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Entry version 9 (11 Dec 2019)
Sequence version 1 (18 Jul 2018)
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Protein

CTP synthase

Gene

pyrG

Organism
Spirosoma oryzae
Status
Unreviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Protein inferred from homologyi <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Catalyzes the ATP-dependent amination of UTP to CTP with either L-glutamine or ammonia as the source of nitrogen. Regulates intracellular CTP levels through interactions with the four ribonucleotide triphosphates.UniRule annotation

Miscellaneous

CTPSs have evolved a hybrid strategy for distinguishing between UTP and CTP. The overlapping regions of the product feedback inhibitory and substrate sites recognize a common feature in both compounds, the triphosphate moiety. To differentiate isosteric substrate and product pyrimidine rings, an additional pocket far from the expected kinase/ligase catalytic site, specifically recognizes the cytosine and ribose portions of the product inhibitor.UniRule annotation

Caution

Lacks conserved residue(s) required for the propagation of feature annotation.UniRule annotation
The sequence shown here is derived from an EMBL/GenBank/DDBJ whole genome shotgun (WGS) entry which is preliminary data.Imported

<p>This subsection of the <a >Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the <a >Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Allosterically activated by GTP, when glutamine is the substrate; GTP has no effect on the reaction when ammonia is the substrate. The allosteric effector GTP functions by stabilizing the protein conformation that binds the tetrahedral intermediate(s) formed during glutamine hydrolysis. Inhibited by the product CTP, via allosteric rather than competitive inhibition.UniRule annotation

<p>This subsection of the <a </a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: CTP biosynthesis via de novo pathway

This protein is involved in step 2 of the subpathway that synthesizes CTP from UDP.UniRule annotationSAAS annotation
Proteins known to be involved in the 2 steps of the subpathway in this organism are:
  1. no protein annotated in this organism
  2. CTP synthase (pyrG)
This subpathway is part of the pathway CTP biosynthesis via de novo pathway, which is itself part of Pyrimidine metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes CTP from UDP, the pathway CTP biosynthesis via de novo pathway and in Pyrimidine metabolism.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a >Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei20Allosteric inhibitor CTP; alternateUniRule annotation1
Binding sitei20UTP; alternateUniRule annotation1
Binding sitei61L-glutamineUniRule annotation1
<p>This subsection of the <a >Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the 'Description' field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi78MagnesiumUniRule annotation1
Binding sitei78ATPUniRule annotation1
Metal bindingi148MagnesiumUniRule annotation1
Binding sitei231Allosteric inhibitor CTP; alternateUniRule annotation1
Binding sitei231UTP; alternateUniRule annotation1
Binding sitei249ATPUniRule annotation1
Binding sitei363L-glutamine; via carbonyl oxygenUniRule annotation1
<p>This subsection of the <a >Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei390NucleophilePROSITE-ProRule annotation1
Active sitei390Nucleophile; for glutamine hydrolysisUniRule annotation1
Binding sitei414L-glutamineUniRule annotation1
Binding sitei471L-glutamine; via amide nitrogenUniRule annotation1
Active sitei516UniRule annotation1
Active sitei518UniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a >Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi21?–?26ATPUniRule annotation6
Nucleotide bindingi155?–?157Allosteric inhibitor CTPUniRule annotation3
Nucleotide bindingi195?–?200Allosteric inhibitor CTP; alternateUniRule annotation6
Nucleotide bindingi195?–?200UTP; alternateUniRule annotation6

<p>The <a >Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a >controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionLigaseUniRule annotationSAAS annotation
Biological processPyrimidine biosynthesisUniRule annotationSAAS annotation
LigandATP-bindingUniRule annotationSAAS annotation, MagnesiumUniRule annotationSAAS annotation, Metal-bindingUniRule annotationSAAS annotation, Nucleotide-binding

Enzyme and pathway databases

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...
UniPathwayi
UPA00159;UER00277

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a >Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
CTP synthaseUniRule annotation (EC:6.3.4.2UniRule annotation)
Alternative name(s):
Cytidine 5'-triphosphate synthaseUniRule annotation
Cytidine triphosphate synthetaseUniRule annotation
Short name:
CTP synthetaseUniRule annotation
Short name:
CTPSUniRule annotation
UTP--ammonia ligaseUniRule annotation
<p>This subsection of the <a >Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:pyrGUniRule annotation
ORF Names:CLV58_11735Imported
<p>This subsection of the <a >Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiSpirosoma oryzaeImported
<p>This subsection of the <a >Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri1469603 [NCBI]
<p>This subsection of the <a >Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteria ? Bacteroidetes ? Cytophagia ? Cytophagales ? Cytophagaceae ? Spirosoma
<p>This subsection of the <a >Names and taxonomy</a> section is present for entries that are part of a <a >proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000238375 <p>A UniProt <a >proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Unassembled WGS sequence

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a </a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a </a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homotetramer.

UniRule annotationSAAS annotation

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a >Family and Domains</a> section describes the position and type of a domain, which is defined as a specific combination of secondary structures organized into a characteristic three-dimensional structure or fold.<p><a href='/help/domain' target='_top'>More...</a></p>Domaini300?–?543Glutamine amidotransferase type-1InterPro annotationAdd BLAST244

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni1?–?274Amidoligase domainUniRule annotationAdd BLAST274
Regioni391?–?394L-glutamine bindingUniRule annotation4
Regioni549?–?571DisorderedSequence analysisAdd BLAST23

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes the position of regions of compositional bias within the protein and the particular amino acids that are over-represented within those regions.<p><a href='/help/compbias' target='_top'>More...</a></p>Compositional biasi549?–?563PolarSequence analysisAdd BLAST15

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the CTP synthase family.UniRule annotationSAAS annotation

Keywords - Domaini

Glutamine amidotransferaseUniRule annotationSAAS annotation

Family and domain databases

Conserved Domains Database

More...
CDDi
cd01746 GATase1_CTP_Synthase?, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.40.50.880?, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_01227 PyrG?, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR029062 Class_I_gatase-like
IPR004468 CTP_synthase
IPR017456 CTP_synthase_N
IPR017926 GATASE
IPR033828 GATase1_CTP_Synthase
IPR027417 P-loop_NTPase

The PANTHER Classification System

More...
PANTHERi
PTHR11550 PTHR11550?, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF06418 CTP_synth_N?, 1 hit
PF00117 GATase?, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF52317 SSF52317?, 1 hit
SSF52540 SSF52540?, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00337 PyrG?, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS51273 GATASE_TYPE_1?, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a >length</a> and <a >molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a >Sequence</a> section indicates if the <a >canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

A0A2T0SLY4-1 [UniParc]FASTAAdd to basket
? Hide
        10         20         30         40         50
MAATGPKSAK YIFVTGGVTS SLGKGIIASS LAKLLQARGL SVTIQKFDPY
60 70 80 90 100
INIDPGTLNP YEHGECYVTD DGAETDLDLG HYERFLNRPT SQANNITTGR
110 120 130 140 150
IYNNVITRER RGDFLGKTVQ VVPHITDEIK RNIRLLGDTG QYDIVITEIG
160 170 180 190 200
GCVGDIESLP FVEAVRQLKF ELGEKDTLVI HLTLVPYLQS AGELKTKPTQ
210 220 230 240 250
HSVRMLLENG VQPDIIVCRT EHPLPQDIRR KIALFCNVQV SSVIEAADAS
260 270 280 290 300
TIYDVPLLMQ KERLDQRALY MMDIYNDKDA DLDEWKSFLG RLKNPGDTVK
310 320 330 340 350
VGLVGKYVEL KDAYKSIAEA FIHAGAQNEC KVQLEWIQSE TLVDENHCAE
360 370 380 390 400
VLSALDAVLV APGFGERGIQ GKINAVRLAR EKGIPFLGIC LGMQMAVIEY
410 420 430 440 450
ARNVMGIADA HSTEMEPETA NPVISLMAGQ KDVTNKGGTM RLGSYTCKLK
460 470 480 490 500
RDSLAHKIYG KATIQERHRH RYEFNNDYLA QFEKAGLRPT GINPDTGLVE
510 520 530 540 550
IVELANHPWF VGVQFHPELK STVLNPHPLF VKFVGAALAY NRQKENAPLS
560 570
ATTDATSGME TTPVETAEVI G
Length:571
Mass (Da):63,051
Last modified:July 18, 2018 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a >Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iBEE72905D751D651
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
PVTE01000017 Genomic DNA Translation: PRY34431.1

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a >UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
PVTE01000017 Genomic DNA Translation: PRY34431.1

3D structure databases

Database of comparative protein structure models

More...
ModBasei
Search...

SWISS-MODEL Interactive Workspace

More...
SWISS-MODEL-Workspacei
Submit a new modelling project...

Enzyme and pathway databases

UniPathwayiUPA00159;UER00277

Family and domain databases

CDDicd01746 GATase1_CTP_Synthase?, 1 hit
Gene3Di3.40.50.880?, 1 hit
HAMAPiMF_01227 PyrG?, 1 hit
InterProiView protein in InterPro
IPR029062 Class_I_gatase-like
IPR004468 CTP_synthase
IPR017456 CTP_synthase_N
IPR017926 GATASE
IPR033828 GATase1_CTP_Synthase
IPR027417 P-loop_NTPase
PANTHERiPTHR11550 PTHR11550?, 1 hit
PfamiView protein in Pfam
PF06418 CTP_synth_N?, 1 hit
PF00117 GATase?, 1 hit
SUPFAMiSSF52317 SSF52317?, 1 hit
SSF52540 SSF52540?, 1 hit
TIGRFAMsiTIGR00337 PyrG?, 1 hit
PROSITEiView protein in PROSITE
PS51273 GATASE_TYPE_1?, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiA0A2T0SLY4_9BACT
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: A0A2T0SLY4
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a >canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/TrEMBL: July 18, 2018
Last sequence update: July 18, 2018
Last modified: December 11, 2019
This is version 9 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiUnreviewed (UniProtKB/TrEMBL)

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

Reference proteomeImported
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