PSA_STRAW
ID PSA_STRAW Reviewed; 253 AA.
AC Q828I7;
DT 10-AUG-2010, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2003, sequence version 1.
DT 25-MAY-2022, entry version 108.
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}; OrderedLocusNames=SAV_6682;
OS Streptomyces avermitilis (strain ATCC 31267 / DSM 46492 / JCM 5070 / NBRC
OS 14893 / NCIMB 12804 / NRRL 8165 / MA-4680).
OC Bacteria; Actinobacteria; Streptomycetales; Streptomycetaceae;
OC Streptomyces.
OX NCBI_TaxID=227882;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 31267 / DSM 46492 / JCM 5070 / NBRC 14893 / NCIMB 12804 / NRRL
RC 8165 / MA-4680;
RX PubMed=11572948; DOI=10.1073/pnas.211433198;
RA Omura S., Ikeda H., Ishikawa J., Hanamoto A., Takahashi C., Shinose M.,
RA Takahashi Y., Horikawa H., Nakazawa H., Osonoe T., Kikuchi H., Shiba T.,
RA Sakaki Y., Hattori M.;
RT "Genome sequence of an industrial microorganism Streptomyces avermitilis:
RT deducing the ability of producing secondary metabolites.";
RL Proc. Natl. Acad. Sci. U.S.A. 98:12215-12220(2001).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 31267 / DSM 46492 / JCM 5070 / NBRC 14893 / NCIMB 12804 / NRRL
RC 8165 / MA-4680;
RX PubMed=12692562; DOI=10.1038/nbt820;
RA Ikeda H., Ishikawa J., Hanamoto A., Shinose M., Kikuchi H., Shiba T.,
RA Sakaki Y., Hattori M., Omura S.;
RT "Complete genome sequence and comparative analysis of the industrial
RT microorganism Streptomyces avermitilis.";
RL Nat. Biotechnol. 21:526-531(2003).
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; BA000030; BAC74393.1; -; Genomic_DNA.
DR RefSeq; WP_010988082.1; NZ_JZJK01000082.1.
DR AlphaFoldDB; Q828I7; -.
DR SMR; Q828I7; -.
DR STRING; 227882.SAV_6682; -.
DR MEROPS; T01.980; -.
DR EnsemblBacteria; BAC74393; BAC74393; SAVERM_6682.
DR KEGG; sma:SAVERM_6682; -.
DR eggNOG; COG0638; Bacteria.
DR HOGENOM; CLU_071031_0_0_11; -.
DR OMA; QIYRLPH; -.
DR OrthoDB; 1243753at2; -.
DR UniPathway; UPA00997; -.
DR Proteomes; UP000000428; 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; -; 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 PANTHER; PTHR11599:SF69; PTHR11599:SF69; 1.
DR Pfam; PF00227; Proteasome; 1.
DR SUPFAM; SSF56235; SSF56235; 1.
DR TIGRFAMs; TIGR03691; 20S_bact_alpha; 1.
DR PROSITE; PS51475; PROTEASOME_ALPHA_2; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Proteasome; Reference proteome.
FT CHAIN 1..253
FT /note="Proteasome subunit alpha"
FT /id="PRO_0000397176"
FT REGION 232..253
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ SEQUENCE 253 AA; 27709 MW; CCB0A450F76965F4 CRC64;
MSTPFYVSPQ QAMADRAEYA RKGIARGRSL VVLQFADGIV FVGENPSRAL HKFSEIYDRI
GFAAAGKYNE YENLRIGGVR YADLRGYTYD RDDVTARGLA NVYAQTLGTI FSSAAEKPYE
VELVVAEVGE TPEGDQIYRL PHDGSIVDEH GSVAVGGNAE QISTYLDQRH QDGMTLAEAL
KLAVQSLSRD TNGSEREIPA ERLEVAVLDR TRPQQRKFKR IVGRELSRLL EAAGASTAGE
AGSAEDEGSD DEK
