ID C1DAY9_LARHH Unreviewed; 806 AA.
AC C1DAY9;
DT 26-MAY-2009, integrated into UniProtKB/TrEMBL.
DT 26-MAY-2009, sequence version 1.
DT 27-MAR-2024, entry version 100.
DE RecName: Full=Lon protease {ECO:0000256|HAMAP-Rule:MF_01973, ECO:0000256|PIRNR:PIRNR001174};
DE EC=3.4.21.53 {ECO:0000256|HAMAP-Rule:MF_01973, ECO:0000256|PIRNR:PIRNR001174};
DE AltName: Full=ATP-dependent protease La {ECO:0000256|HAMAP-Rule:MF_01973};
GN Name=lon {ECO:0000256|HAMAP-Rule:MF_01973,
GN ECO:0000313|EMBL:ACO75328.1};
GN OrderedLocusNames=LHK_02346 {ECO:0000313|EMBL:ACO75328.1};
OS Laribacter hongkongensis (strain HLHK9).
OC Bacteria; Pseudomonadota; Betaproteobacteria; Neisseriales;
OC Aquaspirillaceae; Laribacter.
OX NCBI_TaxID=557598 {ECO:0000313|EMBL:ACO75328.1, ECO:0000313|Proteomes:UP000002010};
RN [1] {ECO:0000313|EMBL:ACO75328.1, ECO:0000313|Proteomes:UP000002010}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HLHK9 {ECO:0000313|EMBL:ACO75328.1,
RC ECO:0000313|Proteomes:UP000002010};
RX PubMed=19283063; DOI=10.1371/journal.pgen.1000416;
RA Woo P.C., Lau S.K., Tse H., Teng J.L., Curreem S.O., Tsang A.K., Fan R.Y.,
RA Wong G.K., Huang Y., Loman N.J., Snyder L.A., Cai J.J., Huang J.D., Mak W.,
RA Pallen M.J., Lok S., Yuen K.Y.;
RT "The complete genome and proteome of Laribacter hongkongensis reveal
RT potential mechanisms for adaptations to different temperatures and
RT habitats.";
RL PLoS Genet. 5:E1000416-E1000416(2009).
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:0000256|HAMAP-Rule:MF_01973}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Hydrolysis of proteins in presence of ATP.; EC=3.4.21.53;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01973,
CC ECO:0000256|PIRNR:PIRNR001174, ECO:0000256|PROSITE-ProRule:PRU01122};
CC -!- SUBUNIT: Homohexamer. Organized in a ring with a central cavity.
CC {ECO:0000256|HAMAP-Rule:MF_01973, ECO:0000256|PIRNR:PIRNR001174}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496,
CC ECO:0000256|HAMAP-Rule:MF_01973, ECO:0000256|PIRNR:PIRNR001174}.
CC -!- INDUCTION: By heat shock. {ECO:0000256|HAMAP-Rule:MF_01973}.
CC -!- SIMILARITY: Belongs to the peptidase S16 family. {ECO:0000256|HAMAP-
CC Rule:MF_01973, ECO:0000256|PIRNR:PIRNR001174, ECO:0000256|PROSITE-
CC ProRule:PRU01122}.
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DR EMBL; CP001154; ACO75328.1; -; Genomic_DNA.
DR RefSeq; WP_012697814.1; NC_012559.1.
DR AlphaFoldDB; C1DAY9; -.
DR STRING; 557598.LHK_02346; -.
DR MEROPS; S16.001; -.
DR GeneID; 75110002; -.
DR KEGG; lhk:LHK_02346; -.
DR eggNOG; COG0466; Bacteria.
DR HOGENOM; CLU_004109_4_3_4; -.
DR Proteomes; UP000002010; 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 CDD; cd19500; RecA-like_Lon; 1.
DR Gene3D; 1.10.8.60; -; 1.
DR Gene3D; 1.20.5.5270; -; 1.
DR Gene3D; 1.20.58.1480; -; 1.
DR Gene3D; 3.30.230.10; -; 1.
DR Gene3D; 2.30.130.40; LON domain-like; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 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; IPR015947; PUA-like_sf.
DR InterPro; IPR020568; Ribosomal_Su5_D2-typ_SF.
DR InterPro; IPR014721; Ribsml_uS5_D2-typ_fold_subgr.
DR NCBIfam; TIGR00763; lon; 1.
DR PANTHER; PTHR10046; ATP DEPENDENT LON PROTEASE FAMILY MEMBER; 1.
DR PANTHER; PTHR10046:SF56; LON PROTEASE; 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 PRINTS; PR00830; ENDOLAPTASE.
DR SMART; SM00382; AAA; 1.
DR SMART; SM00464; LON; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR SUPFAM; SSF88697; PUA domain-like; 1.
DR SUPFAM; SSF54211; Ribosomal protein S5 domain 2-like; 1.
DR PROSITE; PS51787; LON_N; 1.
DR PROSITE; PS51786; LON_PROTEOLYTIC; 1.
PE 2: Evidence at transcript level;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_01973};
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01973, ECO:0000256|PIRNR:PIRNR001174};
KW Hydrolase {ECO:0000256|HAMAP-Rule:MF_01973, ECO:0000256|PIRNR:PIRNR001174};
KW Nucleotide-binding {ECO:0000256|HAMAP-Rule:MF_01973,
KW ECO:0000256|PIRNR:PIRNR001174};
KW Protease {ECO:0000256|ARBA:ARBA00022670, ECO:0000256|HAMAP-Rule:MF_01973};
KW Reference proteome {ECO:0000313|Proteomes:UP000002010};
KW Serine protease {ECO:0000256|ARBA:ARBA00022825, ECO:0000256|HAMAP-
KW Rule:MF_01973};
KW Stress response {ECO:0000256|ARBA:ARBA00023016, ECO:0000256|HAMAP-
KW Rule:MF_01973}.
FT DOMAIN 13..204
FT /note="Lon N-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51787"
FT DOMAIN 596..777
FT /note="Lon proteolytic"
FT /evidence="ECO:0000259|PROSITE:PS51786"
FT REGION 779..806
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 683
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01973,
FT ECO:0000256|PIRSR:PIRSR001174-1"
FT ACT_SITE 726
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01973,
FT ECO:0000256|PIRSR:PIRSR001174-1"
FT BINDING 357..364
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01973,
FT ECO:0000256|PIRSR:PIRSR001174-2"
SQ SEQUENCE 806 AA; 88845 MW; 715170A48E305FAC CRC64;
MSQSDSPQTA TPIPLLPLRD VVVFPHMVIP LFVGRPKSIK ALERAMAEDK QILLVAQKSA
VKDEPAIDDL YAVGTLASVL QMLKLPDGTV KVLVEGKQRA HVQGVTEDDG FFMADAGLVV
AEPANDNELE AMRRTLLTQF EQYVKLSKKI APEVLATLSG IENASRLADT IAAYLPLKLE
QRQEMLEMLD TGRRMERLLA QIESEIDILQ VEKRIRGRVK RQMEKSQREY YLNEQVKAIQ
KELGEEDESA EFDELEKKIK AAGMSKEGKD KALSELKKLR MMSPQSAEAT VVRNYIDTLL
SLPWKKKTRI STDVAAAETI LDEDHFGLEK VKERILEYLA VQGRVEKLKG PILCLVGPPG
VGKTSLGQSI ARATGRKYVR MALGGVRDEA EIRGHRRTYI GSMPGKILQS MAKVGVKNPL
FLLDEVDKLG ADFRGDPSAA LLEVLDPEQN HAFSDHYAEV DFDLSDVMFV ATANSLNIPQ
ALLDRMEIIR LSGYTEDEKV AIAEKYLLPK EIKANGLKED EIAVQESALR DIVRYYTREA
GVRSLDREIA KICRKTVKQN QGKKADSKQA RTTVNARNLD KFLGVQKFEY GRAEAHNQVG
QVTGLAWTEV GGELLTIEAV SLPGKGNIIR TGQLGEVMQE SITAAMSVVR SRAKSLGIKP
DFYEKNDLHI HLPEGATPKD GPSAGIGIVT AMTSALTGIP VRADVAMTGE ITLRGEVLPI
GGLKEKLLAA HRGGIKHVLI PQGNVKDLAE IPTNIKRSLE IHSVKWIEQV FELALEQQPE
PLPDNDDIGT ISAKAEPGAE SSLTKH
//
