PSB_ARCPA
ID PSB_ARCPA Reviewed; 215 AA.
AC D2RGT4;
DT 10-AUG-2010, integrated into UniProtKB/Swiss-Prot.
DT 02-MAR-2010, sequence version 1.
DT 25-MAY-2022, entry version 60.
DE RecName: Full=Proteasome subunit beta {ECO:0000255|HAMAP-Rule:MF_02113};
DE EC=3.4.25.1 {ECO:0000255|HAMAP-Rule:MF_02113};
DE AltName: Full=20S proteasome beta subunit {ECO:0000255|HAMAP-Rule:MF_02113};
DE AltName: Full=Proteasome core protein PsmB {ECO:0000255|HAMAP-Rule:MF_02113};
DE Flags: Precursor;
GN Name=psmB {ECO:0000255|HAMAP-Rule:MF_02113}; OrderedLocusNames=Arcpr_0441;
OS Archaeoglobus profundus (strain DSM 5631 / JCM 9629 / NBRC 100127 / Av18).
OC Archaea; Euryarchaeota; Archaeoglobi; Archaeoglobales; Archaeoglobaceae;
OC Archaeoglobus.
OX NCBI_TaxID=572546;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 5631 / JCM 9629 / NBRC 100127 / Av18;
RX PubMed=21304717; DOI=10.4056/sigs.942153;
RA von Jan M., Lapidus A., Del Rio T.G., Copeland A., Tice H., Cheng J.F.,
RA Lucas S., Chen F., Nolan M., Goodwin L., Han C., Pitluck S., Liolios K.,
RA Ivanova N., Mavromatis K., Ovchinnikova G., Chertkov O., Pati A., Chen A.,
RA Palaniappan K., Land M., Hauser L., Chang Y.J., Jeffries C.D., Saunders E.,
RA Brettin T., Detter J.C., Chain P., Eichinger K., Huber H., Spring S.,
RA Rohde M., Goker M., Wirth R., Woyke T., Bristow J., Eisen J.A.,
RA Markowitz V., Hugenholtz P., Kyrpides N.C., Klenk H.P.;
RT "Complete genome sequence of Archaeoglobus profundus type strain (AV18).";
RL Stand. Genomic Sci. 2:327-346(2010).
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_02113}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Cleavage of peptide bonds with very broad specificity.;
CC EC=3.4.25.1; Evidence={ECO:0000255|HAMAP-Rule:MF_02113};
CC -!- ACTIVITY REGULATION: The formation of the proteasomal ATPase PAN-20S
CC proteasome complex, via the docking of the C-termini of PAN into the
CC intersubunit pockets in the alpha-rings, triggers opening of the gate
CC for substrate entry. Interconversion between the open-gate and close-
CC gate conformations leads to a dynamic regulation of the 20S proteasome
CC proteolysis activity. {ECO:0000255|HAMAP-Rule:MF_02113}.
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 at one or both ends by the proteasome regulatory ATPase, PAN.
CC {ECO:0000255|HAMAP-Rule:MF_02113}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_02113}.
CC -!- SIMILARITY: Belongs to the peptidase T1B family. {ECO:0000255|HAMAP-
CC Rule:MF_02113}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP001857; ADB57509.1; -; Genomic_DNA.
DR RefSeq; WP_012939845.1; NC_013741.1.
DR AlphaFoldDB; D2RGT4; -.
DR SMR; D2RGT4; -.
DR STRING; 572546.Arcpr_0441; -.
DR MEROPS; T01.002; -.
DR EnsemblBacteria; ADB57509; ADB57509; Arcpr_0441.
DR GeneID; 8739099; -.
DR KEGG; apo:Arcpr_0441; -.
DR eggNOG; arCOG00970; Archaea.
DR HOGENOM; CLU_035750_7_2_2; -.
DR OMA; VDKTGPH; -.
DR OrthoDB; 89767at2157; -.
DR Proteomes; UP000001901; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0019774; C:proteasome core complex, beta-subunit complex; IEA:UniProtKB-UniRule.
DR GO; GO:0004298; F:threonine-type endopeptidase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0010498; P:proteasomal protein catabolic process; IEA:UniProtKB-UniRule.
DR CDD; cd03764; proteasome_beta_archeal; 1.
DR Gene3D; 3.60.20.10; -; 1.
DR HAMAP; MF_02113_A; Proteasome_B_A; 1.
DR InterPro; IPR029055; Ntn_hydrolases_N.
DR InterPro; IPR019983; Pept_T1A_Psome_bsu_arc.
DR InterPro; IPR000243; Pept_T1A_subB.
DR InterPro; IPR016050; Proteasome_bsu_CS.
DR InterPro; IPR001353; Proteasome_sua/b.
DR InterPro; IPR023333; Proteasome_suB-type.
DR Pfam; PF00227; Proteasome; 1.
DR PRINTS; PR00141; PROTEASOME.
DR SUPFAM; SSF56235; SSF56235; 1.
DR TIGRFAMs; TIGR03634; arc_protsome_B; 1.
DR PROSITE; PS00854; PROTEASOME_BETA_1; 1.
DR PROSITE; PS51476; PROTEASOME_BETA_2; 1.
PE 3: Inferred from homology;
KW Autocatalytic cleavage; Cytoplasm; Hydrolase; Protease; Proteasome;
KW Reference proteome; Threonine protease; Zymogen.
FT PROPEP 1..12
FT /note="Removed in mature form; by autocatalysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02113"
FT /id="PRO_0000397278"
FT CHAIN 13..215
FT /note="Proteasome subunit beta"
FT /id="PRO_0000397279"
FT ACT_SITE 13
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02113"
SQ SEQUENCE 215 AA; 23457 MW; 1FB9E69F34BA738F CRC64;
MLGEIQDKVY KGTTTVGLVC KDGVVLATEK RATMGNFIAS RRAKKIYRIA DRVAMTTAGA
VGDAQFLARL ISVEIKLYEI RKEEKPTVKA IATLLSNILN SVRWFPYFVQ LLVGGVDKRG
PSIYSIDLLG GAIEEIDIVA TGSGSPTAYG VLEDRYTPEI TVDDGVELAV RAIYSAMRRD
SASGDGIDVV KITKDGYFEL SKEEVDKILS SLRRA
