ID Q3SRD4_NITWN Unreviewed; 808 AA.
AC Q3SRD4;
DT 11-OCT-2005, integrated into UniProtKB/TrEMBL.
DT 11-OCT-2005, sequence version 1.
DT 27-MAR-2024, entry version 148.
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 OrderedLocusNames=Nwi_1897 {ECO:0000313|EMBL:ABA05157.1};
OS Nitrobacter winogradskyi (strain ATCC 25391 / DSM 10237 / CIP 104748 /
OS NCIMB 11846 / Nb-255).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Nitrobacteraceae; Nitrobacter.
OX NCBI_TaxID=323098 {ECO:0000313|EMBL:ABA05157.1, ECO:0000313|Proteomes:UP000002531};
RN [1] {ECO:0000313|EMBL:ABA05157.1, ECO:0000313|Proteomes:UP000002531}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 25391 / DSM 10237 / CIP 104748 / NCIMB 11846 / Nb-255
RC {ECO:0000313|Proteomes:UP000002531};
RX PubMed=16517654; DOI=10.1128/AEM.72.3.2050-2063.2006;
RA Starkenburg S.R., Chain P.S., Sayavedra-Soto L.A., Hauser L., Land M.L.,
RA Larimer F.W., Malfatti S.A., Klotz M.G., Bottomley P.J., Arp D.J.,
RA Hickey W.J.;
RT "Genome sequence of the chemolithoautotrophic nitrite-oxidizing bacterium
RT Nitrobacter winogradskyi Nb-255.";
RL Appl. Environ. Microbiol. 72:2050-2063(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: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, ECO:0000256|RuleBase:RU000591}.
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DR EMBL; CP000115; ABA05157.1; -; Genomic_DNA.
DR RefSeq; WP_011315153.1; NC_007406.1.
DR AlphaFoldDB; Q3SRD4; -.
DR STRING; 323098.Nwi_1897; -.
DR MEROPS; S16.001; -.
DR KEGG; nwi:Nwi_1897; -.
DR eggNOG; COG0466; Bacteria.
DR HOGENOM; CLU_004109_4_3_5; -.
DR OrthoDB; 9803599at2; -.
DR Proteomes; UP000002531; 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; IPR008268; Peptidase_S16_AS.
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.
DR PROSITE; PS01046; LON_SER; 1.
PE 2: Evidence at transcript level;
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_01973}; Coiled coil {ECO:0000256|SAM:Coils};
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|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_01973};
KW Protease {ECO:0000256|ARBA:ARBA00022670, ECO:0000256|HAMAP-Rule:MF_01973};
KW Reference proteome {ECO:0000313|Proteomes:UP000002531};
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 18..209
FT /note="Lon N-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51787"
FT DOMAIN 597..778
FT /note="Lon proteolytic"
FT /evidence="ECO:0000259|PROSITE:PS51786"
FT COILED 214..277
FT /evidence="ECO:0000256|SAM:Coils"
FT ACT_SITE 684
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01973,
FT ECO:0000256|PIRSR:PIRSR001174-1"
FT ACT_SITE 727
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01973,
FT ECO:0000256|PIRSR:PIRSR001174-1"
FT BINDING 362..369
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 808 AA; 89114 MW; 7B1CEA9CB6CA933F CRC64;
MTASKPRPAI VHGEIHAYPV LPLRDIVVFP HMIVPLFVGR EKSIRALEEV MKNDGLIMLA
TQKNASDDDP APDSIYKIGT LASVLQLLKL PDGTVKVLVE GLERARVEAY SDRTDYYEAT
AVALADTDTN SVEAEALSRS VVSDFESYVK LNKKISPEVV GVVQAITDFA KLGDTVASHL
AAKIADRQGI LETLSVTARL EKVLGLMESE ISVLQVEKRI RSRVKRQMEK TQREYYLNEQ
MKAIQKELGD DEGRDELADL EEKIAKTKLS KEAREKAQHE LKKLRQMSPM SAEATVVRNY
LDWLLSIPWA KKSKVKKDLN AAQEVLDADH YGLEKVKDRI VEYLAVQSRA NKLTGPILCL
VGPPGVGKTS LGKSIARATG REFVRVSLGG VRDEAEIRGH RRTYIGSMPG KIIQSMRKAK
TSNPLFLLDE IDKMGADFRG DPSSALLEVL DPEQNSTFND HYLEVDYDLS NVMFLTTANT
LNIPGPLMDR MEIIRIAGYT ENEKVEIARK HLIPNALSKH GLDSKEWSIN DEALLLIIRR
YTREAGVRNL ERELSTLARK AVKELMLSKK KSVEVTEKVV EDFLGVPKYR FGEIETDDQV
GVVTGLAWTD VGGELLTIES VMMPGKGRMT VTGNLRDVMK ESISAAASYV RSRAITFGIE
PPLFERRDIH VHVPEGATPK DGPSAGVAMA TTIVSVLTGI PIRRDIAMTG EITLRGRVLP
IGGLKEKLLA AARGGIKTVL IPDENAKDLT EISEAIKGGL EIIPVARMDE VIAKALVRQP
KPIVWEEDTK LPVNPDAADE AAGGLTAH
//
