O75027 (ABCB7_HUMAN) Reviewed, UniProtKB/Swiss-Prot
Last modified
May 1, 2013.
Version 128.
History...
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize order
Names·Attributes·General annotation·Ontologies·Alt products·Sequence annotation·Sequences·References·Web links·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: ATP-binding cassette sub-family B member 7, mitochondrial Alternative name(s): ATP-binding cassette transporter 7 Short name=ABC transporter 7 protein | ||||
| Gene names |
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| 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 | 752 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is further processed into a mature form. |
| Protein existence | Evidence at protein level |
General annotation (Comments)
| Function | Could be involved in the transport of heme from the mitochondria to the cytosol. Plays a central role in the maturation of cytosolic iron-sulfur (Fe/S) cluster-containing proteins. |
| Subunit structure | Homodimer or heterodimer Potential. |
| Subcellular location | Mitochondrion inner membrane; Multi-pass membrane protein Potential. |
| Involvement in disease | Anemia, sideroblastic, spinocerebellar ataxia (ASAT) [MIM:301310]: A X-linked recessive disorder characterized by an infantile to early childhood onset of non-progressive cerebellar ataxia and mild anemia, with hypochromia and microcytosis. |
| Sequence similarities | Belongs to the ABC transporter superfamily. ABCB family. Heavy Metal importer (TC 3.A.1.210) subfamily. [View classification] Contains 1 ABC transmembrane type-1 domain. Contains 1 ABC transporter domain. |
Ontologies
| Keywords | |
|---|---|
| Biological process | Transport |
| Cellular component | Membrane Mitochondrion Mitochondrion inner membrane |
| Coding sequence diversity | Alternative splicing Polymorphism |
| Disease | Disease mutation |
| Domain | Transit peptide Transmembrane Transmembrane helix |
| Ligand | ATP-binding Nucleotide-binding |
| PTM | Acetylation |
| Technical term | Complete proteome Reference proteome |
| Gene Ontology (GO) | |
| Biological_process | cellular iron ion homeostasis Inferred from Biological aspect of Ancestor. Source: RefGenome |
| Cellular_component | integral to membrane Inferred from Biological aspect of Ancestor. Source: RefGenome mitochondrial inner membraneInferred from direct assay PubMed 17006453. Source: UniProtKB |
| Molecular_function | ATP binding Traceable author statement Ref.1. Source: ProtInc ATPase activity, coupled to transmembrane movement of substancesInferred from Biological aspect of Ancestor. Source: RefGenome heme transporter activityTraceable author statement Ref.1. Source: ProtInc |
| Complete GO annotation... | |
Alternative products
| This entry describes 2 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: O75027-1) 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: O75027-2) The sequence of this isoform differs from the canonical sequence as follows: 56-56: Q → QQ |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Transit peptide | 1 – ? | Mitochondrion Potential | |||||||
| Chain | ? – 752 | ATP-binding cassette sub-family B member 7, mitochondrial | PRO_0000000249 | ||||||
Regions | |||||||||
| Transmembrane | 141 – 161 | 21 | Helical; Potential | ||||||
| Transmembrane | 186 – 206 | 21 | Helical; Potential | ||||||
| Transmembrane | 260 – 280 | 21 | Helical; Potential | ||||||
| Transmembrane | 291 – 311 | 21 | Helical; Potential | ||||||
| Transmembrane | 383 – 403 | 21 | Helical; Potential | ||||||
| Transmembrane | 410 – 430 | 21 | Helical; Potential | ||||||
| Domain | 140 – 436 | 297 | ABC transmembrane type-1 | ||||||
| Domain | 472 – 706 | 235 | ABC transporter | ||||||
| Nucleotide binding | 505 – 512 | 8 | ATP Potential | ||||||
Amino acid modifications | |||||||||
| Modified residue | 216 | 1 | N6-acetyllysine Ref.9 | ||||||
| Modified residue | 251 | 1 | N6-acetyllysine Ref.9 | ||||||
Natural variations | |||||||||
| Alternative sequence | 56 | 1 | Q → QQ in isoform 2. | VSP_014635 | |||||
| Natural variant | 208 | 1 | E → D in ASAT. Ref.12 | VAR_067354 | |||||
| Natural variant | 315 | 1 | R → G. Ref.1 Ref.11 | VAR_022872 | |||||
| Natural variant | 346 | 1 | F → I. Ref.1 Ref.11 | VAR_022873 | |||||
| Natural variant | 400 | 1 | I → M in ASAT. Ref.2 | VAR_009156 | |||||
| Natural variant | 411 | 1 | V → L in ASAT. Ref.11 | VAR_022874 | |||||
| Natural variant | 433 | 1 | E → K in ASAT; impaired maturation of cytosolic Fe/S proteins. Ref.3 | VAR_012640 | |||||
| Natural variant | 580 | 1 | A → V. Corresponds to variant rs1340989 [ dbSNP | Ensembl ]. | VAR_055471 | |||||
| Natural variant | 581 | 1 | V → A. Corresponds to variant rs1340989 [ dbSNP | Ensembl ]. | VAR_037972 | |||||
Experimental info | |||||||||
| Sequence conflict | 141 | 1 | A → P in AAC39865. Ref.4 | ||||||
| Sequence conflict | 258 | 1 | R → K in BAA28861. Ref.1 | ||||||
| Sequence conflict | 271 – 276 | 6 | LLPIMF → PLPNHV in AAC39865. Ref.4 | ||||||
| Sequence conflict | 280 | 1 | L → LL in AAC39865. Ref.4 | ||||||
| Sequence conflict | 290 | 1 | G → C in AAC39865. Ref.4 | ||||||
| Sequence conflict | 293 – 297 | 5 | FALVT → LLGN in AAC39865. Ref.4 | ||||||
| Sequence conflict | 320 – 324 | 5 | IEMNK → LEIDQ in AAC39865. Ref.4 | ||||||
| Sequence conflict | 542 | 1 | E → V in AAD47141. Ref.8 | ||||||
Sequences
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References
| « Hide 'large scale' references | |
| [1] | "Cloning and chromosomal mapping of a novel ABC transporter gene (hABC7), a candidate for X-linked sideroblastic anemia with spinocerebellar ataxia." Shimada Y., Okuno S., Kawai A., Shinomiya H., Saito A., Suzuki M., Omori Y., Nishino N., Kanemoto N., Fujiwara T., Horie M., Takahashi E. J. Hum. Genet. 43:115-122(1998) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), VARIANTS GLY-315 AND ILE-346. Tissue: Placenta. |
| [2] | "Mutation of a putative mitochondrial iron transporter gene (ABC7) in X-linked sideroblastic anemia and ataxia (XLSA/A)." Allikmets R., Raskind W.H., Hutchinson A., Schueck N.D., Dean M., Koeller D.M. Hum. Mol. Genet. 8:743-749(1999) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1), VARIANT ASAT MET-400. |
| [3] | "Human ABC7 transporter: gene structure and mutation causing X-linked sideroblastic anemia with ataxia with disruption of cytosolic iron-sulfur protein maturation." Bekri S., Kispal G., Lange H., Fitzsimons E., Tolmie J., Lill R., Bishop D.F. Blood 96:3256-3264(2000) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], VARIANT ASAT LYS-433. |
| [4] | "Identification of genes expressed in human CD34(+) hematopoietic stem/progenitor cells by expressed sequence tags and efficient full-length cDNA cloning." Mao M., Fu G., Wu J.-S., Zhang Q.-H., Zhou J., Kan L.-X., Huang Q.-H., He K.-L., Gu B.-W., Han Z.-G., Shen Y., Gu J., Yu Y.-P., Xu S.-H., Wang Y.-X., Chen S.-J., Chen Z. Proc. Natl. Acad. Sci. U.S.A. 95:8175-8180(1998) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 1). Tissue: Umbilical cord blood. |
| [5] | "Cloning of human full-length CDSs in BD Creator(TM) system donor vector." Kalnine N., Chen X., Rolfs A., Halleck A., Hines L., Eisenstein S., Koundinya M., Raphael J., Moreira D., Kelley T., LaBaer J., Lin Y., Phelan M., Farmer A. Submitted (AUG-2003) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM 2). |
| [6] | "The DNA sequence of the human X chromosome." Ross M.T., Grafham D.V., Coffey A.J., Scherer S., McLay K., Muzny D., Platzer M., Howell G.R., Burrows C., Bird C.P., Frankish A., Lovell F.L., Howe K.L., Ashurst J.L., Fulton R.S., Sudbrak R., Wen G., Jones M.C. Bentley D.R.Nature 434:325-337(2005) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. |
| [7] | "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 2). Tissue: Muscle. |
| [8] | "Identification of a human mitochondrial ABC transporter, the functional orthologue of yeast Atm1p." Csere P., Lill R., Kispal G. FEBS Lett. 441:266-270(1998) [PubMed] [Europe PMC] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 5-752 (ISOFORM 1). |
| [9] | "Lysine acetylation targets protein complexes and co-regulates major cellular functions." Choudhary C., Kumar C., Gnad F., Nielsen M.L., Rehman M., Walther T.C., Olsen J.V., Mann M. Science 325:834-840(2009) [PubMed] [Europe PMC] [Abstract] Cited for: ACETYLATION [LARGE SCALE ANALYSIS] AT LYS-216 AND LYS-251, MASS SPECTROMETRY. |
| [10] | "Initial characterization of the human central proteome." Burkard T.R., Planyavsky M., Kaupe I., Breitwieser F.P., Buerckstuemmer T., Bennett K.L., Superti-Furga G., Colinge J. BMC Syst. Biol. 5:17-17(2011) [PubMed] [Europe PMC] [Abstract] Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]. |
| [11] | "X-linked cerebellar ataxia and sideroblastic anaemia associated with a missense mutation in the ABC7 gene predicting V411L." Maguire A., Hellier K., Hammans S., May A. Br. J. Haematol. 115:910-917(2001) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANT ASAT LEU-411, VARIANTS GLY-315 AND ILE-346. |
| [12] | "X-linked sideroblastic anemia and ataxia: A new family with identification of a fourth ABCB7 gene mutation." D'Hooghe M., Selleslag D., Mortier G., Van Coster R., Vermeersch P., Billiet J., Bekri S. Eur. J. Paediatr. Neurol. 16:730-735(2012) [PubMed] [Europe PMC] [Abstract] Cited for: VARIANT ASAT ASP-208. |
| + | Additional computationally mapped references. |
Web resources
| GeneReviews |
| ABCMdb Database for mutations in ABC proteins |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | AB005289 mRNA. Translation: BAA28861.1. AF133659 mRNA. Translation: AAD33045.1. AF241887 AF241886 Genomic DNA. Translation: AAK20173.1.AF038950 mRNA. Translation: AAC39865.1. BT009918 mRNA. Translation: AAP88920.1. AL360179, AL359545 Genomic DNA. Translation: CAH70564.1. AL360179, AL359545 Genomic DNA. Translation: CAH70565.1. AL359545, AL360179 Genomic DNA. Translation: CAI41573.1. AL359545, AL360179 Genomic DNA. Translation: CAI41574.1. BC006323 mRNA. Translation: AAH06323.1. AF078777 mRNA. Translation: AAD47141.1. |
| IPI | IPI00306748. IPI00556553. |
| RefSeq | NP_001258625.1. NM_001271696.1. NP_001258627.1. NM_001271698.1. NP_004290.2. NM_004299.4. |
| UniGene | Hs.370480. |
3D structure databases | |
| ProteinModelPortal | O75027. |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | O75027. 1 interaction. |
| STRING | 9606.ENSP00000253577. |
Protein family/group databases | |
| TCDB | 3.A.1.210.4. ATP-binding cassette (ABC) superfamily. |
PTM databases | |
| PhosphoSite | O75027. |
Proteomic databases | |
| PaxDb | O75027. |
| PRIDE | O75027. |
Protocols and materials databases | |
| DNASU | 22. |
| StructuralBiologyKnowledgebase | Search... |
Genome annotation databases | |
| Ensembl | ENST00000253577; ENSP00000253577; ENSG00000131269. ENST00000373394; ENSP00000362492; ENSG00000131269. |
| GeneID | 22. |
| KEGG | hsa:22. |
| UCSC | uc004ebz.3. human. uc004eca.3. human. |
Organism-specific databases | |
| CTD | 22. |
| GeneCards | GC0XM074189. |
| H-InvDB | HIX0028475. |
| HGNC | HGNC:48. ABCB7. |
| HPA | HPA034982. |
| MIM | 300135. gene. 301310. phenotype. |
| neXtProt | NX_O75027. |
| Orphanet | 2802. X-linked sideroblastic anemia - ataxia. |
| PharmGKB | PA24389. |
| GenAtlas | Search... |
Phylogenomic databases | |
| eggNOG | COG5265. |
| HOVERGEN | HBG080194. |
| KO | K05662. |
| OMA | RYEAQRY. |
Enzyme and pathway databases | |
| Reactome | REACT_15518. Transmembrane transport of small molecules. |
Gene expression databases | |
| ArrayExpress | O75027. |
| Bgee | O75027. |
| CleanEx | HS_ABCB7. |
| Genevestigator | O75027. |
| GermOnline | ENSG00000131269. Homo sapiens. |
Family and domain databases | |
| InterPro | IPR003593. AAA+_ATPase. IPR003439. ABC_transporter-like. IPR017871. ABC_transporter_CS. IPR017940. ABC_transporter_type1. IPR001140. ABC_transptr_TM_dom. IPR011527. ABC_transptrTM_dom_typ1. [Graphical view] |
| Pfam | PF00664. ABC_membrane. 1 hit. PF00005. ABC_tran. 1 hit. [Graphical view] |
| SMART | SM00382. AAA. 1 hit. [Graphical view] |
| SUPFAM | SSF90123. ABC_TM_1. 1 hit. |
| PROSITE | PS50929. ABC_TM1F. 1 hit. PS00211. ABC_TRANSPORTER_1. 1 hit. PS50893. ABC_TRANSPORTER_2. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other | |
| GenomeRNAi | 22. |
| NextBio | 65. |
| SOURCE | Search... |
Entry information
| Entry name | ABCB7_HUMAN | ||||||||
| Accession | Primary (citable) accession number: O75027 Secondary accession number(s): O75345 Q9UP01 | ||||||||
| Entry history |
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| 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 X Human chromosome X: entries, gene names and cross-references to MIM |
| Human entries with polymorphisms or disease mutations List of human entries with polymorphisms or disease mutations |
| Human polymorphisms and disease mutations Index of human polymorphisms and disease mutations |
| 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
