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Protein

Proteasome subunit alpha type-5

Gene

Psma5

Organism
Rattus norvegicus (Rat)
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.PROSITE-ProRule annotation

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionHydrolase, Protease, Threonine protease

Protein family/group databases

MEROPSiT01.975.

Names & Taxonomyi

Protein namesi
Recommended name:
Proteasome subunit alpha type-5 (EC:3.4.25.1By similarity)
Alternative name(s):
Macropain zeta chain
Multicatalytic endopeptidase complex zeta chain
Proteasome zeta chain
Gene namesi
Name:Psma5
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
Proteomesi
  • UP000002494 Componenti: Unplaced

Organism-specific databases

RGDi61848. Psma5.

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_00001241191 – 241Proteasome subunit alpha type-5Add BLAST241

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei1N-acetylmethionineBy similarity1
Modified residuei16PhosphoserineCombined sources1
Modified residuei55PhosphothreonineBy similarity1
Modified residuei56PhosphoserineCombined sources1
Modified residuei63PhosphoserineBy similarity1
Glycosylationi198O-linked (GlcNAc) serineBy similarity1

Keywords - PTMi

Acetylation, Glycoprotein, Phosphoprotein

Proteomic databases

PaxDbiP34064.
PRIDEiP34064.

PTM databases

iPTMnetiP34064.
PhosphoSitePlusiP34064.

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. PSMA5 interacts directly with the PSMG1-PSMG2 heterodimer which promotes 20S proteasome assembly.By similarity

Protein-protein interaction databases

BioGridi248293. 1 interactor.
IntActiP34064. 1 interactor.
STRINGi10116.ENSRNOP00000026928.

Structurei

3D structure databases

ProteinModelPortaliP34064.
SMRiP34064.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase T1A family.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiKOG0176. Eukaryota.
COG0638. LUCA.
HOGENOMiHOG000091085.
HOVERGENiHBG003005.
InParanoidiP34064.
PhylomeDBiP34064.

Family and domain databases

CDDicd03753. proteasome_alpha_type_5. 1 hit.
Gene3Di3.60.20.10. 1 hit.
InterProiView protein in InterPro
IPR029055. Ntn_hydrolases_N.
IPR023332. Proteasome_alpha-type.
IPR033812. Proteasome_alpha_type_5.
IPR000426. Proteasome_asu_N.
IPR001353. Proteasome_sua/b.
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.

P34064-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MFLTRSEYDR GVNTFSPEGR LFQVEYAIEG HKLGSTAIGI QTSEGVCLAV
60 70 80 90 100
EKRITSPLME PSSIEKIVEI DAHIGCAMSG LIADAKTLID KARVETQNHW
110 120 130 140 150
FTYNETMTVE SVTQAVSNLA LQFGEEDADP GAMSRPFGVA LLFGGVDEKG
160 170 180 190 200
PQLFHMDPSG TFVQCDARAI GSASEGAQSS LQEVYHKSTT LKEAIKSSLI
210 220 230 240
ILKQVMEEKL NATNIELATV QPGQNFHMFT KEELEEVIKD I
Length:241
Mass (Da):26,391
Last modified:February 1, 1994 - v1
Checksum:i97491D1974D1483D
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
D10756 mRNA. Translation: BAA01588.1.
PIRiJX0229.
UniGeneiRn.1276.

Genome annotation databases

UCSCiRGD:61848. rat.

Similar proteinsi

Entry informationi

Entry nameiPSA5_RAT
AccessioniPrimary (citable) accession number: P34064
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 1, 1994
Last sequence update: February 1, 1994
Last modified: November 22, 2017
This is version 131 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

Complete proteome, Reference proteome

Documents

  1. Peptidase families
    Classification of peptidase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families