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Overview

Uniprot IDQ62760
Protein NameMitochondrial import receptor subunit TOM20 homolog
Gene NameTomm20
OrganismRattus norvegicus

Kla Sites from experimental identification

Position Flanking peptide
56 KERAGLSKLPDLKDA

Function

Central receptor component of the translocase of the outer membrane of mitochondria (TOM) complex essential for the recognition and translocation of cytosolically synthesized mitochondrial preproteins (By similarity). Together with TOMM22 functions as the transit peptide receptor at the surface of the mitochondrion outer membrane and facilitates the movement of preproteins into the TOM40 translocation pore (By similarity). The TOM complex associates with the ion channel VDAC2 and PINK1 kinase at depolarized mitochondria, this interaction stabilizes PINK1 at the outer mitochondrial membrane and triggers downstream mitophagy by the recruitment of the E3 ubiquitin ligase PRKN (By similarity). Required for the translocation across the mitochondrial outer membrane of cytochrome P450 monooxygenases (PubMed:19401463)

Protein Sequence

10 MVGRNSAIAA 20 GVCGALFIGY 30 CIYFDRKRRS 40 DPNFKNRLRE 50 RRKKQKLAKE 60 RAGLSKLPDL 70 KDAEAVQKFF 80 LEEIQLGEEL 90 LAQGDYEKGV 100 DHLTNAIAVC 110 GQPQQLLQVL 120 QQTLPPPVFQ 130 MLLTKLPTIS 140 QRIVSAQSLA EDDVE

Gene Ontology

Classification GO ID Description
Cellular Component GO:0071944 cell periphery
Cellular Component GO:0140494 migrasome
Cellular Component GO:0044233 mitochondria-associated endoplasmic reticulum membrane contact site
Cellular Component GO:0005740 mitochondrial envelope
Cellular Component GO:0005741 mitochondrial outer membrane
Cellular Component GO:0005742 mitochondrial outer membrane translocase complex
Cellular Component GO:0005739 mitochondrion
Cellular Component GO:0097225 sperm midpiece
Molecular Function GO:0030943 mitochondrion targeting sequence binding
Molecular Function GO:0015450 protein-transporting ATPase activity
Molecular Function GO:0051082 unfolded protein binding
Biological Process GO:0006886 intracellular protein transport
Biological Process GO:0030150 protein import into mitochondrial matrix
Biological Process GO:0006626 protein targeting to mitochondrion
Biological Process GO:1905242 response to 3,3',5-triiodo-L-thyronine
Biological Process GO:0014850 response to muscle activity
Biological Process GO:0016031 tRNA import into mitochondrion

Reference

[1] Sheng L, Xu H, Wang Y, Ni J, Xiang T et al.. Systematic analysis of lysine lactylation in nucleus pulposus cells.. iScience 27(11):111157. 2024 Nov 15. PMID: 39524337.