PSB_JONDD
ID PSB_JONDD Reviewed; 302 AA.
AC C7R403;
DT 10-AUG-2010, integrated into UniProtKB/Swiss-Prot.
DT 13-OCT-2009, sequence version 1.
DT 25-MAY-2022, entry version 63.
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 PrcB {ECO:0000255|HAMAP-Rule:MF_02113};
DE Flags: Precursor;
GN Name=prcB {ECO:0000255|HAMAP-Rule:MF_02113}; OrderedLocusNames=Jden_1204;
OS Jonesia denitrificans (strain ATCC 14870 / DSM 20603 / BCRC 15368 / CIP
OS 55.134 / JCM 11481 / NBRC 15587 / NCTC 10816 / Prevot 55134) (Listeria
OS denitrificans).
OC Bacteria; Actinobacteria; Micrococcales; Jonesiaceae; Jonesia.
OX NCBI_TaxID=471856;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 14870 / DSM 20603 / BCRC 15368 / CIP 55.134 / JCM 11481 / NBRC
RC 15587 / NCTC 10816 / Prevot 55134;
RX PubMed=21304666; DOI=10.4056/sigs.41646;
RA Pukall R., Gehrich-Schroter G., Lapidus A., Nolan M., Glavina Del Rio T.,
RA Lucas S., Chen F., Tice H., Pitluck S., Cheng J.F., Copeland A.,
RA Saunders E., Brettin T., Detter J.C., Bruce D., Goodwin L., Pati A.,
RA Ivanova N., Mavromatis K., Ovchinnikova G., Chen A., Palaniappan K.,
RA Land M., Hauser L., Chang Y.J., Jeffries C.D., Chain P., Goker M.,
RA Bristow J., Eisen J.A., Markowitz V., Hugenholtz P., Kyrpides N.C.,
RA Klenk H.P., Han C.;
RT "Complete genome sequence of Jonesia denitrificans type strain (Prevot
RT 55134).";
RL Stand. Genomic Sci. 1:262-269(2009).
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 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_02113}.
CC -!- PATHWAY: Protein degradation; proteasomal Pup-dependent pathway.
CC {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 by the proteasome-associated ATPase, ARC. {ECO:0000255|HAMAP-
CC 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}.
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DR EMBL; CP001706; ACV08860.1; -; Genomic_DNA.
DR RefSeq; WP_015771488.1; NC_013174.1.
DR AlphaFoldDB; C7R403; -.
DR SMR; C7R403; -.
DR STRING; 471856.Jden_1204; -.
DR EnsemblBacteria; ACV08860; ACV08860; Jden_1204.
DR KEGG; jde:Jden_1204; -.
DR eggNOG; COG0638; Bacteria.
DR HOGENOM; CLU_035750_2_0_11; -.
DR OMA; NLGMAMQ; -.
DR OrthoDB; 1129370at2; -.
DR UniPathway; UPA00997; -.
DR Proteomes; UP000000628; 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: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_02113_B; Proteasome_B_B; 1.
DR InterPro; IPR029055; Ntn_hydrolases_N.
DR InterPro; IPR001353; Proteasome_sua/b.
DR InterPro; IPR023333; Proteasome_suB-type.
DR InterPro; IPR022483; PSB_actinobac.
DR Pfam; PF00227; Proteasome; 1.
DR SUPFAM; SSF56235; SSF56235; 1.
DR TIGRFAMs; TIGR03690; 20S_bact_beta; 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..50
FT /note="Removed in mature form; by autocatalysis"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02113"
FT /id="PRO_0000397514"
FT CHAIN 51..302
FT /note="Proteasome subunit beta"
FT /id="PRO_0000397515"
FT REGION 277..302
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 287..302
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 51
FT /note="Nucleophile"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02113"
SQ SEQUENCE 302 AA; 32778 MW; 535BF8CFC4E62376 CRC64;
MTITGSRGFP DGYLAPGSSF LDFAAQHAPT IMPGTQPTFD TIPQDIAPHG TTIVALEYHN
GIIIAGDRRA TMGTTIAHRE IEKVFAADEH SAIAIAGTAG LAIELVRLFQ LELEHYEKIE
GTPLSLDGKA NRLSTMLRSH LHLALQGLPI VPIFAGWDST RHQGRLFAYD VTGGRYEEPN
FTCAGSGSVF ARSALKKLWK PQLDATRAIT IALEALWDAA DDDTATAGPD IIRRIWPIIA
VIDHKGFRYV SEADLAHAND TIAHQRSQDH QHVRVLEPGR DGPGNRLPSQ GSATIIPESD
QS
