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Protein

Proteasome subunit alpha type-6

Gene

PSMA6

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

Component of the 20S core proteasome complex involved in the proteolytic degradation of most intracellular proteins. This complex plays numerous essential roles within the cell by associating with different regulatory particles. Associated with two 19S regulatory particles, forms the 26S proteasome and thus participates in the ATP-dependent degradation of ubiquitinated proteins. The 26S proteasome plays a key role in the maintenance of protein homeostasis by removing misfolded or damaged proteins that could impair cellular functions, and by removing proteins whose functions are no longer required. Associated with the PA200 or PA28, the 20S proteasome mediates ubiquitin-independent protein degradation. This type of proteolysis is required in several pathways including spermatogenesis (20S-PA200 complex) or generation of a subset of MHC class I-presented antigenic peptides (20S-PA28 complex).By similarity

Catalytic activityi

Cleavage of peptide bonds with very broad specificity.

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionHydrolase, Protease, Threonine protease

Protein family/group databases

MEROPSiT01.971.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit alpha type-6 (EC:3.4.25.1By similarity)
Gene namesi
Name:PSMA6
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
Proteomesi
  • UP000009136 Componenti: Unplaced

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm, Nucleus, Proteasome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002740341 – 246Proteasome subunit alpha type-6Add BLAST246

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Glycosylationi5O-linked (GlcNAc) serineBy similarity1
Modified residuei17PhosphoserineBy similarity1
Modified residuei63PhosphoserineBy similarity1
Modified residuei64PhosphoserineBy similarity1
Modified residuei102N6-acetyllysineBy similarity1
Modified residuei104N6-acetyllysineBy similarity1
Modified residuei159PhosphotyrosineBy similarity1

Keywords - PTMi

Acetylation, Glycoprotein, Phosphoprotein

Proteomic databases

PaxDbiQ2YDE4.
PeptideAtlasiQ2YDE4.
PRIDEiQ2YDE4.

Interactioni

Subunit structurei

The 26S proteasome consists of a 20S proteasome core and two 19S regulatory subunits. The 20S proteasome core is a barrel-shaped complex made of 28 subunits that are arranged in four stacked rings. The two outer rings are each formed by seven alpha subunits, and the two inner rings are formed by seven beta subunits. The proteolytic activity is exerted by three beta-subunits PSMB5, PSMB6 and PSMB7 (PubMed:12015144). Interacts with ALKBH4 (By similarity).By similarity1 Publication

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000012773.

Structurei

Secondary structure

1246
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Turni8 – 12Combined sources5
Helixi23 – 33Combined sources11
Beta strandi38 – 43Combined sources6
Beta strandi45 – 53Combined sources9
Beta strandi59 – 61Combined sources3
Helixi63 – 65Combined sources3
Beta strandi68 – 75Combined sources8
Beta strandi77 – 82Combined sources6
Helixi84 – 105Combined sources22
Helixi111 – 127Combined sources17
Beta strandi128 – 131Combined sources4
Beta strandi135 – 144Combined sources10
Turni145 – 147Combined sources3
Beta strandi148 – 154Combined sources7
Beta strandi160 – 169Combined sources10
Helixi172 – 182Combined sources11
Helixi191 – 205Combined sources15
Beta strandi214 – 221Combined sources8
Beta strandi224 – 229Combined sources6
Helixi232 – 243Combined sources12

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1IRUX-ray2.75A/O1-246[»]
ProteinModelPortaliQ2YDE4.
SMRiQ2YDE4.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ2YDE4.

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1A family.

Phylogenomic databases

eggNOGiKOG0182. Eukaryota.
ENOG410XR7X. LUCA.
HOGENOMiHOG000091084.
HOVERGENiHBG107363.
InParanoidiQ2YDE4.
KOiK02730.

Family and domain databases

CDDicd03754. proteasome_alpha_type_6. 1 hit.
Gene3Di3.60.20.10. 1 hit.
InterProiView protein in InterPro
IPR029055. Ntn_hydrolases_N.
IPR023332. Proteasome_alpha-type.
IPR000426. Proteasome_asu_N.
IPR001353. Proteasome_sua/b.
IPR034642. Proteasome_subunit_alpha6.
PANTHERiPTHR11599:SF11. PTHR11599:SF11. 1 hit.
PfamiView protein in Pfam
PF00227. Proteasome. 1 hit.
PF10584. Proteasome_A_N. 1 hit.
SMARTiView protein in SMART
SM00948. Proteasome_A_N. 1 hit.
SUPFAMiSSF56235. SSF56235. 1 hit.
PROSITEiView protein in PROSITE
PS00388. PROTEASOME_ALPHA_1. 1 hit.
PS51475. PROTEASOME_ALPHA_2. 1 hit.

Sequencei

Sequence statusi: Complete.

Q2YDE4-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSRGSSAGFD RHITIFSPEG RLYQVEYAFK AINQGGLTSV AVRGKDCAVI
60 70 80 90 100
VTQKKVPDKL LDSSTVTHLF KITENIGCVM TGMTADSRSQ VQRARYEAAN
110 120 130 140 150
WKYKYGYEIP VDMLCKRIAD ISQVYTQNAE MRPLGCCMIL IGIDEEQGPQ
160 170 180 190 200
VYKCDPAGYY CGFKATAAGV KQTESTSFLE KKVKKKFDWT FEQTVETAIT
210 220 230 240
CLSTVLSIDF KPSEIEVGVV TVENPKFRIL TEAEIDAHLV ALAERD
Length:246
Mass (Da):27,399
Last modified:December 20, 2005 - v1
Checksum:i94D1FD3C0A7CC72A
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC110260 mRNA. Translation: AAI10261.1.
RefSeqiNP_001039427.1. NM_001045962.1.
UniGeneiBt.15837.

Genome annotation databases

GeneIDi507213.
KEGGibta:507213.

Similar proteinsi

Entry informationi

Entry nameiPSA6_BOVIN
AccessioniPrimary (citable) accession number: Q2YDE4
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 23, 2007
Last sequence update: December 20, 2005
Last modified: October 25, 2017
This is version 108 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. Peptidase families
    Classification of peptidase families and list of entries
  3. SIMILARITY comments
    Index of protein domains and families