TIM8B Antibody – Rabbit Polyclonal

Function: Probable 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

By similarity.

Subunit structure: Heterohexamer; possibly composed of 3 copies of TIMM8B and 3 copies of TIMM13, named soluble 70 kDa complex. Associates with the TIM22 complex, whose core is composed of TIMM22

By similarity.

Subcellular location: Mitochondrion inner membrane; Peripheral membrane protein; Intermembrane side

By similarity.

Tissue specificity: Ubiquitous, with highest expression in heart, kidney, liver and skeletal muscle. Ref.2

Domain: The twin CX3C motif contains 4 conserved Cys residues that form 2 disulfide bonds in the mitochondrial intermembrane space. However, during the transit of TIMM8B from cytoplasm into mitochondrion, the Cys residues probably coordinate zinc, thereby preventing folding and allowing its transfer across mitochondrial outer membrane

By similarity.

Sequence similarities: Belongs to the small Tim family.