ID A0A0G9MX32_9SPHN Unreviewed; 796 AA.
AC A0A0G9MX32;
DT 16-SEP-2015, integrated into UniProtKB/TrEMBL.
DT 16-SEP-2015, sequence version 1.
DT 24-JAN-2024, entry version 44.
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 ORFNames=AAW00_02230 {ECO:0000313|EMBL:KLE35296.1};
OS Aurantiacibacter luteus.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Sphingomonadales;
OC Erythrobacteraceae; Aurantiacibacter.
OX NCBI_TaxID=1581420 {ECO:0000313|EMBL:KLE35296.1, ECO:0000313|Proteomes:UP000053464};
RN [1] {ECO:0000313|EMBL:KLE35296.1, ECO:0000313|Proteomes:UP000053464}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KA37 {ECO:0000313|EMBL:KLE35296.1,
RC ECO:0000313|Proteomes:UP000053464};
RA Zhuang L., Liu Y., Shao Z.;
RT "The draft genome sequence of Erythrobacter luteus KA37.";
RL Submitted (APR-2015) to the EMBL/GenBank/DDBJ databases.
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}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:KLE35296.1}.
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DR EMBL; LBHB01000001; KLE35296.1; -; Genomic_DNA.
DR RefSeq; WP_047002698.1; NZ_LBHB01000001.1.
DR AlphaFoldDB; A0A0G9MX32; -.
DR STRING; 1581420.AAW00_02230; -.
DR PATRIC; fig|1581420.6.peg.446; -.
DR OrthoDB; 9803599at2; -.
DR Proteomes; UP000053464; Unassembled WGS sequence.
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 DNA-binding {ECO:0000313|EMBL:KLE35296.1};
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:UP000053464};
KW Serine protease {ECO:0000256|ARBA:ARBA00022825, ECO:0000256|HAMAP-
KW Rule:MF_01973}; Stress response {ECO:0000256|HAMAP-Rule:MF_01973}.
FT DOMAIN 4..195
FT /note="Lon N-terminal"
FT /evidence="ECO:0000259|PROSITE:PS51787"
FT DOMAIN 584..765
FT /note="Lon proteolytic"
FT /evidence="ECO:0000259|PROSITE:PS51786"
FT REGION 773..796
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 778..796
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 671
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01973,
FT ECO:0000256|PIRSR:PIRSR001174-1"
FT ACT_SITE 714
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01973,
FT ECO:0000256|PIRSR:PIRSR001174-1"
FT BINDING 349..356
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 796 AA; 86945 MW; DCFD2C88F650A528 CRC64;
MNAYPLLPLR DIVVFPGMVV PLFVGRDKSV AALEAAMESE RDIFLVAQRD PATDDPVRED
VYDIGTVAQV QQMLKLPDGT VRVLVEGQSR AKISDWRVDG DFVLAQVAAL DETTASGSEV
AAMMRSALGQ FSDYAKASKK MPEDIESELA EIEDAGQLAD AIAANLTAKV DAKQQLLAET
DGLKRLETVY SLMESELSVQ QVERKIRGRV KRQMEKTQRE YYLNEQLKAI QSELGGGDGE
GDELTELAKK IEETKLSKEA REKAEGELKK LRGMQPMSAE ATVVRNYLDV LLGLPWGKKS
KLKKDIAQAQ QVLDADHYAL EKVKDRIVEY LAVQARTNKL KGPILCLVGP PGVGKTSLGK
SIAKATGREF IRQSLGGVRD EAEIRGHRRT YIGSLPGKIV SNLKKAGTSN PLFLLDEIDK
LGQDFRGDPA SALLEVLDPE QNNKFQDHYL ELDIDLSDIM FVTTANSLNL PQPLLDRMEI
IRLEGYTEDE KVEIAQRHLV AKTVSEHGLK DGEFTLTEEA LRDLIRYYTR EAGVRTLERE
IARLARKSLR QILEGKAESV TVTPENLSDF AGVRKFKHGV SEQEAQVGAV TGLAWTSVGG
ELLTIESVTT PGKGEVKTTG KLGEVMNESV AAAFSFVKAR APAYGIKPSL FQRKNVHIHL
PEGAVPKDGP SAGIGMVTSI VSTLTGIPVR PDVAMTGEVT LRGRVLAIGG LKEKLLAALR
GGIKTVLIPE ENEKDLAEIP ANVKEGLEII PVSHVDQVLE RALVEQPEAI EWTEADDIAS
QPQPQVVASP STGTAH
//