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Gene: SMIM20 (small integral membrane protein 20) Homo sapiens
Symbol: SMIM20
Name: small integral membrane protein 20
Description: Involved in mitochondrial cytochrome c oxidase assembly. Localizes to mitochondrial inner membrane; INTERACTS WITH all-trans-retinoic acid; bisphenol A; dicrotophos.
Type: protein-coding
RefSeq Status: VALIDATED
Also known as: C4orf52; hypothetical protein LOC389203; mitochondrial translation regulation assembly intermediate of cytochrome c oxidase protein of 7 kDa; MITRAC7; phoenixin; PNX; uncharacterized protein C4orf52
Mus musculus (house mouse) : Smim20 (small integral membrane protein 20)  MGI  Alliance
Rattus norvegicus (Norway rat) : Smim20 (small integral membrane protein 20)  Alliance
Chinchilla lanigera (long-tailed chinchilla) : Smim20 (small integral membrane protein 20)
Pan paniscus (bonobo/pygmy chimpanzee) : SMIM20 (small integral membrane protein 20)
Canis lupus familiaris (dog) : SMIM20 (small integral membrane protein 20)
Ictidomys tridecemlineatus (thirteen-lined ground squirrel) : Smim20 (small integral membrane protein 20)
Sus scrofa (pig) : SMIM20 (small integral membrane protein 20)
Chlorocebus sabaeus (African green monkey) : SMIM20 (small integral membrane protein 20)
Heterocephalus glaber (naked mole-rat) : Smim20 (small integral membrane protein 20)
more info ...
Allele / Splice: See ClinVar data
Latest Assembly: GRCh38 - Human Genome Assembly GRCh38
Human AssemblyChrPosition (strand)SourceGenome Browsers
GRCh38.p13 Ensembl425,861,830 - 25,929,874 (+)EnsemblGRCh38hg38GRCh38
GRCh38425,914,192 - 25,929,879 (+)NCBIGRCh38GRCh38hg38GRCh38
GRCh37425,915,528 - 25,931,501 (+)NCBIGRCh37GRCh37hg19GRCh37
Build 36425,524,626 - 25,540,611 (+)NCBINCBI36hg18NCBI36
Celera426,363,965 - 26,380,057 (+)NCBI
Cytogenetic Map4p15.2NCBI
HuRef425,254,090 - 25,269,776 (+)NCBIHuRef
CHM1_1425,915,589 - 25,931,294 (+)NCBICHM1_1
JBrowse: View Region in Genome Browser (JBrowse)

Gene-Chemical Interaction Annotations
Gene Ontology Annotations
References - curated
References - uncurated


Comparative Map Data
miRNA Target Status


RNA-SEQ Expression


Nucleotide Sequences
Protein Sequences
Clinical Variants

Additional Information

External Database Links
Nomenclature History
More on SMIM20
Alliance Gene
Ensembl Gene
JBrowse: hg19 hg38
HGNC Report
NCBI Genome Data Viewer

RGD Object Information
RGD ID: 3418804
Created: 2010-07-04
Species: Homo sapiens
Last Modified: 2020-06-18
Status: ACTIVE


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.