LON_RICBR
ID LON_RICBR Reviewed; 775 AA.
AC Q1RID6;
DT 20-MAR-2007, integrated into UniProtKB/Swiss-Prot.
DT 16-MAY-2006, sequence version 1.
DT 03-AUG-2022, entry version 105.
DE RecName: Full=Lon protease {ECO:0000255|HAMAP-Rule:MF_01973};
DE EC=3.4.21.53 {ECO:0000255|HAMAP-Rule:MF_01973};
DE AltName: Full=ATP-dependent protease La {ECO:0000255|HAMAP-Rule:MF_01973};
GN Name=lon {ECO:0000255|HAMAP-Rule:MF_01973}; OrderedLocusNames=RBE_0797;
OS Rickettsia bellii (strain RML369-C).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC Rickettsiaceae; Rickettsieae; Rickettsia; belli group.
OX NCBI_TaxID=336407;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=RML369-C;
RX PubMed=16703114; DOI=10.1371/journal.pgen.0020076;
RA Ogata H., La Scola B., Audic S., Renesto P., Blanc G., Robert C.,
RA Fournier P.-E., Claverie J.-M., Raoult D.;
RT "Genome sequence of Rickettsia bellii illuminates the role of amoebae in
RT gene exchanges between intracellular pathogens.";
RL PLoS Genet. 2:733-744(2006).
CC -!- FUNCTION: ATP-dependent serine protease that mediates the selective
CC degradation of mutant and abnormal proteins as well as certain short-
CC lived regulatory proteins. Required for cellular homeostasis and for
CC survival from DNA damage and developmental changes induced by stress.
CC Degrades polypeptides processively to yield small peptide fragments
CC that are 5 to 10 amino acids long. Binds to DNA in a double-stranded,
CC site-specific manner. {ECO:0000255|HAMAP-Rule:MF_01973}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Hydrolysis of proteins in presence of ATP.; EC=3.4.21.53;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01973};
CC -!- SUBUNIT: Homohexamer. Organized in a ring with a central cavity.
CC {ECO:0000255|HAMAP-Rule:MF_01973}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01973}.
CC -!- INDUCTION: By heat shock. {ECO:0000255|HAMAP-Rule:MF_01973}.
CC -!- SIMILARITY: Belongs to the peptidase S16 family. {ECO:0000255|HAMAP-
CC Rule:MF_01973}.
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DR EMBL; CP000087; ABE04878.1; -; Genomic_DNA.
DR RefSeq; WP_011477465.1; NC_007940.1.
DR AlphaFoldDB; Q1RID6; -.
DR SMR; Q1RID6; -.
DR STRING; 336407.RBE_0797; -.
DR MEROPS; S16.001; -.
DR PRIDE; Q1RID6; -.
DR EnsemblBacteria; ABE04878; ABE04878; RBE_0797.
DR KEGG; rbe:RBE_0797; -.
DR eggNOG; COG0466; Bacteria.
DR HOGENOM; CLU_004109_4_3_5; -.
DR OMA; GAWQVVD; -.
DR OrthoDB; 128102at2; -.
DR Proteomes; UP000001951; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016887; F:ATP hydrolysis activity; IEA:UniProtKB-UniRule.
DR GO; GO:0004176; F:ATP-dependent peptidase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0043565; F:sequence-specific DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004252; F:serine-type endopeptidase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0034605; P:cellular response to heat; IEA:UniProtKB-UniRule.
DR GO; GO:0006515; P:protein quality control for misfolded or incompletely synthesized proteins; IEA:UniProtKB-UniRule.
DR Gene3D; 2.30.130.40; -; 1.
DR Gene3D; 3.30.230.10; -; 1.
DR Gene3D; 3.40.50.300; -; 1.
DR HAMAP; MF_01973; lon_bact; 1.
DR InterPro; IPR003593; AAA+_ATPase.
DR InterPro; IPR003959; ATPase_AAA_core.
DR InterPro; IPR027543; Lon_bac.
DR InterPro; IPR004815; Lon_bac/euk-typ.
DR InterPro; IPR008269; Lon_proteolytic.
DR InterPro; IPR027065; Lon_Prtase.
DR InterPro; IPR003111; Lon_prtase_N.
DR InterPro; IPR046336; Lon_prtase_N_sf.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR008268; Peptidase_S16_AS.
DR InterPro; IPR015947; PUA-like_sf.
DR InterPro; IPR020568; Ribosomal_S5_D2-typ_fold.
DR InterPro; IPR014721; Ribosomal_S5_D2-typ_fold_subgr.
DR PANTHER; PTHR10046; PTHR10046; 1.
DR Pfam; PF00004; AAA; 1.
DR Pfam; PF05362; Lon_C; 1.
DR Pfam; PF02190; LON_substr_bdg; 1.
DR PIRSF; PIRSF001174; Lon_proteas; 1.
DR SMART; SM00382; AAA; 1.
DR SMART; SM00464; LON; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
DR SUPFAM; SSF54211; SSF54211; 1.
DR SUPFAM; SSF88697; SSF88697; 1.
DR TIGRFAMs; TIGR00763; lon; 1.
DR PROSITE; PS51787; LON_N; 1.
DR PROSITE; PS51786; LON_PROTEOLYTIC; 1.
DR PROSITE; PS01046; LON_SER; 1.
PE 3: Inferred from homology;
KW ATP-binding; Cytoplasm; Hydrolase; Nucleotide-binding; Protease;
KW Serine protease; Stress response.
FT CHAIN 1..775
FT /note="Lon protease"
FT /id="PRO_0000280891"
FT DOMAIN 6..205
FT /note="Lon N-terminal"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01123"
FT DOMAIN 592..773
FT /note="Lon proteolytic"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01122"
FT ACT_SITE 679
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01973"
FT ACT_SITE 722
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01973"
FT BINDING 356..363
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01973"
SQ SEQUENCE 775 AA; 86722 MW; 5F0AB73EE9EA39A8 CRC64;
MNKKSLPLMA LRDIVVFPGV IAPVFVGRQK SLHALSNTTL SEEDNSKYIL VTLQKKFDQE
NPNRNELYDV GILAKVIQIV KLPNTTAKIL VEAIARVKIS NIKGDEAFEA NYEIIPDEEI
FDANNMRSLV DNAVQLFAKY AGSDKKINAE IIETINKEIS ETSNFINIIN ILASHLITSL
EEKQRLLEET SPFKRISTII NILTSNIVNS ETEQALQQRV KKQIEKTQRD YYLHEQMKAI
QKELDEDKSD LAEFDKKIKA AKLSKEAREK AEAELKKLRT MNQMSAESGV TRNYLETLLS
LPWGKYDNSK IDINQAEKIL NRDHFGLEKV KERIIEYLAV LQRSSKIRGP ILCLIGPPGV
GKTSLIKSIA EGMGRKYTKF ALGGVRDEAE IRGHRKTYLG SMPGKILTQL KKVKTSNPVM
LLDEIDKMGS DFRGDPASAL LEVLDPEQNS HFVDHYLEVE YDLSNVIFIA TANSYNLPRA
LIDRMEIIDI SGYMEEEKIQ IAKNYLVPKQ LKMHKIKKDE ITISDDAILD LIRYYTKESG
VRSLEREIGA LTRKALKQIL ADKKVKHISV DSNNLEEFLG ARKYNFGLAE KNDQIGSTTG
LAYTEVGGEL LTIEALSFPG KGEIKTTGKL GDVMKESAMA AYSCFRSRAA DFGLKYEDYK
DFDVHIHVPA GAIPKDGPSA GCALFTTIVS LMTKIPVRRT VAMTGEVTLR GNVLPIGGLK
EKLLAASRGG IKTVLIPEEN VKDLKDIPPN IKSSLEIIPV SNIDQVLEHA LTKKT
