ABCB7

ATP-binding cassette sub-family B member 7, mitochondrial is a protein that in humans is encoded by the ABCB7 gene.^[5][6]

ABCB7
Identifiers
Aliases	ABCB7, AA517758, AU019072, Abc7, ASAT, Atm1p, EST140535, ATP binding cassette subfamily B member 7
External IDs	OMIM: 300135; MGI: 109533; HomoloGene: 3175; GeneCards: ABCB7; OMA:ABCB7 - orthologs
Gene location (Human) Chr. X chromosome (human)[1] Band Xq13.3 Start 75,051,048 bp[1] End 75,156,732 bp[1]
Gene location (Mouse) Chr. X chromosome (mouse)[2] Band X D|X 46.58 cM Start 103,324,263 bp[2] End 103,457,462 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in muscle of arm biceps brachii glutes triceps brachii muscle gastrocnemius muscle Skeletal muscle tissue of biceps brachii monocyte left ventricle muscle of thigh jejunal mucosa Top expressed in digastric muscle triceps brachii muscle temporal muscle sternocleidomastoid muscle vastus lateralis muscle tibialis anterior muscle right ventricle knee joint soleus muscle extraocular muscle More reference expression data BioGPS More reference expression data
Gene ontology Molecular function nucleotide binding heme transmembrane transporter activity ATPase activity ATPase-coupled transmembrane transporter activity ATP binding Cellular component membrane mitochondrial inner membrane mitochondrion integral component of membrane Biological process transmembrane transport cellular iron ion homeostasis heme transport Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 22 11306 Ensembl ENSG00000131269 ENSMUSG00000031333 UniProt O75027 Q61102 RefSeq (mRNA) NM_004299 NM_001271696 NM_001271697 NM_001271698 NM_001271699 NM_009592 RefSeq (protein) NP_001258625 NP_001258626 NP_001258627 NP_001258628 NP_004290 NP_001258627.1 NP_033722 Location (UCSC) Chr X: 75.05 – 75.16 Mb Chr X: 103.32 – 103.46 Mb PubMed search [3] [4]
Wikidata
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Function

The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance as well as antigen presentation. This gene encodes a half-transporter involved in the transport of heme from the mitochondria to the cytosol. With iron/sulfur cluster precursors as its substrates, this protein may play a role in metal homeostasis.

Clinical significance

Mutations in this gene have been implicated in X-linked sideroblastic anemia with ataxia.^[6]

Interactions

ABCB7 has been shown to interact with Ferrochelatase.^[7]

See also

• ATP-binding cassette transporter