ID   CLPP_RIPO1              Reviewed;         199 AA.
AC   Q93AD7; B7JZS7;
DT   22-AUG-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   03-AUG-2022, entry version 100.
DE   RecName: Full=ATP-dependent Clp protease proteolytic subunit {ECO:0000255|HAMAP-Rule:MF_00444};
DE            EC=3.4.21.92 {ECO:0000255|HAMAP-Rule:MF_00444};
DE   AltName: Full=Endopeptidase Clp {ECO:0000255|HAMAP-Rule:MF_00444};
GN   Name=clpP {ECO:0000255|HAMAP-Rule:MF_00444};
GN   OrderedLocusNames=PCC8801_0943;
OS   Rippkaea orientalis (strain PCC 8801) (Cyanothece sp. (strain PCC 8801)).
OC   Bacteria; Cyanobacteria; Oscillatoriophycideae; Chroococcales;
OC   Aphanothecaceae; Rippkaea; Rippkaea orientalis.
OX   NCBI_TaxID=41431;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Lin R.-F., Chen L.-R., Huang T.-C.;
RL   Submitted (SEP-2001) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 8801;
RX   PubMed=21972240; DOI=10.1128/mbio.00214-11;
RA   Bandyopadhyay A., Elvitigala T., Welsh E., Stockel J., Liberton M., Min H.,
RA   Sherman L.A., Pakrasi H.B.;
RT   "Novel metabolic attributes of the genus Cyanothece, comprising a group of
RT   unicellular nitrogen-fixing Cyanobacteria.";
RL   MBio 2:E214-E214(2011).
CC   -!- FUNCTION: Cleaves peptides in various proteins in a process that
CC       requires ATP hydrolysis. Has a chymotrypsin-like activity. Plays a
CC       major role in the degradation of misfolded proteins.
CC       {ECO:0000255|HAMAP-Rule:MF_00444}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Hydrolysis of proteins to small peptides in the presence of
CC         ATP and magnesium. alpha-casein is the usual test substrate. In the
CC         absence of ATP, only oligopeptides shorter than five residues are
CC         hydrolyzed (such as succinyl-Leu-Tyr-|-NHMec, and Leu-Tyr-Leu-|-Tyr-
CC         Trp, in which cleavage of the -Tyr-|-Leu- and -Tyr-|-Trp bonds also
CC         occurs).; EC=3.4.21.92; Evidence={ECO:0000255|HAMAP-Rule:MF_00444};
CC   -!- SUBUNIT: Fourteen ClpP subunits assemble into 2 heptameric rings which
CC       stack back to back to give a disk-like structure with a central cavity,
CC       resembling the structure of eukaryotic proteasomes. {ECO:0000255|HAMAP-
CC       Rule:MF_00444}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00444}.
CC   -!- SIMILARITY: Belongs to the peptidase S14 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00444}.
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DR   EMBL; AF423175; AAL23931.1; -; Genomic_DNA.
DR   EMBL; CP001287; ACK65020.1; -; Genomic_DNA.
DR   RefSeq; WP_012594295.1; NC_011726.1.
DR   AlphaFoldDB; Q93AD7; -.
DR   SMR; Q93AD7; -.
DR   STRING; 41431.PCC8801_0943; -.
DR   MEROPS; S14.001; -.
DR   EnsemblBacteria; ACK65020; ACK65020; PCC8801_0943.
DR   KEGG; cyp:PCC8801_0943; -.
DR   eggNOG; COG0740; Bacteria.
DR   HOGENOM; CLU_058707_3_2_3; -.
DR   OMA; GFKRQDP; -.
DR   OrthoDB; 1728970at2; -.
DR   Proteomes; UP000008204; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004176; F:ATP-dependent peptidase activity; IEA:InterPro.
DR   GO; GO:0004252; F:serine-type endopeptidase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006508; P:proteolysis; IEA:UniProtKB-UniRule.
DR   CDD; cd07017; S14_ClpP_2; 1.
DR   HAMAP; MF_00444; ClpP; 1.
DR   InterPro; IPR001907; ClpP.
DR   InterPro; IPR029045; ClpP/crotonase-like_dom_sf.
DR   InterPro; IPR023562; ClpP/TepA.
DR   InterPro; IPR033135; ClpP_His_AS.
DR   InterPro; IPR018215; ClpP_Ser_AS.
DR   PANTHER; PTHR10381; PTHR10381; 1.
DR   Pfam; PF00574; CLP_protease; 1.
DR   PRINTS; PR00127; CLPPROTEASEP.
DR   SUPFAM; SSF52096; SSF52096; 1.
DR   PROSITE; PS00382; CLP_PROTEASE_HIS; 1.
DR   PROSITE; PS00381; CLP_PROTEASE_SER; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Hydrolase; Protease; Reference proteome; Serine protease.
FT   CHAIN           1..199
FT                   /note="ATP-dependent Clp protease proteolytic subunit"
FT                   /id="PRO_0000179690"
FT   ACT_SITE        101
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00444"
FT   ACT_SITE        126
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00444"
SQ   SEQUENCE   199 AA;  22192 MW;  50559446BA842FFB CRC64;
     MPLGVPSVPY RLPGSQYERW IDIYTRLSQE RIIFLGQEVT DGLANRIVAF LLYLDSEDPG
     KPIYLYINSP GGSVTAGMAI YDTMQYIKSD VITICVGLAA SMGAFLLASG TPGKRLALPH
     ARIMIHQPMG GTGRRQATDI QIEANEILRI RQQLNEILAH KTGQTIEKIQ KDTDRDYYMS
     AEEAQAYGLI DKVIEDRTI