ID   PSB2_SCHPO              Reviewed;         267 AA.
AC   Q09841;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   03-AUG-2022, entry version 163.
DE   RecName: Full=Probable proteasome subunit beta type-2;
DE            EC=3.4.25.1;
DE   Flags: Precursor;
GN   Name=pup1; ORFNames=SPAC23D3.07;
OS   Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast).
OC   Eukaryota; Fungi; Dikarya; Ascomycota; Taphrinomycotina;
OC   Schizosaccharomycetes; Schizosaccharomycetales; Schizosaccharomycetaceae;
OC   Schizosaccharomyces.
OX   NCBI_TaxID=284812;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=972 / ATCC 24843;
RX   PubMed=11859360; DOI=10.1038/nature724;
RA   Wood V., Gwilliam R., Rajandream M.A., Lyne M.H., Lyne R., Stewart A.,
RA   Sgouros J.G., Peat N., Hayles J., Baker S.G., Basham D., Bowman S.,
RA   Brooks K., Brown D., Brown S., Chillingworth T., Churcher C.M., Collins M.,
RA   Connor R., Cronin A., Davis P., Feltwell T., Fraser A., Gentles S.,
RA   Goble A., Hamlin N., Harris D.E., Hidalgo J., Hodgson G., Holroyd S.,
RA   Hornsby T., Howarth S., Huckle E.J., Hunt S., Jagels K., James K.D.,
RA   Jones L., Jones M., Leather S., McDonald S., McLean J., Mooney P.,
RA   Moule S., Mungall K.L., Murphy L.D., Niblett D., Odell C., Oliver K.,
RA   O'Neil S., Pearson D., Quail M.A., Rabbinowitsch E., Rutherford K.M.,
RA   Rutter S., Saunders D., Seeger K., Sharp S., Skelton J., Simmonds M.N.,
RA   Squares R., Squares S., Stevens K., Taylor K., Taylor R.G., Tivey A.,
RA   Walsh S.V., Warren T., Whitehead S., Woodward J.R., Volckaert G., Aert R.,
RA   Robben J., Grymonprez B., Weltjens I., Vanstreels E., Rieger M.,
RA   Schaefer M., Mueller-Auer S., Gabel C., Fuchs M., Duesterhoeft A.,
RA   Fritzc C., Holzer E., Moestl D., Hilbert H., Borzym K., Langer I., Beck A.,
RA   Lehrach H., Reinhardt R., Pohl T.M., Eger P., Zimmermann W., Wedler H.,
RA   Wambutt R., Purnelle B., Goffeau A., Cadieu E., Dreano S., Gloux S.,
RA   Lelaure V., Mottier S., Galibert F., Aves S.J., Xiang Z., Hunt C.,
RA   Moore K., Hurst S.M., Lucas M., Rochet M., Gaillardin C., Tallada V.A.,
RA   Garzon A., Thode G., Daga R.R., Cruzado L., Jimenez J., Sanchez M.,
RA   del Rey F., Benito J., Dominguez A., Revuelta J.L., Moreno S.,
RA   Armstrong J., Forsburg S.L., Cerutti L., Lowe T., McCombie W.R.,
RA   Paulsen I., Potashkin J., Shpakovski G.V., Ussery D., Barrell B.G.,
RA   Nurse P.;
RT   "The genome sequence of Schizosaccharomyces pombe.";
RL   Nature 415:871-880(2002).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 10-267.
RC   STRAIN=PR745;
RX   PubMed=9501991; DOI=10.1093/dnares/4.6.363;
RA   Yoshioka S., Kato K., Nakai K., Okayama H., Nojima H.;
RT   "Identification of open reading frames in Schizosaccharomyces pombe
RT   cDNAs.";
RL   DNA Res. 4:363-369(1997).
RN   [3]
RP   SUBCELLULAR LOCATION [LARGE SCALE ANALYSIS].
RX   PubMed=16823372; DOI=10.1038/nbt1222;
RA   Matsuyama A., Arai R., Yashiroda Y., Shirai A., Kamata A., Sekido S.,
RA   Kobayashi Y., Hashimoto A., Hamamoto M., Hiraoka Y., Horinouchi S.,
RA   Yoshida M.;
RT   "ORFeome cloning and global analysis of protein localization in the fission
RT   yeast Schizosaccharomyces pombe.";
RL   Nat. Biotechnol. 24:841-847(2006).
CC   -!- FUNCTION: The proteasome is a multicatalytic proteinase complex which
CC       is characterized by its ability to cleave peptides with Arg, Phe, Tyr,
CC       Leu, and Glu adjacent to the leaving group at neutral or slightly basic
CC       pH. The proteasome has an ATP-dependent proteolytic activity
CC       (Potential). {ECO:0000305}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Cleavage of peptide bonds with very broad specificity.;
CC         EC=3.4.25.1;
CC   -!- SUBUNIT: The 26S proteasome consists of a 20S proteasome core and two
CC       19S regulatory subunits. The 20S proteasome core is composed of 28
CC       subunits that are arranged in four stacked rings, resulting in a
CC       barrel-shaped structure. The two end rings are each formed by seven
CC       alpha subunits, and the two central rings are each formed by seven beta
CC       subunits. The catalytic chamber with the active sites is on the inside
CC       of the barrel (By similarity). {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|PROSITE-ProRule:PRU00809,
CC       ECO:0000269|PubMed:16823372}. Nucleus {ECO:0000269|PubMed:16823372}.
CC   -!- SIMILARITY: Belongs to the peptidase T1B family. {ECO:0000255|PROSITE-
CC       ProRule:PRU00809}.
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DR   EMBL; CU329670; CAA91242.1; -; Genomic_DNA.
DR   EMBL; AB000540; BAA19146.1; -; mRNA.
DR   PIR; T38282; S62498.
DR   RefSeq; NP_594544.1; NM_001019973.2.
DR   AlphaFoldDB; Q09841; -.
DR   SMR; Q09841; -.
DR   BioGRID; 278296; 7.
DR   STRING; 4896.SPAC23D3.07.1; -.
DR   MEROPS; T01.011; -.
DR   MaxQB; Q09841; -.
DR   PaxDb; Q09841; -.
DR   EnsemblFungi; SPAC23D3.07.1; SPAC23D3.07.1:pep; SPAC23D3.07.
DR   GeneID; 2541805; -.
DR   KEGG; spo:SPAC23D3.07; -.
DR   PomBase; SPAC23D3.07; pup1.
DR   VEuPathDB; FungiDB:SPAC23D3.07; -.
DR   eggNOG; KOG0173; Eukaryota.
DR   HOGENOM; CLU_035750_3_0_1; -.
DR   InParanoid; Q09841; -.
DR   OMA; VDKTGPH; -.
DR   PhylomeDB; Q09841; -.
DR   Reactome; R-SPO-1236978; Cross-presentation of soluble exogenous antigens (endosomes).
DR   Reactome; R-SPO-174113; SCF-beta-TrCP mediated degradation of Emi1.
DR   Reactome; R-SPO-350562; Regulation of ornithine decarboxylase (ODC).
DR   Reactome; R-SPO-382556; ABC-family proteins mediated transport.
DR   Reactome; R-SPO-5668541; TNFR2 non-canonical NF-kB pathway.
DR   Reactome; R-SPO-5689603; UCH proteinases.
DR   Reactome; R-SPO-5689880; Ub-specific processing proteases.
DR   Reactome; R-SPO-6798695; Neutrophil degranulation.
DR   Reactome; R-SPO-68949; Orc1 removal from chromatin.
DR   Reactome; R-SPO-69017; CDK-mediated phosphorylation and removal of Cdc6.
DR   Reactome; R-SPO-69601; Ubiquitin Mediated Degradation of Phosphorylated Cdc25A.
DR   Reactome; R-SPO-75815; Ubiquitin-dependent degradation of Cyclin D.
DR   Reactome; R-SPO-8854050; FBXL7 down-regulates AURKA during mitotic entry and in early mitosis.
DR   Reactome; R-SPO-8948751; Regulation of PTEN stability and activity.
DR   Reactome; R-SPO-8951664; Neddylation.
DR   Reactome; R-SPO-9755511; KEAP1-NFE2L2 pathway.
DR   Reactome; R-SPO-9762114; GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2.
DR   Reactome; R-SPO-983168; Antigen processing: Ubiquitination & Proteasome degradation.
DR   PRO; PR:Q09841; -.
DR   Proteomes; UP000002485; Chromosome I.
DR   GO; GO:0005829; C:cytosol; HDA:PomBase.
DR   GO; GO:0005635; C:nuclear envelope; HDA:PomBase.
DR   GO; GO:0005634; C:nucleus; HDA:PomBase.
DR   GO; GO:0005839; C:proteasome core complex; IBA:GO_Central.
DR   GO; GO:0019774; C:proteasome core complex, beta-subunit complex; IDA:PomBase.
DR   GO; GO:0004175; F:endopeptidase activity; IBA:GO_Central.
DR   GO; GO:0004298; F:threonine-type endopeptidase activity; IEA:UniProtKB-KW.
DR   GO; GO:0051306; P:mitotic sister chromatid separation; IC:PomBase.
DR   GO; GO:0045842; P:positive regulation of mitotic metaphase/anaphase transition; IEA:UniProt.
DR   GO; GO:0010498; P:proteasomal protein catabolic process; IBA:GO_Central.
DR   GO; GO:0043161; P:proteasome-mediated ubiquitin-dependent protein catabolic process; IC:PomBase.
DR   Gene3D; 3.60.20.10; -; 1.
DR   InterPro; IPR029055; Ntn_hydrolases_N.
DR   InterPro; IPR035216; Proteasome_beta7.
DR   InterPro; IPR024689; Proteasome_bsu_C.
DR   InterPro; IPR016050; Proteasome_bsu_CS.
DR   InterPro; IPR001353; Proteasome_sua/b.
DR   InterPro; IPR023333; Proteasome_suB-type.
DR   PANTHER; PTHR11599:SF42; PTHR11599:SF42; 1.
DR   Pfam; PF12465; Pr_beta_C; 1.
DR   Pfam; PF00227; Proteasome; 1.
DR   SUPFAM; SSF56235; SSF56235; 1.
DR   PROSITE; PS00854; PROTEASOME_BETA_1; 1.
DR   PROSITE; PS51476; PROTEASOME_BETA_2; 1.
PE   2: Evidence at transcript level;
KW   Cytoplasm; Hydrolase; Nucleus; Protease; Proteasome; Reference proteome;
KW   Threonine protease; Zymogen.
FT   PROPEP          1..35
FT                   /note="Removed in mature form"
FT                   /evidence="ECO:0000250"
FT                   /id="PRO_0000026655"
FT   CHAIN           36..267
FT                   /note="Probable proteasome subunit beta type-2"
FT                   /id="PRO_0000026656"
FT   ACT_SITE        36
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   267 AA;  29337 MW;  646764EBE1E3CFBF CRC64;
     MMGINERKGF DFEYYQRNLL LQEKGFPTPK ATSTGTTIVG VIAKDCIVLG ADTRATAGPI
     IADKNCKKLH LISPNIWCAG AGTAADTEFV TSMISSNIEL HSLYTNRKPR VVTALTMLKQ
     HLFRYQGHIG AYLVLGGYDC KGPHLFTIAA HGSSDKLPYV ALGSGSLAAI SVLETKYQPD
     LERHEAMELV KEAIEAGIFN DLGSGSNCDL VVIDEEKATP YRGYSKPNER ATKQSKYTYD
     RGTTAVLKED IYKFVTVQDL DEMQVDV