ID   PSA_RENSM               Reviewed;         242 AA.
AC   A9WSI0;
DT   10-AUG-2010, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 1.
DT   27-MAR-2024, entry version 88.
DE   RecName: Full=Proteasome subunit alpha {ECO:0000255|HAMAP-Rule:MF_00289};
DE   AltName: Full=20S proteasome alpha subunit {ECO:0000255|HAMAP-Rule:MF_00289};
DE   AltName: Full=Proteasome core protein PrcA {ECO:0000255|HAMAP-Rule:MF_00289};
GN   Name=prcA {ECO:0000255|HAMAP-Rule:MF_00289};
GN   OrderedLocusNames=RSal33209_2035;
OS   Renibacterium salmoninarum (strain ATCC 33209 / DSM 20767 / JCM 11484 /
OS   NBRC 15589 / NCIMB 2235).
OC   Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Micrococcaceae;
OC   Renibacterium.
OX   NCBI_TaxID=288705;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33209 / DSM 20767 / JCM 11484 / NBRC 15589 / NCIMB 2235;
RX   PubMed=18723615; DOI=10.1128/jb.00721-08;
RA   Wiens G.D., Rockey D.D., Wu Z., Chang J., Levy R., Crane S., Chen D.S.,
RA   Capri G.R., Burnett J.R., Sudheesh P.S., Schipma M.J., Burd H.,
RA   Bhattacharyya A., Rhodes L.D., Kaul R., Strom M.S.;
RT   "Genome sequence of the fish pathogen Renibacterium salmoninarum suggests
RT   reductive evolution away from an environmental Arthrobacter ancestor.";
RL   J. Bacteriol. 190:6970-6982(2008).
CC   -!- FUNCTION: Component of the proteasome core, a large protease complex
CC       with broad specificity involved in protein degradation.
CC       {ECO:0000255|HAMAP-Rule:MF_00289}.
CC   -!- ACTIVITY REGULATION: The formation of the proteasomal ATPase ARC-20S
CC       proteasome complex, likely via the docking of the C-termini of ARC into
CC       the intersubunit pockets in the alpha-rings, may trigger opening of the
CC       gate for substrate entry. Interconversion between the open-gate and
CC       close-gate conformations leads to a dynamic regulation of the 20S
CC       proteasome proteolysis activity. {ECO:0000255|HAMAP-Rule:MF_00289}.
CC   -!- PATHWAY: Protein degradation; proteasomal Pup-dependent pathway.
CC       {ECO:0000255|HAMAP-Rule:MF_00289}.
CC   -!- SUBUNIT: The 20S proteasome core is composed of 14 alpha and 14 beta
CC       subunits that assemble into four stacked heptameric rings, resulting in
CC       a barrel-shaped structure. The two inner rings, each composed of seven
CC       catalytic beta subunits, are sandwiched by two outer rings, each
CC       composed of seven alpha subunits. The catalytic chamber with the active
CC       sites is on the inside of the barrel. Has a gated structure, the ends
CC       of the cylinder being occluded by the N-termini of the alpha-subunits.
CC       Is capped by the proteasome-associated ATPase, ARC. {ECO:0000255|HAMAP-
CC       Rule:MF_00289}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00289}.
CC   -!- SIMILARITY: Belongs to the peptidase T1A family. {ECO:0000255|HAMAP-
CC       Rule:MF_00289}.
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DR   EMBL; CP000910; ABY23768.1; -; Genomic_DNA.
DR   RefSeq; WP_012245438.1; NC_010168.1.
DR   AlphaFoldDB; A9WSI0; -.
DR   SMR; A9WSI0; -.
DR   STRING; 288705.RSal33209_2035; -.
DR   MEROPS; T01.980; -.
DR   KEGG; rsa:RSal33209_2035; -.
DR   eggNOG; COG0638; Bacteria.
DR   HOGENOM; CLU_071031_0_0_11; -.
DR   UniPathway; UPA00997; -.
DR   Proteomes; UP000002007; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0019773; C:proteasome core complex, alpha-subunit complex; IEA:UniProtKB-UniRule.
DR   GO; GO:0004298; F:threonine-type endopeptidase activity; IEA:InterPro.
DR   GO; GO:0019941; P:modification-dependent protein catabolic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0010498; P:proteasomal protein catabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.60.20.10; Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1; 1.
DR   HAMAP; MF_00289_B; Proteasome_A_B; 1.
DR   InterPro; IPR029055; Ntn_hydrolases_N.
DR   InterPro; IPR023332; Proteasome_alpha-type.
DR   InterPro; IPR022296; Proteasome_asu_bac.
DR   InterPro; IPR001353; Proteasome_sua/b.
DR   NCBIfam; TIGR03691; 20S_bact_alpha; 1.
DR   Pfam; PF00227; Proteasome; 1.
DR   SUPFAM; SSF56235; N-terminal nucleophile aminohydrolases (Ntn hydrolases); 1.
DR   PROSITE; PS51475; PROTEASOME_ALPHA_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Proteasome; Reference proteome.
FT   CHAIN           1..242
FT                   /note="Proteasome subunit alpha"
FT                   /id="PRO_0000397166"
SQ   SEQUENCE   242 AA;  25828 MW;  C80F3E2DED32427E CRC64;
     MTQQFYVSPE QVMKDRADFA RKGIARGRSV VVVSSLEGIA LVAENPSPSL HKIGEIYDKI
     AFAAVGKYNE FESLRQAGVR YADVRGYSYD RDDVTARGLA SVYAQSLGAV FTAEQKPFEV
     ELAVAEVGEN QDQDHLYRLT FDGSIADETG FIAMGGQVDS VHQVVAAGWA SGSSLADVVG
     LAVGALGAGR EPVVELDAAN LEIAVLDRDS ETSRGVARAF RRLNANEVND LLSPRGSGSP
     AE
//