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Protein

Phosphoenolpyruvate carboxylase

Gene

ppc

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score:

Annotation score:5 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>
-Experimental evidence at protein leveli <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

Forms oxaloacetate, a four-carbon dicarboxylic acid source for the tricarboxylic acid cycle.

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 ‘Function’ section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

Mg2+By similarity

<p>This subsection of the ‘Function’ 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

The enzyme has distinct binding sites for each of the allosteric effectors such as acetyl-CoA, fructose 1,6-bisphosphate, guanosine 3'-diphosphate 5'-diphosphate, long chain fatty acids, and L-aspartate.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ 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 sitei1381
Active sitei546By similarity1

<p>The <a href="http://www.geneontology.org/">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

  • magnesium ion binding Source: UniProtKB-UniRule
  • phosphoenolpyruvate carboxylase activity Source: EcoCyc

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">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 functionAllosteric enzyme, Lyase
Biological processCarbon dioxide fixation
LigandMagnesium

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
EcoCyc:PEPCARBOX-MONOMER
MetaCyc:PEPCARBOX-MONOMER

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
4.1.1.31 2026

<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 href="http://www.uniprot.org/help/names_and_taxonomy_section">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:
Phosphoenolpyruvate carboxylase (EC:4.1.1.31)
Short name:
PEPC
Short name:
PEPCase
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:ppc
Synonyms:glu
Ordered Locus Names:b3956, JW3928
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiEscherichia coli (strain K12)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri83333 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">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
  • UP000000318 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">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: Chromosome
  • UP000000625 Componenti: Chromosome

Organism-specific databases

Escherichia coli strain K12 genome database

More...
EcoGenei
EG10756 ppc

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

GO - Cellular componenti

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/manual/pathology_and_biotech_section">'Pathology and Biotech'</a> section describes the effect of the experimental mutation of one or more amino acid(s) on the biological properties of the protein.<p><a href='/help/mutagen' target='_top'>More...</a></p>Mutagenesisi138H → N: Loss of activity. 1 Publication1
Mutagenesisi579H → N: 29% of wild-type activity. 1 Publication1
Mutagenesisi579H → P: 5.4% of wild-type activity. 1 Publication1
Mutagenesisi587R → S: Loss of activity. 1 Publication1

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section describes the extent of a polypeptide chain in the mature protein following processing.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001665921 – 883Phosphoenolpyruvate carboxylaseAdd BLAST883

Proteomic databases

Encyclopedia of Proteome Dynamics

More...
EPDi
P00864

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P00864

PRoteomics IDEntifications database

More...
PRIDEi
P00864

<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 href="http://www.uniprot.org/help/interaction_section">'Interaction'</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 href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homotetramer.

Protein-protein interaction databases

The Biological General Repository for Interaction Datasets (BioGrid)

More...
BioGridi
4262649, 12 interactors

Database of interacting proteins

More...
DIPi
DIP-10538N

Protein interaction database and analysis system

More...
IntActi
P00864, 3 interactors

STRING: functional protein association networks

More...
STRINGi
316385.ECDH10B_4144

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1883
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
P00864

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...
SMRi
P00864

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
P00864

<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

<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 PEPCase type 1 family.Curated

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105CCA Bacteria
COG2352 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000238648

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P00864

KEGG Orthology (KO)

More...
KOi
K01595

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P00864

Family and domain databases

HAMAP database of protein families

More...
HAMAPi
MF_00595 PEPcase_type1, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR021135 PEP_COase
IPR022805 PEP_COase_bac/pln-type
IPR018129 PEP_COase_Lys_AS
IPR033129 PEPCASE_His_AS
IPR015813 Pyrv/PenolPyrv_Kinase-like_dom

The PANTHER Classification System

More...
PANTHERi
PTHR30523 PTHR30523, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00311 PEPcase, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00150 PEPCARBXLASE

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF51621 SSF51621, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00781 PEPCASE_1, 1 hit
PS00393 PEPCASE_2, 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 href="http://www.uniprot.org/help/sequence_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

P00864-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MNEQYSALRS NVSMLGKVLG ETIKDALGEH ILERVETIRK LSKSSRAGND
60 70 80 90 100
ANRQELLTTL QNLSNDELLP VARAFSQFLN LANTAEQYHS ISPKGEAASN
110 120 130 140 150
PEVIARTLRK LKNQPELSED TIKKAVESLS LELVLTAHPT EITRRTLIHK
160 170 180 190 200
MVEVNACLKQ LDNKDIADYE HNQLMRRLRQ LIAQSWHTDE IRKLRPSPVD
210 220 230 240 250
EAKWGFAVVE NSLWQGVPNY LRELNEQLEE NLGYKLPVEF VPVRFTSWMG
260 270 280 290 300
GDRDGNPNVT ADITRHVLLL SRWKATDLFL KDIQVLVSEL SMVEATPELL
310 320 330 340 350
ALVGEEGAAE PYRYLMKNLR SRLMATQAWL EARLKGEELP KPEGLLTQNE
360 370 380 390 400
ELWEPLYACY QSLQACGMGI IANGDLLDTL RRVKCFGVPL VRIDIRQEST
410 420 430 440 450
RHTEALGELT RYLGIGDYES WSEADKQAFL IRELNSKRPL LPRNWQPSAE
460 470 480 490 500
TREVLDTCQV IAEAPQGSIA AYVISMAKTP SDVLAVHLLL KEAGIGFAMP
510 520 530 540 550
VAPLFETLDD LNNANDVMTQ LLNIDWYRGL IQGKQMVMIG YSDSAKDAGV
560 570 580 590 600
MAASWAQYQA QDALIKTCEK AGIELTLFHG RGGSIGRGGA PAHAALLSQP
610 620 630 640 650
PGSLKGGLRV TEQGEMIRFK YGLPEITVSS LSLYTGAILE ANLLPPPEPK
660 670 680 690 700
ESWRRIMDEL SVISCDVYRG YVRENKDFVP YFRSATPEQE LGKLPLGSRP
710 720 730 740 750
AKRRPTGGVE SLRAIPWIFA WTQNRLMLPA WLGAGTALQK VVEDGKQSEL
760 770 780 790 800
EAMCRDWPFF STRLGMLEMV FAKADLWLAE YYDQRLVDKA LWPLGKELRN
810 820 830 840 850
LQEEDIKVVL AIANDSHLMA DLPWIAESIQ LRNIYTDPLN VLQAELLHRS
860 870 880
RQAEKEGQEP DPRVEQALMV TIAGIAAGMR NTG
Length:883
Mass (Da):99,063
Last modified:July 21, 1986 - 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 href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i2620A776CF1F2EBC
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
X05903 Genomic DNA Translation: CAA29332.1
X55417 Genomic DNA No translation available.
U00006 Genomic DNA Translation: AAC43062.1
U00096 Genomic DNA Translation: AAC76938.1
AP009048 Genomic DNA Translation: BAE77355.1
X01700 Genomic DNA Translation: CAA25847.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A01083 QYEC

NCBI Reference Sequences

More...
RefSeqi
NP_418391.1, NC_000913.3
WP_001005586.1, NZ_LN832404.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC76938; AAC76938; b3956
BAE77355; BAE77355; BAE77355

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
948457

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ecj:JW3928
eco:b3956

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|1411691.4.peg.2749

<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 href="http://www.uniprot.org/help/uniref">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

<p>This subsection of the <a href="http://www.uniprot.org/manual/cross_references_section">Cross-references</a> section provides links to various web resources that are relevant for a specific protein.<p><a href='/help/web_resource' target='_top'>More...</a></p>Web resourcesi

Worthington enzyme manual

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X05903 Genomic DNA Translation: CAA29332.1
X55417 Genomic DNA No translation available.
U00006 Genomic DNA Translation: AAC43062.1
U00096 Genomic DNA Translation: AAC76938.1
AP009048 Genomic DNA Translation: BAE77355.1
X01700 Genomic DNA Translation: CAA25847.1
PIRiA01083 QYEC
RefSeqiNP_418391.1, NC_000913.3
WP_001005586.1, NZ_LN832404.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1FIYX-ray2.80A1-883[»]
1JQNX-ray2.35A1-883[»]
1QB4X-ray2.60A1-883[»]
ProteinModelPortaliP00864
SMRiP00864
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi4262649, 12 interactors
DIPiDIP-10538N
IntActiP00864, 3 interactors
STRINGi316385.ECDH10B_4144

Proteomic databases

EPDiP00864
PaxDbiP00864
PRIDEiP00864

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAC76938; AAC76938; b3956
BAE77355; BAE77355; BAE77355
GeneIDi948457
KEGGiecj:JW3928
eco:b3956
PATRICifig|1411691.4.peg.2749

Organism-specific databases

EchoBASE - an integrated post-genomic database for E. coli

More...
EchoBASEi
EB0749
EcoGeneiEG10756 ppc

Phylogenomic databases

eggNOGiENOG4105CCA Bacteria
COG2352 LUCA
HOGENOMiHOG000238648
InParanoidiP00864
KOiK01595
PhylomeDBiP00864

Enzyme and pathway databases

BioCyciEcoCyc:PEPCARBOX-MONOMER
MetaCyc:PEPCARBOX-MONOMER
BRENDAi4.1.1.31 2026

Miscellaneous databases

EvolutionaryTraceiP00864

Protein Ontology

More...
PROi
PR:P00864

Family and domain databases

HAMAPiMF_00595 PEPcase_type1, 1 hit
InterProiView protein in InterPro
IPR021135 PEP_COase
IPR022805 PEP_COase_bac/pln-type
IPR018129 PEP_COase_Lys_AS
IPR033129 PEPCASE_His_AS
IPR015813 Pyrv/PenolPyrv_Kinase-like_dom
PANTHERiPTHR30523 PTHR30523, 1 hit
PfamiView protein in Pfam
PF00311 PEPcase, 1 hit
PRINTSiPR00150 PEPCARBXLASE
SUPFAMiSSF51621 SSF51621, 1 hit
PROSITEiView protein in PROSITE
PS00781 PEPCASE_1, 1 hit
PS00393 PEPCASE_2, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
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 nameiCAPP_ECOLI
<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: P00864
Secondary accession number(s): Q2M8Q1
<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 href="http://www.uniprot.org/help/canonical_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: July 21, 1986
Last modified: December 5, 2018
This is version 167 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 statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<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

3D-structure, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
  3. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
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