Q96Q91 (B3A4_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 101.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Anion exchange protein 4 Short name=AE 4 Short name=Anion exchanger 4 Alternative name(s): Sodium bicarbonate cotransporter 5 Solute carrier family 4 member 9 | ||||
| Gene names |
| ||||
| Organism | Homo sapiens (Human) [Reference proteome] | ||||
| Taxonomic identifier | 9606 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo![]() |
Protein attributes
| Sequence length | 983 AA. |
| Sequence status | Complete. |
| Protein existence | Evidence at transcript level |
General annotation (Comments)
| Function | Probable apical anion exchanger of the kidney cortex By similarity. |
| Subcellular location | |
| Tissue specificity | |
| Sequence similarities | Belongs to the anion exchanger (TC 2.A.31) family. [View classification] |
| Sequence caution | The sequence AAK28832.1 differs from that shown. Reason: Erroneous initiation. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Anion exchange Antiport Ion transport Transport |
| Cellular component | Membrane |
| Coding sequence diversity | Alternative splicing |
| Domain | Transmembrane Transmembrane helix |
| PTM | Glycoprotein |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | bicarbonate transport Traceable author statement. Source: Reactome transmembrane transportTraceable author statement. Source: Reactome |
| Cellular_component | apical part of cell Inferred from electronic annotation. Source: Compara integral to membraneInferred from electronic annotation. Source: UniProtKB-KW plasma membraneTraceable author statement. Source: Reactome |
| Molecular_function | inorganic anion exchanger activity Inferred from electronic annotation. Source: InterPro |
| Complete GO annotation... | |
Alternative products
| This entry describes 4 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: Q96Q91-1) This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: Q96Q91-2) The sequence of this isoform differs from the canonical sequence as follows: 77-100: Missing. 384-394: Missing. 592-594: Missing. | ||||||
| Isoform 3 (identifier: Q96Q91-3) The sequence of this isoform differs from the canonical sequence as follows: 77-100: Missing. | ||||||
| Isoform 4 (identifier: Q96Q91-4) The sequence of this isoform differs from the canonical sequence as follows: 77-100: Missing. 595-657: Missing. | ||||||
| Note: No experimental confirmation available. |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 983 | 983 | Anion exchange protein 4 | PRO_0000079223 | |||||
Regions | |||||||||
| Topological domain | 1 – 414 | 414 | Cytoplasmic Potential | ||||||
| Transmembrane | 415 – 435 | 21 | Helical; Potential | ||||||
| Transmembrane | 443 – 463 | 21 | Helical; Potential | ||||||
| Transmembrane | 465 – 485 | 21 | Helical; Potential | ||||||
| Transmembrane | 500 – 520 | 21 | Helical; Potential | ||||||
| Transmembrane | 530 – 550 | 21 | Helical; Potential | ||||||
| Topological domain | 551 – 623 | 73 | Extracellular Potential | ||||||
| Transmembrane | 624 – 644 | 21 | Helical; Potential | ||||||
| Transmembrane | 665 – 685 | 21 | Helical; Potential | ||||||
| Topological domain | 686 – 711 | 26 | Cytoplasmic Potential | ||||||
| Transmembrane | 712 – 732 | 21 | Helical; Potential | ||||||
| Transmembrane | 758 – 778 | 21 | Helical; Potential | ||||||
| Transmembrane | 815 – 835 | 21 | Helical; Potential | ||||||
| Transmembrane | 837 – 857 | 21 | Helical; Potential | ||||||
| Transmembrane | 899 – 919 | 21 | Helical; Potential | ||||||
| Region | 415 – 983 | 569 | Membrane (anion exchange) | ||||||
Amino acid modifications | |||||||||
| Glycosylation | 576 | 1 | N-linked (GlcNAc...) Potential | ||||||
| Glycosylation | 600 | 1 | N-linked (GlcNAc...) Potential | ||||||
Natural variations | |||||||||
| Alternative sequence | 77 – 100 | 24 | Missing in isoform 2, isoform 3 and isoform 4. | VSP_007085 | |||||
| Alternative sequence | 384 – 394 | 11 | Missing in isoform 2. | VSP_007086 | |||||
| Alternative sequence | 592 – 594 | 3 | Missing in isoform 2. | VSP_007087 | |||||
| Alternative sequence | 595 – 657 | 63 | Missing in isoform 4. | VSP_044785 | |||||
Experimental info | |||||||||
| Sequence conflict | 23 | 1 | G → W in AAI36263. Ref.5 | ||||||
| Sequence conflict | 23 | 1 | G → W in AAI43603. Ref.5 | ||||||
| Sequence conflict | 101 | 1 | R → T in AAK69625. Ref.4 | ||||||
| Sequence conflict | 453 | 1 | V → M in AAK16733. Ref.1 | ||||||
| Sequence conflict | 795 | 1 | R → K in AAK16733. Ref.1 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Human BTR1, a new bicarbonate transporter superfamily member and human AE4 from kidney." Parker M.D., Ourmozdi E.P., Tanner M.J.A. Biochem. Biophys. Res. Commun. 282:1103-1109(2001) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2). Tissue: Kidney and Testis. |
| [2] | "A novel sodium bicarbonate cotransporter-like gene in an ancient duplicated region: SLC4A9 at 5q31." Lipovich L., Lynch E.D., Lee M.K., King M.-C. Genome Biol. 2:RESEARCH0011.1-RESEARCH0011.13(2001) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), TISSUE SPECIFICITY. Tissue: Kidney. |
| [3] | "The DNA sequence and comparative analysis of human chromosome 5." Schmutz J., Martin J., Terry A., Couronne O., Grimwood J., Lowry S., Gordon L.A., Scott D., Xie G., Huang W., Hellsten U., Tran-Gyamfi M., She X., Prabhakar S., Aerts A., Altherr M., Bajorek E., Black S. Rubin E.M.Nature 431:268-274(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [4] | "Cloning and characterization of human AE4." Karet F.E. Submitted (DEC-2000) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 3). |
| [5] | "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 4). Tissue: Lung, Placenta and Testis. |
| [6] | Mural R.J., Istrail S., Sutton G.G., Florea L., Halpern A.L., Mobarry C.M., Lippert R., Walenz B., Shatkay H., Dew I., Miller J.R., Flanigan M.J., Edwards N.J., Bolanos R., Fasulo D., Halldorsson B.V., Hannenhalli S., Turner R. Venter J.C.Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [7] | "Molecular cloning of human sodium bicarbonate cotransporter 5." Ishibashi K. Submitted (SEP-1999) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 3-983 (ISOFORM 3), TISSUE SPECIFICITY. Tissue: Testis. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AF336237 mRNA. Translation: AAK16733.1. AF313465 mRNA. Translation: AAK28832.1. Different initiation. AF332961 mRNA. Translation: AAK69625.1. AC008438 Genomic DNA. No translation available. CH471062 Genomic DNA. Translation: EAW62062.1. CH471062 Genomic DNA. Translation: EAW62063.1. CH471062 Genomic DNA. Translation: EAW62064.1. CH471062 Genomic DNA. Translation: EAW62066.1. CH471062 Genomic DNA. Translation: EAW62067.1. CH471062 Genomic DNA. Translation: EAW62068.1. BC136262 mRNA. Translation: AAI36263.1. BC143602 mRNA. Translation: AAI43603.1. AB032762 mRNA. Translation: BAA93010.1. |
| IPI | IPI00000234. IPI00216571. IPI00292101. IPI00922025. |
| RefSeq | NP_001245355.1. NM_001258426.1. NP_001245356.1. NM_001258427.1. NP_001245357.1. NM_001258428.1. NP_113655.2. NM_031467.2. |
| UniGene | Hs.550313. |
3D structure databases | |
| ProteinModelPortal | Q96Q91. |
| ModBase | Search... |
Protein-protein interaction databases | |
| STRING | 9606.ENSP00000387708. |
PTM databases | |
| PhosphoSite | Q96Q91. |
Polymorphism databases | |
| DMDM | 29427950. |
Proteomic databases | |
| PaxDb | Q96Q91. |
| PRIDE | Q96Q91. |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000230993; ENSP00000230993; ENSG00000113073. ENST00000432095; ENSP00000410056; ENSG00000113073. ENST00000506545; ENSP00000422855; ENSG00000113073. ENST00000506757; ENSP00000424424; ENSG00000113073. ENST00000507527; ENSP00000427661; ENSG00000113073. |
| GeneID | 83697. |
| KEGG | hsa:83697. |
| UCSC | uc003lfj.2. human. uc003lfk.2. human. uc003lfm.2. human. |
Organism-specific databases | |
| CTD | 83697. |
| GeneCards | GC05P139719. |
| H-InvDB | HIX0031939. |
| HGNC | HGNC:11035. SLC4A9. |
| HPA | HPA051307. |
| MIM | 610207. gene. |
| neXtProt | NX_Q96Q91. |
| PharmGKB | PA35901. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | NOG301727. |
| HOVERGEN | HBG004326. |
| InParanoid | Q96Q91. |
| KO | K13860. |
| OMA | QELLWLD. |
| PhylomeDB | Q96Q91. |
Enzyme and pathway databases | |
| Reactome | REACT_15518. Transmembrane transport of small molecules. |
Gene expression databases | |
| ArrayExpress | Q96Q91. |
| Bgee | Q96Q91. |
| CleanEx | HS_SLC4A9. |
| Genevestigator | Q96Q91. |
| GermOnline | ENSG00000113073. Homo sapiens. |
Family and domain databases | |
| Gene3D | 3.40.1100.10. 1 hit. |
| InterPro | IPR013769. Band3_cytoplasmic_dom. IPR011531. HCO3_transpt_C. IPR003020. HCO3_transpt_euk. IPR003024. Na/HCO3_transpt. IPR016152. PTrfase/Anion_transptr. [Graphical view] |
| PANTHER | PTHR11453. PTHR11453. 1 hit. |
| Pfam | PF07565. Band_3_cyto. 2 hits. PF00955. HCO3_cotransp. 1 hit. [Graphical view] |
| PRINTS | PR01231. HCO3TRNSPORT. PR01232. NAHCO3TRSPRT. |
| SUPFAM | SSF55804. PTrfase/Anion_transptr. 1 hit. |
| TIGRFAMs | TIGR00834. ae. 1 hit. |
| ProtoNet | Search... |
Other | |
| GenomeRNAi | 83697. |
| NextBio | 72674. |
| SOURCE | Search... |
Entry information
| Entry name | B3A4_HUMAN | ||||||||
| Accession | Primary (citable) accession number: Q96Q91 Secondary accession number(s): B7ZL63 Q9BXN3 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
| Disclaimer | Any 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. | ||||||||
Relevant documents
| Human chromosome 5 Human chromosome 5: entries, gene names and cross-references to MIM |
| MIM cross-references Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot |
| SIMILARITY comments Index of protein domains and families |

Clusters with
