ID Q039T8_LACP3 Unreviewed; 217 AA.
AC Q039T8;
DT 14-NOV-2006, integrated into UniProtKB/TrEMBL.
DT 14-NOV-2006, sequence version 1.
DT 27-MAR-2024, entry version 117.
DE RecName: Full=Redox-sensing transcriptional repressor Rex {ECO:0000256|HAMAP-Rule:MF_01131};
GN Name=rex {ECO:0000256|HAMAP-Rule:MF_01131};
GN OrderedLocusNames=LSEI_1250 {ECO:0000313|EMBL:ABJ70034.1};
OS Lacticaseibacillus paracasei (strain ATCC 334 / BCRC 17002 / CCUG 31169 /
OS CIP 107868 / KCTC 3260 / NRRL B-441) (Lactobacillus paracasei).
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Lactobacillaceae;
OC Lacticaseibacillus.
OX NCBI_TaxID=321967 {ECO:0000313|EMBL:ABJ70034.1, ECO:0000313|Proteomes:UP000001651};
RN [1] {ECO:0000313|EMBL:ABJ70034.1, ECO:0000313|Proteomes:UP000001651}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 334 / BCRC 17002 / CCUG 31169 / CIP 107868 / KCTC 3260 /
RC NRRL B-441 {ECO:0000313|Proteomes:UP000001651};
RX PubMed=17030793; DOI=10.1073/pnas.0607117103;
RA Makarova K., Slesarev A., Wolf Y., Sorokin A., Mirkin B., Koonin E.,
RA Pavlov A., Pavlova N., Karamychev V., Polouchine N., Shakhova V.,
RA Grigoriev I., Lou Y., Rohksar D., Lucas S., Huang K., Goodstein D.M.,
RA Hawkins T., Plengvidhya V., Welker D., Hughes J., Goh Y., Benson A.,
RA Baldwin K., Lee J.H., Diaz-Muniz I., Dosti B., Smeianov V., Wechter W.,
RA Barabote R., Lorca G., Altermann E., Barrangou R., Ganesan B., Xie Y.,
RA Rawsthorne H., Tamir D., Parker C., Breidt F., Broadbent J., Hutkins R.,
RA O'Sullivan D., Steele J., Unlu G., Saier M., Klaenhammer T., Richardson P.,
RA Kozyavkin S., Weimer B., Mills D.;
RT "Comparative genomics of the lactic acid bacteria.";
RL Proc. Natl. Acad. Sci. U.S.A. 103:15611-15616(2006).
CC -!- FUNCTION: Modulates transcription in response to changes in cellular
CC NADH/NAD(+) redox state. {ECO:0000256|HAMAP-Rule:MF_01131}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01131}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_01131}.
CC -!- SIMILARITY: Belongs to the transcriptional regulatory Rex family.
CC {ECO:0000256|HAMAP-Rule:MF_01131}.
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DR EMBL; CP000423; ABJ70034.1; -; Genomic_DNA.
DR RefSeq; WP_003570094.1; NC_008526.1.
DR RefSeq; YP_806476.1; NC_008526.1.
DR AlphaFoldDB; Q039T8; -.
DR STRING; 321967.LSEI_1250; -.
DR PaxDb; 321967-LSEI_1250; -.
DR KEGG; lca:LSEI_1250; -.
DR PATRIC; fig|321967.11.peg.1224; -.
DR HOGENOM; CLU_061534_1_1_9; -.
DR Proteomes; UP000001651; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:UniProtKB-UniRule.
DR GO; GO:0045892; P:negative regulation of DNA-templated transcription; IEA:InterPro.
DR GO; GO:0051775; P:response to redox state; IEA:InterPro.
DR Gene3D; 3.40.50.720; NAD(P)-binding Rossmann-like Domain; 1.
DR Gene3D; 1.10.10.10; Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain; 1.
DR HAMAP; MF_01131; Rex; 1.
DR InterPro; IPR003781; CoA-bd.
DR InterPro; IPR036291; NAD(P)-bd_dom_sf.
DR InterPro; IPR009718; Rex_DNA-bd_C_dom.
DR InterPro; IPR022876; Tscrpt_rep_Rex.
DR InterPro; IPR036388; WH-like_DNA-bd_sf.
DR InterPro; IPR036390; WH_DNA-bd_sf.
DR PANTHER; PTHR35786; REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX; 1.
DR PANTHER; PTHR35786:SF1; REDOX-SENSING TRANSCRIPTIONAL REPRESSOR REX; 1.
DR Pfam; PF02629; CoA_binding; 1.
DR Pfam; PF06971; Put_DNA-bind_N; 1.
DR SMART; SM00881; CoA_binding; 1.
DR SUPFAM; SSF51735; NAD(P)-binding Rossmann-fold domains; 1.
DR SUPFAM; SSF46785; Winged helix' DNA-binding domain; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_01131};
KW DNA-binding {ECO:0000256|ARBA:ARBA00023125, ECO:0000256|HAMAP-
KW Rule:MF_01131};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_01131};
KW Reference proteome {ECO:0000313|Proteomes:UP000001651};
KW Repressor {ECO:0000256|ARBA:ARBA00022491, ECO:0000256|HAMAP-Rule:MF_01131};
KW Transcription {ECO:0000256|ARBA:ARBA00023163, ECO:0000256|HAMAP-
KW Rule:MF_01131};
KW Transcription regulation {ECO:0000256|ARBA:ARBA00023015, ECO:0000256|HAMAP-
KW Rule:MF_01131}.
FT DOMAIN 81..181
FT /note="CoA-binding"
FT /evidence="ECO:0000259|SMART:SM00881"
FT DNA_BIND 18..57
FT /note="H-T-H motif"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01131"
FT BINDING 92..97
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01131"
SQ SEQUENCE 217 AA; 23850 MW; 12F525174214A0BB CRC64;
MVVSKQALSQ ATIKRIPVYY RTVKDLQQTG EKRVRSDRLS KLVHIAPATI RRDFSNFGDL
GRSGYGYSVD LLAQVFGELL EVHSEEQMAL VGCGNLGRAL LTNNFRRNPD LSITMGFDTD
PQLIGTTIAG VPIYDLAALS EKLRPSMHTA IVCVPSSAQA AVVRQLEAQN VTAILTFAPK
PVPAKPTTTI RYIDLTSELQ ALLFVDHQKQ VKRVSQG
//
