PSME1

Last updated
PSME1
Protein PSME1 PDB 1avo.png
Available structures
PDB Ortholog search: PDBe RCSB
Identifiers
Aliases PSME1 , IFI5111, PA28A, PA28alpha, REGalpha, HEL-S-129m, proteasome activator subunit 1
External IDs OMIM: 600654 MGI: 1096367 HomoloGene: 4560 GeneCards: PSME1
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_176783
NM_001281528
NM_001281529
NM_006263

NM_011189

RefSeq (protein)

NP_001268457
NP_001268458
NP_006254
NP_788955

NP_035319

Location (UCSC) Chr 14: 24.14 – 24.14 Mb Chr 14: 55.82 – 55.82 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Proteasome activator complex subunit 1 is a protein that in humans is encoded by the PSME1 gene. [5] [6]

Contents

Function

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. The immunoproteasome contains an alternate regulator, referred to as the 11S regulator or PA28, that replaces the 19S regulator. Three subunits (alpha, beta and gamma) of the 11S regulator have been identified. This gene encodes the alpha subunit of the 11S regulator, one of the two 11S subunits that is induced by gamma-interferon. Three alpha and three beta subunits combine to form a heterohexameric ring. Two transcripts encoding different isoforms have been identified. [6]

Interactions

PSME1 has been shown to interact with:

Related Research Articles

<span class="mw-page-title-main">PSMB1</span> Protein found in humans

Proteasome subunit beta type-1 also known as 20S proteasome subunit beta-6 is a protein that in humans is encoded by the PSMB1 gene. This protein is one of the 17 essential subunits that contributes to the complete assembly of 20S proteasome complex. In particular, proteasome subunit beta type-1, along with other beta subunits, assemble into two heptameric rings and subsequently a proteolytic chamber for substrate degradation. The eukaryotic proteasome recognized degradable proteins, including damaged proteins for protein quality control purpose or key regulatory protein components for dynamic biological processes. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides.

<span class="mw-page-title-main">PSMB4</span> Protein found in humans

Proteasome subunit beta type-4 also known as 20S proteasome subunit beta-7 is a protein that in humans is encoded by the PSMB4 gene.

<span class="mw-page-title-main">PSMB10</span> Protein found in humans

Proteasome subunit beta type-10 as known as 20S proteasome subunit beta-2i is a protein that in humans is encoded by the PSMB10 gene.

<span class="mw-page-title-main">PSMB2</span> Protein found in humans

Proteasome subunit beta type-2 also known as 20S proteasome subunit beta-4 is a protein that in humans is encoded by the PSMB2 gene. This protein is one of the 17 essential subunits that contributes to the complete assembly of 20S proteasome complex. In particular, proteasome subunit beta type-2, along with other beta subunits, assemble into two heptameric rings and subsequently a proteolytic chamber for substrate degradation. The eukaryotic proteasome recognized degradable proteins, including damaged proteins for protein quality control purpose or key regulatory protein components for dynamic biological processes. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides.

<span class="mw-page-title-main">PSMB3</span> Protein found in humans

Proteasome subunit beta type-3, also known as 20S proteasome subunit beta-3, is a protein that in humans is encoded by the PSMB3 gene. This protein is one of the 17 essential subunits that contribute to the complete assembly of the 20S proteasome complex. In particular, proteasome subunit beta type-2, along with other beta subunits, assemble into two heptameric rings and subsequently a proteolytic chamber for substrate degradation. The eukaryotic proteasome recognizes degradable proteins, including damaged proteins for protein quality control purpose or key regulatory protein components for dynamic biological processes.

<span class="mw-page-title-main">PSMB8</span> Protein found in humans

Proteasome subunit beta type-8 as known as 20S proteasome subunit beta-5i is a protein that in humans is encoded by the PSMB8 gene. This protein is one of the 17 essential subunits that contributes to the complete assembly of 20S proteasome complex. In particular, proteasome subunit beta type-5, along with other beta subunits, assemble into two heptameric rings and subsequently a proteolytic chamber for substrate degradation. This protein contains "Chymotrypsin-like" activity and is capable of cleaving after large hydrophobic residues of peptide. The eukaryotic proteasome recognized degradable proteins, including damaged proteins for protein quality control purpose or key regulatory protein components for dynamic biological processes. The constitutive subunit beta1, beta2, and beta 5 can be replaced by their inducible counterparts beta1i, 2i, and 5i when cells are under the treatment of interferon-γ. The resulting proteasome complex becomes the so-called immunoproteasome. An essential function of the modified proteasome complex, the immunoproteasome, is the processing of numerous MHC class-I restricted T cell epitopes.

<span class="mw-page-title-main">PSMB9</span> Protein found in humans

Proteasome subunit beta type-9 as known as 20S proteasome subunit beta-1i is a protein that in humans is encoded by the PSMB9 gene.

<span class="mw-page-title-main">PSMC2</span> Enzyme found in humans

26S protease regulatory subunit 7, also known as 26S proteasome AAA-ATPase subunit Rpt1, is an enzyme that in humans is encoded by the PSMC2 gene This protein is one of the 19 essential subunits of a complete assembled 19S proteasome complex. Six 26S proteasome AAA-ATPase subunits together with four non-ATPase subunits form the base sub complex of 19S regulatory particle for proteasome complex.

<span class="mw-page-title-main">PSMA6</span> Protein found in humans

Proteasome subunit alpha type-6 is a protein that in humans is encoded by the PSMA6 gene. This protein is one of the 17 essential subunits that contributes to the complete assembly of 20S proteasome complex.

<span class="mw-page-title-main">Proteasome (prosome, macropain) subunit, alpha 1</span> Protein-coding gene in the species Homo sapiens

Proteasome subunit alpha type-1 is a protein that in humans is encoded by the PSMA1 gene. This protein is one of the 17 essential subunits that contributes to the complete assembly of 20S proteasome complex.

<span class="mw-page-title-main">PSMB5</span> Protein found in humans

Proteasome subunit beta type-5 as known as 20S proteasome subunit beta-5 is a protein that in humans is encoded by the PSMB5 gene. This protein is one of the 17 essential subunits that contributes to the complete assembly of 20S proteasome complex. In particular, proteasome subunit beta type-5, along with other beta subunits, assemble into two heptameric rings and subsequently a proteolytic chamber for substrate degradation. This protein contains "chymotrypsin-like" activity and is capable of cleaving after large hydrophobic residues of peptide. The eukaryotic proteasome recognized degradable proteins, including damaged proteins for protein quality control purpose or key regulatory protein components for dynamic biological processes. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides.

<span class="mw-page-title-main">PSMC1</span> Enzyme found in humans

26S protease regulatory subunit 4, also known as 26S proteasome AAA-ATPase subunit Rpt2, is an enzyme that in humans is encoded by the PSMC1 gene. This protein is one of the 19 essential subunits of a complete assembled 19S proteasome complex. Six 26S proteasome AAA-ATPase subunits together with four non-ATPase subunits form the base sub complex of 19S regulatory particle for proteasome complex.

<span class="mw-page-title-main">PSME3</span> Protein found in humans

Proteasome activator complex subunit 3 is a protein that in humans is encoded by the PSME3 gene.

<span class="mw-page-title-main">PSMC4</span> Enzyme found in humans

26S protease regulatory subunit 6B, also known as 26S proteasome AAA-ATPase subunit Rpt3, is an enzyme that in humans is encoded by the PSMC4 gene. This protein is one of the 19 essential subunits of a complete assembled 19S proteasome complex Six 26S proteasome AAA-ATPase subunits together with four non-ATPase subunits form the base sub complex of 19S regulatory particle for proteasome complex.

<span class="mw-page-title-main">PSME2</span> Protein found in humans

Proteasome activator complex subunit 2 is a protein that in humans is encoded by the PSME2 gene.

<span class="mw-page-title-main">PSMF1</span> Protein found in humans

Proteasome inhibitor PI31 subunit is a protein that in humans is encoded by the PSMF1 gene.

<span class="mw-page-title-main">PSMA5</span> Protein found in humans

Proteasome subunit alpha type-5 also known as 20S proteasome subunit alpha-5 is a protein that in humans is encoded by the PSMA5 gene. This protein is one of the 17 essential subunits that contributes to the complete assembly of 20S proteasome complex.

<span class="mw-page-title-main">PSMB7</span> Protein found in humans

Proteasome subunit beta type-7 as known as 20S proteasome subunit beta-2 is a protein that in humans is encoded by the PSMB7 gene.

<span class="mw-page-title-main">PSMC6</span> Enzyme found in humans

26S protease regulatory subunit S10B, also known as 26S proteasome AAA-ATPase subunit Rpt4, is an enzyme that in humans is encoded by the PSMC6 gene. This protein is one of the 19 essential subunits of a complete assembled 19S proteasome complex Six 26S proteasome AAA-ATPase subunits together with four non-ATPase subunits form the base sub complex of 19S regulatory particle for proteasome complex.

<span class="mw-page-title-main">ADRM1</span> Protein-coding gene in the species Homo sapiens

Proteasomal ubiquitin receptor ADRM1 is a protein that in humans is encoded by the ADRM1 gene. Recent evidences on proteasome complex structure confirmed that the protein encoded by gene ADRM1, also known in yeast as 26S Proteasome regulatory subunit Rpn13, is a subunit of 19S proteasome complex.

References

  1. 1 2 3 ENSG00000284916 GRCh38: Ensembl release 89: ENSG00000092010, ENSG00000284916 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000022216 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Honoré B, Leffers H, Madsen P, Celis JE (Feb 1994). "Interferon-gamma up-regulates a unique set of proteins in human keratinocytes. Molecular cloning and expression of the cDNA encoding the RGD-sequence-containing protein IGUP I-5111". Eur J Biochem. 218 (2): 421–30. doi: 10.1111/j.1432-1033.1993.tb18392.x . PMID   8269930.
  6. 1 2 "Entrez Gene: PSME1 proteasome (prosome, macropain) activator subunit 1 (PA28 alpha)".
  7. Wilkinson FL, Holaska JM, Zhang Z, Sharma A, Manilal S, Holt I, Stamm S, Wilson KL, Morris GE (Jun 2003). "Emerin interacts in vitro with the splicing-associated factor, YT521-B". Eur. J. Biochem. 270 (11): 2459–66. doi: 10.1046/j.1432-1033.2003.03617.x . PMID   12755701.
  8. Rual JF, Venkatesan K, Hao T, Hirozane-Kishikawa T, Dricot A, Li N, Berriz GF, Gibbons FD, Dreze M, Ayivi-Guedehoussou N, Klitgord N, Simon C, Boxem M, Milstein S, Rosenberg J, Goldberg DS, Zhang LV, Wong SL, Franklin G, Li S, Albala JS, Lim J, Fraughton C, Llamosas E, Cevik S, Bex C, Lamesch P, Sikorski RS, Vandenhaute J, Zoghbi HY, Smolyar A, Bosak S, Sequerra R, Doucette-Stamm L, Cusick ME, Hill DE, Roth FP, Vidal M (Oct 2005). "Towards a proteome-scale map of the human protein-protein interaction network". Nature. 437 (7062): 1173–8. Bibcode:2005Natur.437.1173R. doi:10.1038/nature04209. PMID   16189514. S2CID   4427026.
  9. Ahn K, Erlander M, Leturcq D, Peterson PA, Früh K, Yang Y (Jul 1996). "In vivo characterization of the proteasome regulator PA28". J. Biol. Chem. 271 (30): 18237–42. doi: 10.1074/jbc.271.30.18237 . PMID   8663520.

Further reading