earl A., Ward D., Feldgarden M., Gevers D., Daigneault M., Strauss J.,
RA   Allen-Vercoe E., Young S.K., Zeng Q., Gargeya S., Fitzgerald M., Haas B.,
RA   Abouelleil A., Alvarado L., Arachchi H.M., Berlin A., Brown A.,
RA   Chapman S.B., Chen Z., Dunbar C., Freedman E., Gearin G., Gellesch M.,
RA   Goldberg J., Griggs A., Gujja S., Heiman D., Howarth C., Larson L., Lui A.,
RA   MacDonald P.J.P., Mehta T., Montmayeur A., Murphy C., Neiman D.,
RA   Pearson M., Priest M., Roberts A., Saif S., Shea T., Shenoy N., Sisk P.,
RA   Stolte C., Sykes S., Wortman J., Nusbaum C., Birren B.;
RT   "The Genome Sequence of Lachnospiraceae bacterium 2_1_58FAA.";
RL   Submitted (MAY-2011) to the EMBL/GenBank/DDBJ databases.
RN   [2] {ECO:0000313|EMBL:EGN41773.1, ECO:0000313|Proteomes:UP000003336}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=3_1_57FAA_CT1 {ECO:0000313|EMBL:EGN41773.1,
RC   ECO:0000313|Proteomes:UP000003336};
RG   The Broad Institute Genomics Platform;
RA   Earl A., Ward D., Feldgarden M., Gevers D., Daigneault M., Strauss J.,
RA   Allen-Vercoe E., Walker B., Young S., Zeng Q., Gargeya S., Fitzgerald M.,
RA   Haas B., Abouelleil A., Allen A.W., Alvarado L., Arachchi H.M.,
RA   Berlin A.M., Chapman S.B., Gainer-Dewar J., Goldberg J., Griggs A.,
RA   Gujja S., Hansen M., Howarth C., Imamovic A., Ireland A., Larimer J.,
RA   McCowan C., Murphy C., Pearson M., Poon T.W., Priest M., Roberts A.,
RA   Saif S., Shea T., Sisk P., Sykes S., Wortman J., Nusbaum C., Birren B.;
RT   "The Genome Sequence of Lachnospiraceae bacterium 3-1-57FAA CT1.";
RL   Submitted (APR-2013) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the ATP-dependent amination of UTP to CTP with
CC       either L-glutamine or ammonia as the source of nitrogen. Regulates
CC       intracellular CTP levels through interactions with the four
CC       ribonucleotide triphosphates. {ECO:0000256|HAMAP-Rule:MF_01227}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O + L-glutamine + UTP = ADP + CTP + 2 H(+) + L-
CC         glutamate + phosphate; Xref=Rhea:RHEA:26426, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:29985, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:37563, ChEBI:CHEBI:43474, ChEBI:CHEBI:46398,
CC         ChEBI:CHEBI:58359, ChEBI:CHEBI:456216; EC=6.3.4.2;
CC         Evidence={ECO:0000256|ARBA:ARBA00000314, ECO:0000256|HAMAP-
CC         Rule:MF_01227};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + NH4(+) + UTP = ADP + CTP + 2 H(+) + phosphate;
CC         Xref=Rhea:RHEA:16597, ChEBI:CHEBI:15378, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:37563, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:46398, ChEBI:CHEBI:456216; Evidence={ECO:0000256|HAMAP-
CC         Rule:MF_01227};
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; Evidence={ECO:0000256|HAMAP-
CC         Rule:MF_01227};
CC   -!- ACTIVITY REGULATION: Allosterically activated by GTP, when glutamine is
CC       the substrate; GTP has no effect on the reaction when ammonia is the
CC       substrate. The allosteric effector GTP functions by stabilizing the
CC       protein conformation that binds the tetrahedral intermediate(s) formed
CC       during glutamine hydrolysis. Inhibited by the product CTP, via
CC       allosteric rather than competitive inhibition. {ECO:0000256|HAMAP-
CC       Rule:MF_01227}.
CC   -!- PATHWAY: Pyrimidine metabolism; CTP biosynthesis via de novo pathway;
CC       CTP from UDP: step 2/2. {ECO:0000256|ARBA:ARBA00005171,
CC       ECO:0000256|HAMAP-Rule:MF_01227}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_01227}.
CC   -!- MISCELLANEOUS: CTPSs have evolved a hybrid strategy for distinguishing
CC       between UTP and CTP. The overlapping regions of the product feedback
CC       inhibitory and substrate sites recognize a common feature in both
CC       compounds, the triphosphate moiety. To differentiate isosteric
CC       substrate and product pyrimidine rings, an additional pocket far from
CC       the expected kinase/ligase catalytic site, specifically recognizes the
CC       cytosine and ribose portions of the product inhibitor.
CC       {ECO:0000256|HAMAP-Rule:MF_01227}.
CC   -!- SIMILARITY: Belongs to the CTP synthase family.
CC       {ECO:0000256|ARBA:ARBA00007533, ECO:0000256|HAMAP-Rule:MF_01227}.
CC   -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC       feature annotation. {ECO:0000256|HAMAP-Rule:MF_01227}.
CC   -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC       whole genome shotgun (WGS) entry which is preliminary data.
CC       {ECO:0000313|EMBL:EGN41773.1}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; ACTP02000007; EGN41773.1; -; Genomic_DNA.
DR   AlphaFoldDB; F7K727; -.
DR   STRING; 658086.HMPREF0994_01656; -.
DR   PATRIC; fig|658086.3.peg.1810; -.
DR   eggNOG; COG0504; Bacteria.
DR   HOGENOM; CLU_011675_5_0_9; -.
DR   UniPathway; UPA00159; UER00277.
DR   Proteomes; UP000003336; Unassembled WGS sequence.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0003883; F:CTP synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0004359; F:glutaminase activity; IEA:RHEA.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0044210; P:'de novo' CTP biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0006541; P:glutamine metabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd03113; CTPS_N; 1.
DR   CDD; cd01746; GATase1_CTP_Synthase; 1.
DR   Gene3D; 3.40.50.880; -; 1.
DR   Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR   HAMAP; MF_01227; PyrG; 1.
DR   InterPro; IPR029062; Class_I_gatase-like.
DR   InterPro; IPR004468; CTP_synthase.
DR   InterPro; IPR017456; CTP_synthase_N.
DR   InterPro; IPR017926; GATASE.
DR   InterPro; IPR033828; GATase1_CTP_Synthase.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   NCBIfam; TIGR00337; PyrG; 1.
DR   PANTHER; PTHR11550; CTP SYNTHASE; 1.
DR   PANTHER; PTHR11550:SF0; CTP SYNTHASE-RELATED; 1.
DR   Pfam; PF06418; CTP_synth_N; 1.
DR   Pfam; PF00117; GATase; 1.
DR   SUPFAM; SSF52317; Class I glutamine amidotransferase-like; 1.
DR   SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR   PROSITE; PS51273; GATASE_TYPE_1; 1.
PE   3: Inferred from homology;
KW   ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW   Rule:MF_01227};
KW   Glutamine amidotransferase {ECO:0000256|ARBA:ARBA00022962,
KW   ECO:0000256|HAMAP-Rule:MF_01227};
KW   Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_01227};
KW   Magnesium {ECO:0000256|HAMAP-Rule:MF_01227};
KW   Metal-binding {ECO:0000256|HAMAP-Rule:MF_01227};
KW   Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW   Rule:MF_01227};
KW   Pyrimidine biosynthesis {ECO:0000256|ARBA:ARBA00022975, ECO:0000256|HAMAP-
KW   Rule:MF_01227}; Reference proteome {ECO:0000313|Proteomes:UP000003336}.
FT   DOMAIN          4..267
FT                   /note="CTP synthase N-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF06418"
FT   DOMAIN          303..527
FT                   /note="Glutamine amidotransferase"
FT                   /evidence="ECO:0000259|Pfam:PF00117"
FT   REGION          1..268
FT                   /note="Amidoligase domain"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   ACT_SITE        382
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000256|PROSITE-ProRule:PRU00605"
FT   ACT_SITE        382
FT                   /note="Nucleophile; for glutamine hydrolysis"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   ACT_SITE        508
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227,
FT                   ECO:0000256|PROSITE-ProRule:PRU00605"
FT   ACT_SITE        510
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227,
FT                   ECO:0000256|PROSITE-ProRule:PRU00605"
FT   BINDING         14
FT                   /ligand="CTP"
FT                   /ligand_id="ChEBI:CHEBI:37563"
FT                   /ligand_note="allosteric inhibitor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         14
FT                   /ligand="UTP"
FT                   /ligand_id="ChEBI:CHEBI:46398"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         15..20
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         72
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         72
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         142
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         149..151
FT                   /ligand="CTP"
FT                   /ligand_id="ChEBI:CHEBI:37563"
FT                   /ligand_note="allosteric inhibitor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         189..194
FT                   /ligand="CTP"
FT                   /ligand_id="ChEBI:CHEBI:37563"
FT                   /ligand_note="allosteric inhibitor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         189..194
FT                   /ligand="UTP"
FT                   /ligand_id="ChEBI:CHEBI:46398"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         225
FT                   /ligand="CTP"
FT                   /ligand_id="ChEBI:CHEBI:37563"
FT                   /ligand_note="allosteric inhibitor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         225
FT                   /ligand="UTP"
FT                   /ligand_id="ChEBI:CHEBI:46398"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         243
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         355
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         383..386
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         406
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
FT   BINDING         463
FT                   /ligand="L-glutamine"
FT                   /ligand_id="ChEBI:CHEBI:58359"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01227"
SQ   SEQUENCE   536 AA;  59517 MW;  EFD56FA5B111608D CRC64;
     MAVKYVFVTG GVVSGLGKGI TAASLGRLLK ARGYKVTMQK FDPYINIDPG TMNPIQHGEV
     FVTDDGTETD LDLGHYERFI DENLGKNSNV TTGKIYWSVL QKERRGDYGG GTVQVIPHIT
     NEIKSRFYRN FTDDDTRIAI IEVGGTVGDI ESQPFLESIR QFQHEAGHEN VILIHVTLIP
     YLRASQELKT KPTQASVKEL QGMGIQPDII VCRSEIPLNQ GIKDKIALFC NVPSAHVLQN
     LDVEYLYEAP LAMEKEHLAD VVCECLCLEN REPDLTDWTS MVEALRSPED EVTIALVGKY
     IQLHDAYISV VEALKHGGIS NRVNVNIKWV DSELVTEANA DEYLSDVDGI LVPGGFGDRG
     IDGKIQAISY ARTHNIPYLG LCLGMQLAIV EYARNVLGYS DAHSVELDPS TTHPVIALMP
     DQNGIEDIGG TLRLGSYPCV LDKSSKAFAL YGDETIYERH RHRYEVNNDY RGLLASHGMK
     LSGLSPDGRI VEMCELPEHP FFVATQAHPE LKSRPNRPHP LFRGFIAAAL QMKNNK
//
DBGET integrated database retrieval system