ID   TOM20_PONAB             Reviewed;         145 AA.
AC   Q5RA31;
DT   07-FEB-2006, integrated into UniProtKB/Swiss-Prot.
DT   21-DEC-2004, sequence version 1.
DT   03-AUG-2022, entry version 94.
DE   RecName: Full=Mitochondrial import receptor subunit TOM20 homolog;
DE   AltName: Full=Mitochondrial 20 kDa outer membrane protein;
DE   AltName: Full=Outer mitochondrial membrane receptor Tom20;
GN   Name=TOMM20;
OS   Pongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC   Pongo.
OX   NCBI_TaxID=9601;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC   TISSUE=Brain cortex;
RG   The German cDNA consortium;
RL   Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Central component of the receptor complex responsible for the
CC       recognition and translocation of cytosolically synthesized
CC       mitochondrial preproteins. Together with TOM22 functions as the transit
CC       peptide receptor at the surface of the mitochondrion outer membrane and
CC       facilitates the movement of preproteins into the TOM40 translocation
CC       pore (By similarity). Required for the translocation across the
CC       mitochondrial outer membrane of cytochrome P450 monooxygenases.
CC       {ECO:0000250, ECO:0000250|UniProtKB:Q62760}.
CC   -!- SUBUNIT: Forms part of the preprotein translocase complex of the outer
CC       mitochondrial membrane (TOM complex) which consists of at least 7
CC       different proteins (TOMM5, TOMM6, TOMM7, TOMM20, TOMM22, TOMM40 and
CC       TOMM70). Interacts with TOM22. Interacts with APEX1 (By similarity).
CC       Interacts with TBC1D21 (By similarity). {ECO:0000250|UniProtKB:Q15388,
CC       ECO:0000250|UniProtKB:Q9DCC8}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion outer membrane
CC       {ECO:0000250|UniProtKB:Q15388}; Single-pass membrane protein
CC       {ECO:0000255}.
CC   -!- PTM: Ubiquitinated by PRKN during mitophagy, leading to its degradation
CC       and enhancement of mitophagy. Deubiquitinated by USP30.
CC       {ECO:0000250|UniProtKB:Q15388}.
CC   -!- SIMILARITY: Belongs to the Tom20 family. {ECO:0000305}.
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DR   EMBL; CR859192; CAH91379.1; -; mRNA.
DR   RefSeq; NP_001127411.1; NM_001133939.1.
DR   AlphaFoldDB; Q5RA31; -.
DR   BMRB; Q5RA31; -.
DR   SMR; Q5RA31; -.
DR   STRING; 9601.ENSPPYP00000000099; -.
DR   Ensembl; ENSPPYT00000062118; ENSPPYP00000044608; ENSPPYG00000034000.
DR   GeneID; 100174481; -.
DR   KEGG; pon:100174481; -.
DR   CTD; 9804; -.
DR   eggNOG; KOG4056; Eukaryota.
DR   GeneTree; ENSGT00390000011698; -.
DR   HOGENOM; CLU_100000_0_0_1; -.
DR   InParanoid; Q5RA31; -.
DR   OrthoDB; 1316067at2759; -.
DR   TreeFam; TF106200; -.
DR   Proteomes; UP000001595; Chromosome 1.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005742; C:mitochondrial outer membrane translocase complex; IEA:InterPro.
DR   GO; GO:0097225; C:sperm midpiece; ISS:UniProtKB.
DR   GO; GO:0006626; P:protein targeting to mitochondrion; ISS:UniProtKB.
DR   Gene3D; 1.20.960.10; -; 1.
DR   InterPro; IPR002056; MAS20.
DR   InterPro; IPR022422; MAS20_rcpt_metazoan.
DR   InterPro; IPR023392; Tom20_dom_sf.
DR   PANTHER; PTHR12430; PTHR12430; 1.
DR   Pfam; PF02064; MAS20; 1.
DR   PIRSF; PIRSF037707; MAS20_rcpt; 1.
DR   PRINTS; PR01989; EUOM20RECPTR.
DR   PRINTS; PR00351; OM20RECEPTOR.
DR   SUPFAM; SSF47157; SSF47157; 1.
DR   TIGRFAMs; TIGR00985; 3a0801s04tom; 1.
PE   2: Evidence at transcript level;
KW   Isopeptide bond; Membrane; Mitochondrion; Mitochondrion outer membrane;
KW   Phosphoprotein; Protein transport; Reference proteome; Transmembrane;
KW   Transmembrane helix; Transport; Ubl conjugation.
FT   CHAIN           1..145
FT                   /note="Mitochondrial import receptor subunit TOM20 homolog"
FT                   /id="PRO_0000051540"
FT   TOPO_DOM        1..6
FT                   /note="Mitochondrial intermembrane"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        7..24
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        25..145
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000255"
FT   MOD_RES         135
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:Q15388"
FT   MOD_RES         138
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:Q15388"
FT   CROSSLNK        35
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in ubiquitin)"
FT                   /evidence="ECO:0000250|UniProtKB:Q15388"
FT   CROSSLNK        56
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in ubiquitin)"
FT                   /evidence="ECO:0000250|UniProtKB:Q15388"
FT   CROSSLNK        61
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in ubiquitin)"
FT                   /evidence="ECO:0000250|UniProtKB:Q15388"
FT   CROSSLNK        68
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in ubiquitin)"
FT                   /evidence="ECO:0000250|UniProtKB:Q15388"
SQ   SEQUENCE   145 AA;  16298 MW;  5153BD25AC5D9B3A CRC64;
     MVGRNSAIAA GVCGALFIGY CIYFDRKRRS DPNFKNRLRE RRKKQKLAKE RAGLSKLPDL
     KDAEAVQKFF LEEIQLGEEL LAQGEYEKGV DHLTNAIAVC GQPQQLLQVL QQTLPPPVFQ
     MLLTKLPTIS QRIVSAQSLA EDDVE