PSMF1
Sign in to saveAlso known as PI31, proteasome inhibitor subunit 1
Proteasome inhibitor PI31 subunit is a protein that in humans is encoded by the PSMF1 gene.
Gene data
PSMF1- Name
- proteasome inhibitor subunit 1
- Type
- protein-coding
- Position
- 1,113,240–1,192,353 (+)
- Aliases
- PI31
- Ensembl
- ENSG00000125818
- RefSeq RNA
- NM_001323407.2, NM_001323408.2, NM_001323409.2, NM_001323410.2, NM_006814.5
- RefSeq protein
- NP_001310336.1, NP_001310337.1, NP_001310338.1, NP_001310339.1, NP_006805.2
The 26S proteasome is a multicatalytic proteinase complex with a highly ordered structure composed of 2 complexes, a 20S core and a 19S regulator. The 20S core is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. The 19S regulator is composed of a base, which contains 6 ATPase subunits and 2 non-ATPase subunits, and a lid, which contains up to 10 non-ATPase subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. This gene encodes a protein that inhibits the activation of the proteasome by the 11S and 19S regulators. Alternative transcript variants have been identified for this gene. [provided by RefSeq, Jul 2008].
Gene Ontology
Biological process
Molecular function
Pathways
via MyGene.info
Gene · Ensembl
proteasome inhibitor subunit 1
- Symbol
- PSMF1
- Biotype
- Protein coding
- Organism
- Homo sapiens
- Location
- 20:1,113,240-1,192,353
- Strand
- Forward (+)
- Assembly
- GRCh38
via Ensembl · EMBL-EBI
Wikidata facts
- Instance of
- gene
Show 8 more facts
- HomoloGene ID
- 38231
- found in taxon
- Homo sapiens
- exact match
- identifiers.org/ncbigene/9491
- chromosome
- human chromosome 20
- genomic start
- 1113240
- genomic end
- 1160596
- cytogenetic location
- 20p13
- expressed in
- islet of Langerhans
Sources (4)
via Wikidata · CC0
~2 min read
Encyclopedic overview
3 sectionsContents
- Function
- References
- Further reading
Proteasome inhibitor PI31 subunit is a protein that in humans is encoded by the PSMF1 gene.
== Function ==
Excerpted from Wikipedia’s “PSMF1” article, available under the CC BY-SA 4.0 licence.