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Entry version 112 (12 Aug 2020)
Sequence version 1 (01 May 1997)
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Protein

Anion exchange protein

Gene

SLC4A2

Organism
Homo sapiens (Human)
Status
Unreviewed-Annotation score:

Annotation score:2 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

Plasma membrane anion exchange protein of wide distribution.ARBA annotation

<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

Biological processAnion exchangeARBA annotation, AntiportARBA annotation, Ion transport, Transport

<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%5Fand%5Ftaxonomy%5Fsection">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:
Anion exchange proteinUniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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:SLC4A2Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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>OrganismiHomo sapiens (Human)Imported
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 identifieri9606 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">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 lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo

<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%5Flocation%5Fsection">'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>Transmembranei709 – 730HelicalUniRule annotationAdd BLAST22
Transmembranei751 – 774HelicalUniRule annotationAdd BLAST24
Transmembranei794 – 819HelicalUniRule annotationAdd BLAST26
Transmembranei826 – 844HelicalUniRule annotationAdd BLAST19
Transmembranei901 – 918HelicalUniRule annotationAdd BLAST18
Transmembranei934 – 954HelicalUniRule annotationAdd BLAST21
Transmembranei991 – 1010HelicalUniRule annotationAdd BLAST20
Transmembranei1031 – 1055HelicalUniRule annotationAdd BLAST25
Transmembranei1091 – 1110HelicalUniRule annotationAdd BLAST20
Transmembranei1116 – 1136HelicalUniRule annotationAdd BLAST21

Keywords - Cellular componenti

Membrane

<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

Organism-specific databases

The Pharmacogenetics and Pharmacogenomics Knowledge Base

More...
PharmGKBi
PA35896

<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

Keywords - PTMi

MethylationARBA annotation

Proteomic databases

PeptideAtlas

More...
PeptideAtlasi
Q99654

PRoteomics IDEntifications database

More...
PRIDEi
Q99654

<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 href="http://www.uniprot.org/help/family%5Fand%5Fdomains%5Fsection">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>Domaini352 – 619Band_3_cytoInterPro annotationAdd BLAST268
Domaini675 – 1168HCO3_cotranspInterPro annotationAdd BLAST494

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 – 240DisorderedSequence analysisAdd BLAST240
Regioni283 – 320DisorderedSequence analysisAdd BLAST38
Regioni449 – 470DisorderedSequence analysisAdd BLAST22

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 biasi32 – 55PolyampholyteSequence analysisAdd BLAST24
Compositional biasi62 – 99PolyampholyteSequence analysisAdd BLAST38
Compositional biasi141 – 155PolarSequence analysisAdd BLAST15
Compositional biasi306 – 320PolyampholyteSequence 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 anion exchanger (TC 2.A.31) family. [View classification]UniRule annotationARBA annotation

Keywords - Domaini

Transmembrane, Transmembrane helixUniRule annotationARBA annotation

Family and domain databases

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.40.930.10, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001717, Anion_exchange
IPR002978, Anion_exchange_2
IPR018241, Anion_exchange_CS
IPR013769, Band3_cytoplasmic_dom
IPR011531, HCO3_transpt_C
IPR003020, HCO3_transpt_euk
IPR016152, PTrfase/Anion_transptr

The PANTHER Classification System

More...
PANTHERi
PTHR11453, PTHR11453, 1 hit
PTHR11453:SF14, PTHR11453:SF14, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF07565, Band_3_cyto, 1 hit
PF00955, HCO3_cotransp, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00165, ANIONEXCHNGR
PR01188, ANIONEXHNGR2
PR01231, HCO3TRNSPORT

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF55804, SSF55804, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00834, ae, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00219, ANION_EXCHANGER_1, 1 hit
PS00220, ANION_EXCHANGER_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%5Flength">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%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">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.

Q99654-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSSAPRRPAK GADSFCTPEP ESLGPGTPGF PEQEEDELHR TLGVERFEEI
60 70 80 90 100
LQEAGSRGGE EPGRSYGEED FEYHRQSSHH IHHPLSTHLP PDARRRKTPQ
110 120 130 140 150
GPGRKPRRRP GASPTGETPT IEEGEEDEDE ASEAEGARAL TQPSPVSTPS
160 170 180 190 200
SVQFFLREDD SADRKAERTS PSSPAPLPHQ EATPRASKGA QAGTQVEEAE
210 220 230 240 250
AEAVAVASGT AGGDDGGASG RPLPKAQPGH RSYNLQERRR IGSMTGAEQA
260 270 280 290 300
LLPRVPTDEI EAQTLATADL DLMKSHRFED VPGVRRHLVR KNAKGSTQSG
310 320 330 340 350
REGREPGPTP RARPRAPHKP HEVFVELNEL LLDKNQEPQW RETARWIKFE
360 370 380 390 400
EDVEEETERW GKPHVASLSF RSLLELRRTL AHGAVLLDLD QQTLPGVAHQ
410 420 430 440 450
VVEQMVISDQ IKAEDRANVL RALLLKHSHP SDEKDFSFPR NISAGSLGSL
460 470 480 490 500
LGHHHGQGAE SDPHVTEPLM GGVPETRLEV ERERDVPPPA PPAGITRSKS
510 520 530 540 550
KHELKLLEKI PENAEATVVL VGCVEFLSRP TMAFVRLREA VELDAVLEVP
560 570 580 590 600
VPVRFLFLLL GPSSANMDYH EIGRSISTLM SDKQFHEAAY LADEREDLLT
610 620 630 640 650
AINAFLDCSV VLPPSEVQGE ELLRSVAHFQ RQMLKKREEQ GRLLPTGAGL
660 670 680 690 700
EPKSAQDKAL LQMVEAAGAA EDDPLRRTGR PFGGLIRDVR RRYPHYLSDF
710 720 730 740 750
RDALDPQCLA AVIFIYFAAL SPAITFGGLL GEKTQDLIGV SELIMSTALQ
760 770 780 790 800
GVVFCLLGAQ PLLVIGFSGP LLVFEEAFFS FCSSNHLEYL VGRVWIGFWL
810 820 830 840 850
VFLALLMVAL EGSFLVRFVS RFTQEIFAFL ISLIFIYETF YKLVKIFQEH
860 870 880 890 900
PLHGCSASNS SEVDGGENMT WAGARPTLGP GNRSLAGQSG QGKPRGQPNT
910 920 930 940 950
ALLSLVLMAG TFFIAFFLRK FKNSRFFPGR IRRVIGDFGV PIAILIMVLV
960 970 980 990 1000
DYSIEDTYTQ KLSVPSGFSV TAPEKRGWVI NPLGEKSPFP VWMMVASLLP
1010 1020 1030 1040 1050
AILVFILIFM ETQITTLIIS KKERMLQKGS GFHLDLLLIV AMGGICALFG
1060 1070 1080 1090 1100
LPWLAAATVR SVTHANALTV MSKAVAPGDK PKIQEVKEQR VTGLLVALLV
1110 1120 1130 1140 1150
GLSIVIGDLL RQIPLAVLFG IFLYMGVTSL NGIQFYERLH LLLMPPKHHP
1160 1170 1180 1190 1200
DVTYVKKVRT LRMHLFTALQ LLCLALLWAV MSTAASLAFP FILILTVPLR
1210 1220 1230 1240
MVVLTRIFTD REMKCLDANE AEPVFDEREG VDEYNEMPMP V
Length:1,241
Mass (Da):137,009
Last modified:May 1, 1997 - 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:iD266ECDAB238FD97
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
U62531 mRNA Translation: AAC50964.1

<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 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
U62531 mRNA Translation: AAC50964.1

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...

Proteomic databases

PeptideAtlasiQ99654
PRIDEiQ99654

Organism-specific databases

PharmGKBiPA35896

Miscellaneous databases

ChiTaRS: a database of human, mouse and fruit fly chimeric transcripts and RNA-sequencing data

More...
ChiTaRSi
SLC4A2, human

Family and domain databases

Gene3Di3.40.930.10, 1 hit
InterProiView protein in InterPro
IPR001717, Anion_exchange
IPR002978, Anion_exchange_2
IPR018241, Anion_exchange_CS
IPR013769, Band3_cytoplasmic_dom
IPR011531, HCO3_transpt_C
IPR003020, HCO3_transpt_euk
IPR016152, PTrfase/Anion_transptr
PANTHERiPTHR11453, PTHR11453, 1 hit
PTHR11453:SF14, PTHR11453:SF14, 1 hit
PfamiView protein in Pfam
PF07565, Band_3_cyto, 1 hit
PF00955, HCO3_cotransp, 1 hit
PRINTSiPR00165, ANIONEXCHNGR
PR01188, ANIONEXHNGR2
PR01231, HCO3TRNSPORT
SUPFAMiSSF55804, SSF55804, 1 hit
TIGRFAMsiTIGR00834, ae, 1 hit
PROSITEiView protein in PROSITE
PS00219, ANION_EXCHANGER_1, 1 hit
PS00220, ANION_EXCHANGER_2, 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 nameiQ99654_HUMAN
<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: Q99654
<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%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/TrEMBL: May 1, 1997
Last sequence update: May 1, 1997
Last modified: August 12, 2020
This is version 112 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)
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.
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