ID   A0A2N3YI02_9MICO        Unreviewed;       221 AA.
AC   A0A2N3YI02;
DT   25-APR-2018, integrated into UniProtKB/TrEMBL.
DT   25-APR-2018, sequence version 1.
DT   27-MAR-2024, entry version 18.
DE   RecName: Full=Redox-sensing transcriptional repressor Rex {ECO:0000256|HAMAP-Rule:MF_01131};
GN   Name=rex {ECO:0000256|HAMAP-Rule:MF_01131};
GN   ORFNames=ATL31_1259 {ECO:0000313|EMBL:PKW26448.1};
OS   Phycicoccus duodecadis.
OC   Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Intrasporangiaceae;
OC   Phycicoccus.
OX   NCBI_TaxID=173053 {ECO:0000313|EMBL:PKW26448.1, ECO:0000313|Proteomes:UP000233781};
RN   [1] {ECO:0000313|EMBL:PKW26448.1, ECO:0000313|Proteomes:UP000233781}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 12806 {ECO:0000313|EMBL:PKW26448.1,
RC   ECO:0000313|Proteomes:UP000233781};
RA   Klenk H.-P.;
RT   "Sequencing the genomes of 1000 Actinobacteria strains.";
RL   Submitted (DEC-2017) to the EMBL/GenBank/DDBJ databases.
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}.
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:PKW26448.1}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; PJNE01000001; PKW26448.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A2N3YI02; -.
DR   Proteomes; UP000233781; Unassembled WGS sequence.
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}; NAD {ECO:0000256|HAMAP-Rule:MF_01131};
KW   Reference proteome {ECO:0000313|Proteomes:UP000233781};
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          84..185
FT                   /note="CoA-binding"
FT                   /evidence="ECO:0000259|SMART:SM00881"
FT   DNA_BIND        21..60
FT                   /note="H-T-H motif"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01131"
FT   BINDING         95..100
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_01131"
SQ   SEQUENCE   221 AA;  22824 MW;  26F1255810C2C45D CRC64;
     MSTAAAARRD VPDAAVARLP GYLRALTALA AAGTASVSSE ELAAGAGVSS AMLRKDLSHL
     GSYGVRGVGY DVEHLASEIA AALGLTQDWP VAIVGMGNLG RALAAYRGFA ERGFRVIALL
     DHDERIVGEE VAGCPVRPMS ALPELVHEQG LAIGVIATPP DGAQVACDLL VEAGVRSVLN
     FASVVLTVPD DVTVRRVDLS TELQILAFHG HRSAVAEAVA R
//