ID   CLPP_LACLA              Reviewed;         199 AA.
AC   Q9CHQ3;
DT   26-SEP-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2001, sequence version 1.
DT   03-AUG-2022, entry version 121.
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}; OrderedLocusNames=LL0673;
GN   ORFNames=L72391;
OS   Lactococcus lactis subsp. lactis (strain IL1403) (Streptococcus lactis).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Lactococcus.
OX   NCBI_TaxID=272623;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=IL1403;
RX   PubMed=11337471; DOI=10.1101/gr.gr-1697r;
RA   Bolotin A., Wincker P., Mauger S., Jaillon O., Malarme K., Weissenbach J.,
RA   Ehrlich S.D., Sorokin A.;
RT   "The complete genome sequence of the lactic acid bacterium Lactococcus
RT   lactis ssp. lactis IL1403.";
RL   Genome Res. 11:731-753(2001).
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; AE005176; AAK04771.1; -; Genomic_DNA.
DR   PIR; A86709; A86709.
DR   RefSeq; NP_266829.1; NC_002662.1.
DR   RefSeq; WP_003129593.1; NC_002662.1.
DR   AlphaFoldDB; Q9CHQ3; -.
DR   SMR; Q9CHQ3; -.
DR   STRING; 272623.L72391; -.
DR   MEROPS; S14.001; -.
DR   PaxDb; Q9CHQ3; -.
DR   PRIDE; Q9CHQ3; -.
DR   EnsemblBacteria; AAK04771; AAK04771; L72391.
DR   GeneID; 66441571; -.
DR   KEGG; lla:L72391; -.
DR   PATRIC; fig|272623.7.peg.720; -.
DR   eggNOG; COG0740; Bacteria.
DR   HOGENOM; CLU_058707_3_2_9; -.
DR   OMA; RDYWMKA; -.
DR   Proteomes; UP000002196; 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_0000179573"
FT   ACT_SITE        99
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00444"
FT   ACT_SITE        124
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00444"
SQ   SEQUENCE   199 AA;  22082 MW;  E2DD1283588DA08F CRC64;
     MGYLVPTVIE QSSRGERAYD IYSRLLKDRI IMLTGPVEDG MANSIIAQLL FLDAQDNTKD
     IYLYVNTPGG SVSAGLAIVD TMNFIKSDVQ TIVMGMAASM GTIIASSGTK GKRFMLPNAE
     YLIHQPMGGT GQGTQQTDMA IVAEQLLKTR KRLEQILADN SNRSLEQIHK DAERDHWMDA
     KETLEYGFID EIMENNSLK