ID   CLPP3_PROMA             Reviewed;         216 AA.
AC   Q7V9L6;
DT   07-JUN-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   03-AUG-2022, entry version 105.
DE   RecName: Full=ATP-dependent Clp protease proteolytic subunit 3 {ECO:0000255|HAMAP-Rule:MF_00444};
DE            EC=3.4.21.92 {ECO:0000255|HAMAP-Rule:MF_00444};
DE   AltName: Full=Endopeptidase Clp 3 {ECO:0000255|HAMAP-Rule:MF_00444};
GN   Name=clpP3 {ECO:0000255|HAMAP-Rule:MF_00444}; OrderedLocusNames=Pro_1816;
OS   Prochlorococcus marinus (strain SARG / CCMP1375 / SS120).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=167539;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SARG / CCMP1375 / SS120;
RX   PubMed=12917486; DOI=10.1073/pnas.1733211100;
RA   Dufresne A., Salanoubat M., Partensky F., Artiguenave F., Axmann I.M.,
RA   Barbe V., Duprat S., Galperin M.Y., Koonin E.V., Le Gall F., Makarova K.S.,
RA   Ostrowski M., Oztas S., Robert C., Rogozin I.B., Scanlan D.J.,
RA   Tandeau de Marsac N., Weissenbach J., Wincker P., Wolf Y.I., Hess W.R.;
RT   "Genome sequence of the cyanobacterium Prochlorococcus marinus SS120, a
RT   nearly minimal oxyphototrophic genome.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:10020-10025(2003).
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; AE017126; AAQ00860.1; -; Genomic_DNA.
DR   RefSeq; NP_876207.1; NC_005042.1.
DR   RefSeq; WP_011125965.1; NC_005042.1.
DR   AlphaFoldDB; Q7V9L6; -.
DR   SMR; Q7V9L6; -.
DR   STRING; 167539.Pro_1816; -.
DR   MEROPS; S14.001; -.
DR   EnsemblBacteria; AAQ00860; AAQ00860; Pro_1816.
DR   GeneID; 54201146; -.
DR   KEGG; pma:Pro_1816; -.
DR   PATRIC; fig|167539.5.peg.1918; -.
DR   eggNOG; COG0740; Bacteria.
DR   HOGENOM; CLU_058707_3_2_3; -.
DR   OMA; RDYWMKA; -.
DR   OrthoDB; 1728970at2; -.
DR   Proteomes; UP000001420; 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   PANTHER; PTHR10381; PTHR10381; 1.
DR   Pfam; PF00574; CLP_protease; 1.
DR   PRINTS; PR00127; CLPPROTEASEP.
DR   SUPFAM; SSF52096; SSF52096; 1.
DR   TIGRFAMs; TIGR00493; clpP; 1.
DR   PROSITE; PS00382; CLP_PROTEASE_HIS; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Hydrolase; Protease; Reference proteome; Serine protease.
FT   CHAIN           1..216
FT                   /note="ATP-dependent Clp protease proteolytic subunit 3"
FT                   /id="PRO_0000179619"
FT   ACT_SITE        120
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00444"
FT   ACT_SITE        145
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00444"
SQ   SEQUENCE   216 AA;  23593 MW;  D8131FDDAA33904A CRC64;
     MINTKCIHPV QNKWKGDLPC SGPGVLPTVI EQSGRGERAF DIYSRLLRER IIFLGTDVND
     QIADALVAQM LFLEAEDPEK DIQLYINSPG GSVTAGLAIY DTMQQVNPDI VTMCYGLAAS
     MGAFLLAGGS KGKRLALPNS RIMIHQPLGG AQGQAVEIEI QAKEILFLKE TLNNLLAEHT
     GQSLEKISED TDRDHFLSPQ EAVEYGLIDK VVNSLN