ID C7R3H4_JONDD Unreviewed; 241 AA.
AC C7R3H4;
DT 13-OCT-2009, integrated into UniProtKB/TrEMBL.
DT 13-OCT-2009, sequence version 1.
DT 27-MAR-2024, entry version 90.
DE RecName: Full=LexA repressor {ECO:0000256|HAMAP-Rule:MF_00015};
DE EC=3.4.21.88 {ECO:0000256|HAMAP-Rule:MF_00015};
GN Name=lexA {ECO:0000256|HAMAP-Rule:MF_00015};
GN OrderedLocusNames=Jden_1054 {ECO:0000313|EMBL:ACV08710.1};
OS Jonesia denitrificans (strain ATCC 14870 / DSM 20603 / BCRC 15368 / CIP
OS 55.134 / JCM 11481 / NBRC 15587 / NCTC 10816 / Prevot 55134) (Listeria
OS denitrificans).
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Jonesiaceae;
OC Jonesia.
OX NCBI_TaxID=471856 {ECO:0000313|EMBL:ACV08710.1, ECO:0000313|Proteomes:UP000000628};
RN [1] {ECO:0000313|EMBL:ACV08710.1, ECO:0000313|Proteomes:UP000000628}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 14870 / DSM 20603 / BCRC 15368 / CIP 55.134 / JCM 11481 /
RC NBRC 15587 / NCTC 10816 / Prevot 55134
RC {ECO:0000313|Proteomes:UP000000628};
RX PubMed=21304666; DOI=10.4056/sigs.41646;
RA Pukall R., Gehrich-Schroter G., Lapidus A., Nolan M., Glavina Del Rio T.,
RA Lucas S., Chen F., Tice H., Pitluck S., Cheng J.F., Copeland A.,
RA Saunders E., Brettin T., Detter J.C., Bruce D., Goodwin L., Pati A.,
RA Ivanova N., Mavromatis K., Ovchinnikova G., Chen A., Palaniappan K.,
RA Land M., Hauser L., Chang Y.J., Jeffries C.D., Chain P., Goker M.,
RA Bristow J., Eisen J.A., Markowitz V., Hugenholtz P., Kyrpides N.C.,
RA Klenk H.P., Han C.;
RT "Complete genome sequence of Jonesia denitrificans type strain (Prevot
RT 55134).";
RL Stand. Genomic Sci. 1:262-269(2009).
CC -!- FUNCTION: Represses a number of genes involved in the response to DNA
CC damage (SOS response), including recA and lexA. In the presence of
CC single-stranded DNA, RecA interacts with LexA causing an autocatalytic
CC cleavage which disrupts the DNA-binding part of LexA, leading to
CC derepression of the SOS regulon and eventually DNA repair.
CC {ECO:0000256|HAMAP-Rule:MF_00015}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Hydrolysis of Ala-|-Gly bond in repressor LexA.; EC=3.4.21.88;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_00015};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00015}.
CC -!- SIMILARITY: Belongs to the peptidase S24 family.
CC {ECO:0000256|ARBA:ARBA00007484, ECO:0000256|HAMAP-Rule:MF_00015,
CC ECO:0000256|RuleBase:RU003991}.
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DR EMBL; CP001706; ACV08710.1; -; Genomic_DNA.
DR RefSeq; WP_015771338.1; NC_013174.1.
DR AlphaFoldDB; C7R3H4; -.
DR STRING; 471856.Jden_1054; -.
DR MEROPS; S24.001; -.
DR KEGG; jde:Jden_1054; -.
DR eggNOG; COG1974; Bacteria.
DR HOGENOM; CLU_066192_45_0_11; -.
DR OrthoDB; 9802364at2; -.
DR Proteomes; UP000000628; Chromosome.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004252; F:serine-type endopeptidase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006281; P:DNA repair; IEA:UniProtKB-UniRule.
DR GO; GO:0006260; P:DNA replication; IEA:UniProtKB-UniRule.
DR GO; GO:0045892; P:negative regulation of DNA-templated transcription; IEA:UniProtKB-UniRule.
DR GO; GO:0006508; P:proteolysis; IEA:InterPro.
DR GO; GO:0009432; P:SOS response; IEA:UniProtKB-UniRule.
DR CDD; cd00090; HTH_ARSR; 1.
DR CDD; cd06529; S24_LexA-like; 1.
DR Gene3D; 2.10.109.10; Umud Fragment, subunit A; 1.
DR Gene3D; 1.10.10.10; Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain; 1.
DR HAMAP; MF_00015; LexA; 1.
DR InterPro; IPR011991; ArsR-like_HTH.
DR InterPro; IPR006200; LexA.
DR InterPro; IPR039418; LexA-like.
DR InterPro; IPR036286; LexA/Signal_pep-like_sf.
DR InterPro; IPR006199; LexA_DNA-bd_dom.
DR InterPro; IPR006197; Peptidase_S24_LexA.
DR InterPro; IPR015927; Peptidase_S24_S26A/B/C.
DR InterPro; IPR036388; WH-like_DNA-bd_sf.
DR InterPro; IPR036390; WH_DNA-bd_sf.
DR NCBIfam; TIGR00498; lexA; 1.
DR PANTHER; PTHR33516; LEXA REPRESSOR; 1.
DR PANTHER; PTHR33516:SF2; LEXA REPRESSOR; 1.
DR Pfam; PF01726; LexA_DNA_bind; 1.
DR Pfam; PF00717; Peptidase_S24; 1.
DR PRINTS; PR00726; LEXASERPTASE.
DR SUPFAM; SSF51306; LexA/Signal peptidase; 1.
DR SUPFAM; SSF46785; Winged helix' DNA-binding domain; 1.
PE 3: Inferred from homology;
KW Autocatalytic cleavage {ECO:0000256|ARBA:ARBA00022813, ECO:0000256|HAMAP-
KW Rule:MF_00015};
KW DNA damage {ECO:0000256|ARBA:ARBA00022763, ECO:0000256|HAMAP-
KW Rule:MF_00015};
KW DNA repair {ECO:0000256|ARBA:ARBA00023204, ECO:0000256|HAMAP-
KW Rule:MF_00015};
KW DNA replication {ECO:0000256|ARBA:ARBA00022705, ECO:0000256|HAMAP-
KW Rule:MF_00015};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|HAMAP-
KW Rule:MF_00015};
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_00015};
KW Reference proteome {ECO:0000313|Proteomes:UP000000628};
KW Repressor {ECO:0000256|ARBA:ARBA00022491, ECO:0000256|HAMAP-Rule:MF_00015};
KW SOS response {ECO:0000256|ARBA:ARBA00023236, ECO:0000256|HAMAP-
KW Rule:MF_00015};
KW Transcription {ECO:0000256|ARBA:ARBA00023163, ECO:0000256|HAMAP-
KW Rule:MF_00015};
KW Transcription regulation {ECO:0000256|ARBA:ARBA00023015, ECO:0000256|HAMAP-
KW Rule:MF_00015}.
FT DOMAIN 13..76
FT /note="LexA repressor DNA-binding"
FT /evidence="ECO:0000259|Pfam:PF01726"
FT DOMAIN 123..235
FT /note="Peptidase S24/S26A/S26B/S26C"
FT /evidence="ECO:0000259|Pfam:PF00717"
FT DNA_BIND 39..59
FT /note="H-T-H motif"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00015"
FT REGION 72..102
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 85..102
FT /note="Polar residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT ACT_SITE 165
FT /note="For autocatalytic cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00015"
FT ACT_SITE 202
FT /note="For autocatalytic cleavage activity"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00015"
FT SITE 130..131
FT /note="Cleavage; by autolysis"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00015"
SQ SEQUENCE 241 AA; 26388 MW; 5498328D593C6891 CRC64;
MTEQSTPQHL SDAPLTSRQR AVLACITQSL KDRGYPPSMR EIGREVGLTS PSSVKHQLKV
LEERGFVRRD PNRPRAIEVI PTPREKDTSS PSPDPGLHHS SRNTENVVMI PHGSRTSDLR
PVPLVGRIAA GAPILADQDI EDVFTLPRQL VGDGELYMLR VSGESMVDAA ICDGDFVVVR
RQGVAENGEI VAAMIDGEAT VKTLKLKDGH RWLMPHNPLY DPILGDDAEI LGKVVSVIRA
M
//
