ID A0A1P8WAS0_9PLAN Unreviewed; 540 AA. AC A0A1P8WAS0; DT 12-APR-2017, integrated into UniProtKB/TrEMBL. DT 12-APR-2017, sequence version 1. DT 10-MAY-2017, entry version 2. 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 ECO:0000313|EMBL:APZ91158.1}; GN ORFNames=Fuma_00744 {ECO:0000313|EMBL:APZ91158.1}; OS Fuerstia marisgermanicae. OC Bacteria; Planctomycetes; Planctomycetia; Planctomycetales; OC Planctomycetaceae; Fuerstia. OX NCBI_TaxID=1891926 {ECO:0000313|EMBL:APZ91158.1, ECO:0000313|Proteomes:UP000187735}; RN [1] {ECO:0000313|EMBL:APZ91158.1, ECO:0000313|Proteomes:UP000187735} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=NH11 {ECO:0000313|EMBL:APZ91158.1, RC ECO:0000313|Proteomes:UP000187735}; RX PubMed=28066393; DOI=10.3389/fmicb.2016.02079; RA Kohn T., Heuer A., Jogler M., Vollmers J., Boedeker C., Bunk B., RA Rast P., Borchert D., Glockner I., Freese H.M., Klenk H.P., RA Overmann J., Kaster A.K., Rohde M., Wiegand S., Jogler C.; RT "Fuerstia marisgermanicae gen. nov., sp. nov., an Unusual Member of RT the Phylum Planctomycetes from the German Wadden Sea."; RL Front. Microbiol. 7:2079-2079(2016). 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: ATP + UTP + L-glutamine = ADP + phosphate + CC CTP + L-glutamate. {ECO:0000256|HAMAP-Rule:MF_01227, CC ECO:0000256|SAAS:SAAS00710710}. CC -!- ENZYME REGULATION: Allosterically activated by GTP, when glutamine CC is the substrate; GTP has no effect on the reaction when ammonia CC is the substrate. The allosteric effector GTP functions by CC stabilizing the protein conformation that binds the tetrahedral CC intermediate(s) formed during glutamine hydrolysis. Inhibited by CC the product CTP, via allosteric rather than competitive CC inhibition. {ECO:0000256|HAMAP-Rule:MF_01227}. CC -!- PATHWAY: Pyrimidine metabolism; CTP biosynthesis via de novo CC pathway; CTP from UDP: step 2/2. {ECO:0000256|HAMAP-Rule:MF_01227, CC ECO:0000256|SAAS:SAAS00710815}. CC -!- SUBUNIT: Homotetramer. {ECO:0000256|HAMAP-Rule:MF_01227, CC ECO:0000256|SAAS:SAAS00710816}. CC -!- MISCELLANEOUS: CTPSs have evolved a hybrid strategy for CC distinguishing between UTP and CTP. The overlapping regions of the CC product feedback inhibitory and substrate sites recognize a common CC feature in both compounds, the triphosphate moiety. To CC differentiate isosteric substrate and product pyrimidine rings, an CC additional pocket far from the expected kinase/ligase catalytic CC site, specifically recognizes the cytosine and ribose portions of CC the product inhibitor. {ECO:0000256|HAMAP-Rule:MF_01227}. CC -!- SIMILARITY: Belongs to the CTP synthase family. CC {ECO:0000256|HAMAP-Rule:MF_01227, ECO:0000256|SAAS:SAAS00710794}. CC -!- CAUTION: Lacks conserved residue(s) required for the propagation CC of feature annotation. {ECO:0000256|HAMAP-Rule:MF_01227}. 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; CP017641; APZ91158.1; -; Genomic_DNA. DR RefSeq; WP_077022962.1; NZ_CP017641.1. DR RefSeq; WP_077022962.1; NZ_CP017641.1. DR UniPathway; UPA00159; UER00277. DR Proteomes; UP000187735; Chromosome. DR GO; GO:0003883; F:CTP synthase activity; IEA:UniProtKB-EC. DR CDD; cd01746; GATase1_CTP_Synthase; 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 {ECO:0000256|HAMAP-Rule:MF_01227, KW ECO:0000256|SAAS:SAAS00710699}; KW Complete proteome {ECO:0000313|Proteomes:UP000187735}; KW Glutamine amidotransferase {ECO:0000256|HAMAP-Rule:MF_01227, KW ECO:0000256|SAAS:SAAS00710676}; KW Ligase {ECO:0000256|HAMAP-Rule:MF_01227, KW ECO:0000256|SAAS:SAAS00710762, ECO:0000313|EMBL:APZ91158.1}; KW Magnesium {ECO:0000256|HAMAP-Rule:MF_01227, KW ECO:0000256|SAAS:SAAS00710689}; KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01227, KW ECO:0000256|SAAS:SAAS00710675}; KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_01227, KW ECO:0000256|SAAS:SAAS00710810}; KW Pyrimidine biosynthesis {ECO:0000256|HAMAP-Rule:MF_01227, KW ECO:0000256|SAAS:SAAS00710748}. FT DOMAIN 292 534 Glutamine amidotransferase type-1. FT {ECO:0000259|PROSITE:PS51273}. FT NP_BIND 14 19 ATP. {ECO:0000256|HAMAP-Rule:MF_01227}. FT NP_BIND 147 149 Allosteric inhibitor CTP. FT {ECO:0000256|HAMAP-Rule:MF_01227}. FT NP_BIND 187 192 Allosteric inhibitor CTP; alternate. FT {ECO:0000256|HAMAP-Rule:MF_01227}. FT NP_BIND 187 192 UTP; alternate. {ECO:0000256|HAMAP-Rule: FT MF_01227}. FT REGION 1 267 Amidoligase domain. {ECO:0000256|HAMAP- FT Rule:MF_01227}. FT REGION 382 385 L-glutamine binding. {ECO:0000256|HAMAP- FT Rule:MF_01227}. FT ACT_SITE 381 381 Nucleophile; for glutamine hydrolysis. FT {ECO:0000256|HAMAP-Rule:MF_01227}. FT ACT_SITE 507 507 {ECO:0000256|HAMAP-Rule:MF_01227}. FT ACT_SITE 509 509 {ECO:0000256|HAMAP-Rule:MF_01227}. FT METAL 71 71 Magnesium. {ECO:0000256|HAMAP-Rule: FT MF_01227}. FT METAL 140 140 Magnesium. {ECO:0000256|HAMAP-Rule: FT MF_01227}. FT BINDING 13 13 Allosteric inhibitor CTP; alternate. FT {ECO:0000256|HAMAP-Rule:MF_01227}. FT BINDING 13 13 UTP; alternate. {ECO:0000256|HAMAP-Rule: FT MF_01227}. FT BINDING 54 54 L-glutamine. {ECO:0000256|HAMAP-Rule: FT MF_01227}. FT BINDING 71 71 ATP. {ECO:0000256|HAMAP-Rule:MF_01227}. FT BINDING 223 223 Allosteric inhibitor CTP; alternate. FT {ECO:0000256|HAMAP-Rule:MF_01227}. FT BINDING 223 223 UTP; alternate. {ECO:0000256|HAMAP-Rule: FT MF_01227}. FT BINDING 354 354 L-glutamine; via carbonyl oxygen. FT {ECO:0000256|HAMAP-Rule:MF_01227}. FT BINDING 405 405 L-glutamine. {ECO:0000256|HAMAP-Rule: FT MF_01227}. FT BINDING 462 462 L-glutamine; via amide nitrogen. FT {ECO:0000256|HAMAP-Rule:MF_01227}. SQ SEQUENCE 540 AA; 60577 MW; E652BF30541D6C0F CRC64; MTRHIFVTGG VVSSLGKGLT SASIGMLLER RGLTVRMQKL DPYINVDPGT MSPYQHGEVY VLDDGSETDL DLGHYERFTS SPLNRDSNYT TGQIYQTVIE KERRGEYLGR TVQVVPHITD EIKASIRRLA APDVDVVITE LGGTIGDIEG LPFLEAIRQI PLDIGKEKCL FIHLTLVPYL KAAREAKTKP TQHSVQQLRT IGIQPDILVC RTERPIGREH TDKIALFCNV EKRAVIEEVD KEYSIYEVPM GLVEHKLDEL IIEKLGMEAG QLQLDDYREL IHRIRNPRHE VTIAVVGKYI EHRDAYKSIY ESLDHAGFQH STRIIAKRIE AEDLERQGAE ALLKGVDGVL IPGGFGMRGV EGKIQAARYA RENNVPYFGI CLGMQVAVIE FARNVMGLQD ANSSEFDGDT QHPVICLLEE QVGMVEKGGT MRLGSQPCVL AEGSNSLQAY GTVEINERHR HRYEFNPQYR EQYIHAGMAP VGTSPDGGLV EIVEVTDHPW YVAVQYHPEF KSQPNKPHPL FTGFIGAALH QRQTRPKQLV //