PYRG_CORGL
ID PYRG_CORGL Reviewed; 554 AA.
AC Q8NQL7;
DT 19-OCT-2002, integrated into UniProtKB/Swiss-Prot.
DT 19-OCT-2002, sequence version 1.
DT 03-AUG-2022, entry version 116.
DE RecName: Full=CTP synthase {ECO:0000255|HAMAP-Rule:MF_01227};
DE EC=6.3.4.2 {ECO:0000255|HAMAP-Rule:MF_01227};
DE AltName: Full=Cytidine 5'-triphosphate synthase {ECO:0000255|HAMAP-Rule:MF_01227};
DE AltName: Full=Cytidine triphosphate synthetase {ECO:0000255|HAMAP-Rule:MF_01227};
DE Short=CTP synthetase {ECO:0000255|HAMAP-Rule:MF_01227};
DE Short=CTPS {ECO:0000255|HAMAP-Rule:MF_01227};
DE AltName: Full=UTP--ammonia ligase {ECO:0000255|HAMAP-Rule:MF_01227};
GN Name=pyrG {ECO:0000255|HAMAP-Rule:MF_01227};
GN OrderedLocusNames=Cgl1417, cg1606;
OS Corynebacterium glutamicum (strain ATCC 13032 / DSM 20300 / BCRC 11384 /
OS JCM 1318 / LMG 3730 / NCIMB 10025).
OC Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC Corynebacterium.
OX NCBI_TaxID=196627;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 13032 / DSM 20300 / BCRC 11384 / JCM 1318 / LMG 3730 / NCIMB
RC 10025;
RX PubMed=12743753; DOI=10.1007/s00253-003-1328-1;
RA Ikeda M., Nakagawa S.;
RT "The Corynebacterium glutamicum genome: features and impacts on
RT biotechnological processes.";
RL Appl. Microbiol. Biotechnol. 62:99-109(2003).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 13032 / DSM 20300 / BCRC 11384 / JCM 1318 / LMG 3730 / NCIMB
RC 10025;
RX PubMed=12948626; DOI=10.1016/s0168-1656(03)00154-8;
RA Kalinowski J., Bathe B., Bartels D., Bischoff N., Bott M., Burkovski A.,
RA Dusch N., Eggeling L., Eikmanns B.J., Gaigalat L., Goesmann A.,
RA Hartmann M., Huthmacher K., Kraemer R., Linke B., McHardy A.C., Meyer F.,
RA Moeckel B., Pfefferle W., Puehler A., Rey D.A., Rueckert C., Rupp O.,
RA Sahm H., Wendisch V.F., Wiegraebe I., Tauch A.;
RT "The complete Corynebacterium glutamicum ATCC 13032 genome sequence and its
RT impact on the production of L-aspartate-derived amino acids and vitamins.";
RL J. Biotechnol. 104:5-25(2003).
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:0000255|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:0000255|HAMAP-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:0000255|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:0000255|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:0000255|HAMAP-
CC Rule:MF_01227}.
CC -!- PATHWAY: Pyrimidine metabolism; CTP biosynthesis via de novo pathway;
CC CTP from UDP: step 2/2. {ECO:0000255|HAMAP-Rule:MF_01227}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000255|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:0000255|HAMAP-Rule:MF_01227}.
CC -!- SIMILARITY: Belongs to the CTP synthase family. {ECO:0000255|HAMAP-
CC Rule:MF_01227}.
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DR EMBL; BA000036; BAB98810.1; -; Genomic_DNA.
DR EMBL; BX927152; CAF21427.1; -; Genomic_DNA.
DR RefSeq; NP_600635.1; NC_003450.3.
DR RefSeq; WP_003856281.1; NC_006958.1.
DR AlphaFoldDB; Q8NQL7; -.
DR SMR; Q8NQL7; -.
DR STRING; 196627.cg1606; -.
DR MEROPS; C26.964; -.
DR GeneID; 58309389; -.
DR KEGG; cgb:cg1606; -.
DR KEGG; cgl:Cgl1417; -.
DR PATRIC; fig|196627.13.peg.1385; -.
DR eggNOG; COG0504; Bacteria.
DR HOGENOM; CLU_011675_5_0_11; -.
DR OMA; EFNNAYR; -.
DR UniPathway; UPA00159; UER00277.
DR Proteomes; UP000000582; Chromosome.
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-KW.
DR CDD; cd03113; CTPS_N; 1.
DR CDD; cd01746; GATase1_CTP_Synthase; 1.
DR Gene3D; 3.40.50.300; -; 1.
DR Gene3D; 3.40.50.880; -; 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 PANTHER; PTHR11550; PTHR11550; 1.
DR Pfam; PF06418; CTP_synth_N; 1.
DR Pfam; PF00117; GATase; 1.
DR SUPFAM; SSF52317; SSF52317; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
DR TIGRFAMs; TIGR00337; PyrG; 1.
DR PROSITE; PS51273; GATASE_TYPE_1; 1.
PE 3: Inferred from homology;
KW ATP-binding; Glutamine amidotransferase; Ligase; Magnesium; Metal-binding;
KW Nucleotide-binding; Pyrimidine biosynthesis; Reference proteome.
FT CHAIN 1..554
FT /note="CTP synthase"
FT /id="PRO_0000138181"
FT DOMAIN 304..553
FT /note="Glutamine amidotransferase type-1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT REGION 1..279
FT /note="Amidoligase domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT ACT_SITE 394
FT /note="Nucleophile; for glutamine hydrolysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT ACT_SITE 526
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT ACT_SITE 528
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 21
FT /ligand="CTP"
FT /ligand_id="ChEBI:CHEBI:37563"
FT /ligand_note="allosteric inhibitor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 21
FT /ligand="UTP"
FT /ligand_id="ChEBI:CHEBI:46398"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 22..27
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 79
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 79
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 153
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 160..162
FT /ligand="CTP"
FT /ligand_id="ChEBI:CHEBI:37563"
FT /ligand_note="allosteric inhibitor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 200..205
FT /ligand="CTP"
FT /ligand_id="ChEBI:CHEBI:37563"
FT /ligand_note="allosteric inhibitor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 200..205
FT /ligand="UTP"
FT /ligand_id="ChEBI:CHEBI:46398"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 236
FT /ligand="CTP"
FT /ligand_id="ChEBI:CHEBI:37563"
FT /ligand_note="allosteric inhibitor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 236
FT /ligand="UTP"
FT /ligand_id="ChEBI:CHEBI:46398"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 367
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 395..398
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 417
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
FT BINDING 478
FT /ligand="L-glutamine"
FT /ligand_id="ChEBI:CHEBI:58359"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01227"
SQ SEQUENCE 554 AA; 60574 MW; 5A298798580D61FA CRC64;
MTSSRKVRPT KHIFVTGGVV SSLGKGLTAA SLGQLLIARG LSVTMQKLDP YLNVDPGTMN
PFEHGEVFVT EDGAETDLDL GHYERFLDRN LGLNANVTTG KVYSTVIAKE RRGEYLGKTV
QVIPHITDEI KARILSMGEP DAHGNAPDVV ISEVGGTVGD IESQPFLEAA RQVRHEIGRE
NCFFIHCSLV PYLATSGELK TKPTQHSVAE LRGIGILPDA LVLRCDREVP QGLKDKIAMM
CDVDYEGVVS CPDSSSIYNI PDVLYREHLD TFIIRRLGLP FRDVDWSTWH DLLERVNNPR
HELTVGIVGK YIDLPDAYLS VVEAVRAAGY ANWTRTNIKW ITSDDCETPS GAMKALSGLD
AIVVPGGFGI RGIEGKIGAI TFAREHKIPL LGLCLGLQCT VIEAARQAGL EQASSTEFDP
AATQPVIATM EEQKAAVSGE ADLGGTMRLG AYPATLEEGS LVAELYGTTE VSERHRHRYE
VNNAYRAQIA EGSDLVFSGT SPDGHLVEFV EYPKEVHPYL VATQAHPEYK SRPTHAHPLF
YGLVKTALEL RVHP
