UniProt Protein Function: | Mitochondrial intermembrane chaperone that participates in the import and insertion of some multi-pass transmembrane proteins into the mitochondrial inner membrane. Also required for the transfer of beta-barrel precursors from the TOM complex to the sorting and assembly machinery (SAM complex) of the outer membrane. Acts as a chaperone-like protein that protects the hydrophobic precursors from aggregation and guide them through the mitochondrial intermembrane space. The TIMM8-TIMM13 complex mediates the import of proteins such as TIMM23, SLC25A12/ARALAR1 and SLC25A13/ARALAR2, while the predominant TIMM9-TIMM10 70 kDa complex mediates the import of much more proteins. Probably necessary for normal neurologic development. |
NCBI Summary: | This translocase is involved in the import and insertion of hydrophobic membrane proteins from the cytoplasm into the mitochondrial inner membrane. The gene is mutated in Mohr-Tranebjaerg syndrome/Deafness Dystonia Syndrome (MTS/DDS) and it is postulated that MTS/DDS is a mitochondrial disease caused by a defective mitochondrial protein import system. Defects in this gene also cause Jensen syndrome; an X-linked disease with opticoacoustic nerve atrophy and muscle weakness. This protein, along with TIMM13, forms a 70 kDa heterohexamer. Alternative splicing results in multiple transcript variants encoding distinct isoforms.[provided by RefSeq, Mar 2009] |
UniProt Code: | O60220 |
NCBI GenInfo Identifier: | 4758152 |
NCBI Gene ID: | 1678 |
NCBI Accession: | NP_004076.1 |
UniProt Secondary Accession: | O60220,Q6IRW6, B2R5A6, |
UniProt Related Accession: | O60220 |
Molecular Weight: | 10,998 Da |
NCBI Full Name: | mitochondrial import inner membrane translocase subunit Tim8 A isoform 1 |
NCBI Synonym Full Names: | translocase of inner mitochondrial membrane 8A |
NCBI Official Symbol: | TIMM8A |
NCBI Official Synonym Symbols: | DDP; MTS; DDP1; DFN1; TIM8 |
NCBI Protein Information: | mitochondrial import inner membrane translocase subunit Tim8 A |
UniProt Protein Name: | Mitochondrial import inner membrane translocase subunit Tim8 A |
UniProt Synonym Protein Names: | Deafness dystonia protein 1; X-linked deafness dystonia protein |
UniProt Gene Name: | TIMM8A |