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Entry version 130 (11 Dec 2019)
Sequence version 3 (23 Jan 2007)
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Protein

Potassium-transporting ATPase alpha chain 1

Gene

atp4a

Organism
Xenopus laevis (African clawed frog)
Status
Reviewed-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>
-Experimental evidence at transcript 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

Catalyzes the hydrolysis of ATP coupled with the exchange of H+ and K+ ions across the plasma membrane. Responsible for acid production in the stomach.

<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

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 sitei3834-aspartylphosphate intermediateBy similarity1
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 bindingi724MagnesiumBy similarity1
Metal bindingi728MagnesiumBy 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

<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 functionTranslocase
Biological processHydrogen ion transport, Ion transport, Potassium transport, Transport
LigandATP-binding, Magnesium, Metal-binding, Nucleotide-binding, Potassium

<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:
Potassium-transporting ATPase alpha chain 1 (EC:7.2.2.19)
Alternative name(s):
Gastric H(+)/K(+) ATPase subunit alpha
Proton pump
<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:atp4a
<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>OrganismiXenopus laevis (African clawed frog)
<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 identifieri8355 [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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiAmphibiaBatrachiaAnuraPipoideaPipidaeXenopodinaeXenopusXenopus

Organism-specific databases

Xenopus laevis and tropicalis biology and genomics resource

More...
Xenbasei
XB-GENE-486108 atp4a

<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

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the subcellular compartment where each non-membrane region of a membrane-spanning protein is found.<p><a href='/help/topo_dom' target='_top'>More...</a></p>Topological domaini2 – 94CytoplasmicSequence analysisAdd BLAST93
<p>This subsection of the <a href="http://www.uniprot.org/help/subcellular_location_section">'Subcellular location'</a> section describes the extent of a membrane-spanning region of the protein. It denotes the presence of both alpha-helical transmembrane regions and the membrane spanning regions of beta-barrel transmembrane proteins.<p><a href='/help/transmem' target='_top'>More...</a></p>Transmembranei95 – 115HelicalSequence analysisAdd BLAST21
Topological domaini116 – 138LumenalSequence analysisAdd BLAST23
Transmembranei139 – 159HelicalSequence analysisAdd BLAST21
Topological domaini160 – 295CytoplasmicSequence analysisAdd BLAST136
Transmembranei296 – 315HelicalSequence analysisAdd BLAST20
Topological domaini316 – 327LumenalSequence analysisAdd BLAST12
Transmembranei328 – 345HelicalSequence analysisAdd BLAST18
Topological domaini346 – 779CytoplasmicSequence analysisAdd BLAST434
Transmembranei780 – 799HelicalSequence analysisAdd BLAST20
Topological domaini800 – 809LumenalSequence analysis10
Transmembranei810 – 830HelicalSequence analysisAdd BLAST21
Topological domaini831 – 850CytoplasmicSequence analysisAdd BLAST20
Transmembranei851 – 873HelicalSequence analysisAdd BLAST23
Topological domaini874 – 925LumenalSequence analysisAdd BLAST52
Transmembranei926 – 945HelicalSequence analysisAdd BLAST20
Topological domaini946 – 959CytoplasmicSequence analysisAdd BLAST14
Transmembranei960 – 978HelicalSequence analysisAdd BLAST19
Topological domaini979 – 993LumenalSequence analysisAdd BLAST15
Transmembranei994 – 1014HelicalSequence analysisAdd BLAST21
Topological domaini1015 – 1031CytoplasmicSequence analysisAdd BLAST17

Keywords - Cellular componenti

Membrane

<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 <a href="http://www.uniprot.org/help/ptm_processing_section">PTM / Processing</a> section indicates that the initiator methionine is cleaved from the mature protein.<p><a href='/help/init_met' target='_top'>More...</a></p>Initiator methionineiRemovedBy similarity
<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_00000462582 – 1031Potassium-transporting ATPase alpha chain 1Add BLAST1030

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘PTM / Processing’ section specifies the position and type of each modified residue excluding <a href="http://www.uniprot.org/manual/lipid">lipids</a>, <a href="http://www.uniprot.org/manual/carbohyd">glycans</a> and <a href="http://www.uniprot.org/manual/crosslnk">protein cross-links</a>.<p><a href='/help/mod_res' target='_top'>More...</a></p>Modified residuei950Phosphoserine; by PKABy similarity1

Keywords - PTMi

Phosphoprotein

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q92126

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms. By default, the information is derived from experiments at the mRNA level, unless specified ‘at protein level’. <br></br>Examples: <a href="http://www.uniprot.org/uniprot/P92958#expression">P92958</a>, <a href="http://www.uniprot.org/uniprot/Q8TDN4#expression">Q8TDN4</a>, <a href="http://www.uniprot.org/uniprot/O14734#expression">O14734</a><p><a href='/help/tissue_specificity' target='_top'>More...</a></p>Tissue specificityi

Exclusively expressed in stomach mucosa.

<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

Composed of two subunits: alpha (catalytic) and beta.

<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

3D structure databases

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

More...
SMRi
Q92126

Database of comparative protein structure models

More...
ModBasei
Search...

<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

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

KEGG Orthology (KO)

More...
KOi
K01542

Family and domain databases

Conserved Domains Database

More...
CDDi
cd02608 P-type_ATPase_Na-K_like, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.40.1110.10, 1 hit
3.40.50.1000, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR006068 ATPase_P-typ_cation-transptr_C
IPR004014 ATPase_P-typ_cation-transptr_N
IPR023299 ATPase_P-typ_cyto_dom_N
IPR018303 ATPase_P-typ_P_site
IPR023298 ATPase_P-typ_TM_dom_sf
IPR008250 ATPase_P-typ_transduc_dom_A_sf
IPR036412 HAD-like_sf
IPR023214 HAD_sf
IPR005775 P-type_ATPase_IIC
IPR001757 P_typ_ATPase

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00689 Cation_ATPase_C, 1 hit
PF00690 Cation_ATPase_N, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00831 Cation_ATPase_N, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF56784 SSF56784, 1 hit
SSF81653 SSF81653, 1 hit
SSF81660 SSF81660, 1 hit
SSF81665 SSF81665, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR01106 ATPase-IIC_X-K, 1 hit
TIGR01494 ATPase_P-type, 2 hits

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00154 ATPASE_E1_E2, 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>. 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 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.

<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 in its mature form or if it represents the precursor.<p><a href='/help/sequence_processing' target='_top'>More...</a></p>Sequence processingi: The displayed sequence is further processed into a mature form.

Q92126-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MGKKEQYDMY SVEMEREGDG AMDVKVMKKN KASKKKEKLE SMKKEMDIND
60 70 80 90 100
HEITVEELEQ KYTTSVSKGL KSAFAAEVIL RDGPNELKPP KGTPEYIKFA
110 120 130 140 150
RQLAGGLQCL MWVAAVICLI AFGIEESQGD LTSADNLYLA ITLIAVVVVT
160 170 180 190 200
GCFGYYQEFK STNIIASFKN LVPQQATVVR DGDKFQINAN QLVVGDLVEI
210 220 230 240 250
KGGDRVPADI RIITSQGCKV DNSSLTGESE PQTRSPEYTH ESPLETRNIA
260 270 280 290 300
FFSTMCLEGT ATGIIINTGD RTIIGRIATL ASGVGNEKTP IAIEIEHFVD
310 320 330 340 350
IIAGLAIFFG ATFFVVAMVI GYTFLRAMVF FMAIVVAYVP EGLLATVTVC
360 370 380 390 400
LSLTAKRLAR KNCVVKNLEA VETLGSTSVI CSDKTGTLTQ NRMTVSHLWF
410 420 430 440 450
DNHIHSADTT EDQSGQSFDQ TSDTWRALSK VVSLCNRAFF KSGQDGIPVP
460 470 480 490 500
KRIVIGDASE TALVKFSEIT VGNVMEYRER FKKVTEVPFN STNKFQLSIH
510 520 530 540 550
ELQDPLDLRY LMVMKGAPER ILERCSTIMI KGQELPLDEQ WKEAFQTAYM
560 570 580 590 600
DLGGLGERVL GFCHLYLNEK EYSRGFNFDT EEMNFPTSGL CFAGLISMID
610 620 630 640 650
PPRATVPDAV MKCRTAGIRV IMVTGDHPIT AKAIAASVGI ISEGSETVED
660 670 680 690 700
IAARLRIPVE QVNKRDARAC VINGGQLKEM SSEELVEALK LHPEMVFART
710 720 730 740 750
SPQQKLIIVE SCQKLGAIVA VTGDGVNDSP ALKKADIGVA MGIAGSDAAK
760 770 780 790 800
NAADMILLDD NFASIVTGVE QGRLIFDNLK KSIAYTLTKN IPELAPYLIY
810 820 830 840 850
ITASVPLPLG CITILFIELC TDIFPSVSLA YERAESDIMH LKPRNPRRDR
860 870 880 890 900
LVNEALAVYS YFQIGIIQSF AGFVDYFTVM AQEGWFPAYV LGLRSHWENQ
910 920 930 940 950
HLQDLQDSYG QEWTFSQRLY QQYTCYTVFF ISYEICQISD VLIRKTRRLS
960 970 980 990 1000
VFQQGFFRNK VLVIAIVFQL CLGNFLCYCP GMPNVFNFMP IRFQWWLVPL
1010 1020 1030
PFGILIFVYD EIRKLGVRRH PGSWFDKEMY Y
Length:1,031
Mass (Da):115,037
Last modified:January 23, 2007 - v3
<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:i9366AC1C6ED4D5FC
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
U17249 mRNA Translation: AAA76601.1

Protein sequence database of the Protein Information Resource

More...
PIRi
I51674

NCBI Reference Sequences

More...
RefSeqi
NP_001084343.1, NM_001090874.1

Genome annotation databases

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
399450

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
xla:399450

<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

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U17249 mRNA Translation: AAA76601.1
PIRiI51674
RefSeqiNP_001084343.1, NM_001090874.1

3D structure databases

SMRiQ92126
ModBaseiSearch...

Proteomic databases

PRIDEiQ92126

Genome annotation databases

GeneIDi399450
KEGGixla:399450

Organism-specific databases

Comparative Toxicogenomics Database

More...
CTDi
399450
XenbaseiXB-GENE-486108 atp4a

Phylogenomic databases

KOiK01542

Family and domain databases

CDDicd02608 P-type_ATPase_Na-K_like, 1 hit
Gene3Di3.40.1110.10, 1 hit
3.40.50.1000, 1 hit
InterProiView protein in InterPro
IPR006068 ATPase_P-typ_cation-transptr_C
IPR004014 ATPase_P-typ_cation-transptr_N
IPR023299 ATPase_P-typ_cyto_dom_N
IPR018303 ATPase_P-typ_P_site
IPR023298 ATPase_P-typ_TM_dom_sf
IPR008250 ATPase_P-typ_transduc_dom_A_sf
IPR036412 HAD-like_sf
IPR023214 HAD_sf
IPR005775 P-type_ATPase_IIC
IPR001757 P_typ_ATPase
PfamiView protein in Pfam
PF00689 Cation_ATPase_C, 1 hit
PF00690 Cation_ATPase_N, 1 hit
SMARTiView protein in SMART
SM00831 Cation_ATPase_N, 1 hit
SUPFAMiSSF56784 SSF56784, 1 hit
SSF81653 SSF81653, 1 hit
SSF81660 SSF81660, 1 hit
SSF81665 SSF81665, 1 hit
TIGRFAMsiTIGR01106 ATPase-IIC_X-K, 1 hit
TIGR01494 ATPase_P-type, 2 hits
PROSITEiView protein in PROSITE
PS00154 ATPASE_E1_E2, 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 nameiATP4A_XENLA
<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: Q92126
<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: January 23, 2002
Last sequence update: January 23, 2007
Last modified: December 11, 2019
This is version 130 of the entry and version 3 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 programChordata 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

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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