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Database: UniProt
Entry: A0A495X587_9PSEU
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ID   A0A495X587_9PSEU        Unreviewed;       348 AA.
AC   A0A495X587;
DT   05-JUN-2019, integrated into UniProtKB/TrEMBL.
DT   05-JUN-2019, sequence version 1.
DT   24-JAN-2024, entry version 15.
DE   RecName: Full=Oxygen sensor histidine kinase NreB {ECO:0000256|ARBA:ARBA00017322};
DE            EC=2.7.13.3 {ECO:0000256|ARBA:ARBA00012438};
DE   AltName: Full=Nitrogen regulation protein B {ECO:0000256|ARBA:ARBA00030800};
GN   ORFNames=DFJ66_1872 {ECO:0000313|EMBL:RKT68679.1};
OS   Saccharothrix variisporea.
OC   Bacteria; Actinomycetota; Actinomycetes; Pseudonocardiales;
OC   Pseudonocardiaceae; Saccharothrix.
OX   NCBI_TaxID=543527 {ECO:0000313|EMBL:RKT68679.1, ECO:0000313|Proteomes:UP000272729};
RN   [1] {ECO:0000313|EMBL:RKT68679.1, ECO:0000313|Proteomes:UP000272729}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 43911 {ECO:0000313|EMBL:RKT68679.1,
RC   ECO:0000313|Proteomes:UP000272729};
RA   Klenk H.-P.;
RT   "Sequencing the genomes of 1000 actinobacteria strains.";
RL   Submitted (OCT-2018) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Member of the two-component regulatory system NreB/NreC
CC       involved in the control of dissimilatory nitrate/nitrite reduction in
CC       response to oxygen. NreB functions as a direct oxygen sensor histidine
CC       kinase which is autophosphorylated, in the absence of oxygen, probably
CC       at the conserved histidine residue, and transfers its phosphate group
CC       probably to a conserved aspartate residue of NreC. NreB/NreC activates
CC       the expression of the nitrate (narGHJI) and nitrite (nir) reductase
CC       operons, as well as the putative nitrate transporter gene narT.
CC       {ECO:0000256|ARBA:ARBA00024827}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + protein L-histidine = ADP + protein N-phospho-L-
CC         histidine.; EC=2.7.13.3; Evidence={ECO:0000256|ARBA:ARBA00000085};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000256|ARBA:ARBA00001966};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496}.
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:RKT68679.1}.
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DR   EMBL; RBXR01000001; RKT68679.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A495X587; -.
DR   OrthoDB; 227596at2; -.
DR   Proteomes; UP000272729; Unassembled WGS sequence.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0016020; C:membrane; IEA:UniProtKB-KW.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0000155; F:phosphorelay sensor kinase activity; IEA:InterPro.
DR   GO; GO:0046983; F:protein dimerization activity; IEA:InterPro.
DR   CDD; cd16917; HATPase_UhpB-NarQ-NarX-like; 1.
DR   Gene3D; 1.20.5.1930; -; 1.
DR   Gene3D; 3.30.565.10; Histidine kinase-like ATPase, C-terminal domain; 1.
DR   InterPro; IPR003594; HATPase_C.
DR   InterPro; IPR036890; HATPase_C_sf.
DR   InterPro; IPR005467; His_kinase_dom.
DR   InterPro; IPR004358; Sig_transdc_His_kin-like_C.
DR   InterPro; IPR011712; Sig_transdc_His_kin_sub3_dim/P.
DR   PANTHER; PTHR24421:SF10; NITRATE/NITRITE SENSOR PROTEIN NARQ; 1.
DR   PANTHER; PTHR24421; NITRATE/NITRITE SENSOR PROTEIN NARX-RELATED; 1.
DR   Pfam; PF02518; HATPase_c; 1.
DR   Pfam; PF07730; HisKA_3; 1.
DR   PRINTS; PR00344; BCTRLSENSOR.
DR   SMART; SM00387; HATPase_c; 1.
DR   SUPFAM; SSF55874; ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase; 1.
DR   PROSITE; PS50109; HIS_KIN; 1.
PE   4: Predicted;
KW   4Fe-4S {ECO:0000256|ARBA:ARBA00022485};
KW   Cytoplasm {ECO:0000256|ARBA:ARBA00022490};
KW   Iron {ECO:0000256|ARBA:ARBA00023004};
KW   Iron-sulfur {ECO:0000256|ARBA:ARBA00023014};
KW   Kinase {ECO:0000256|ARBA:ARBA00022777, ECO:0000313|EMBL:RKT68679.1};
KW   Membrane {ECO:0000256|SAM:Phobius};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022485};
KW   Reference proteome {ECO:0000313|Proteomes:UP000272729};
KW   Transferase {ECO:0000256|ARBA:ARBA00022679};
KW   Transmembrane {ECO:0000256|SAM:Phobius};
KW   Transmembrane helix {ECO:0000256|SAM:Phobius};
KW   Two-component regulatory system {ECO:0000256|ARBA:ARBA00023012}.
FT   TRANSMEM        32..48
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        98..118
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   TRANSMEM        130..148
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|SAM:Phobius"
FT   DOMAIN          265..348
FT                   /note="Histidine kinase"
FT                   /evidence="ECO:0000259|PROSITE:PS50109"
SQ   SEQUENCE   348 AA;  36604 MW;  E47B74754BA842CA CRC64;
     MRPVAWLSPL LYGAVLLAGG YAGLAGLGET RFGWFVGGLV ALVVLDLAEP RYARPVPFLV
     VRAALVVLVA ASDGSGMARV LLLLLPFGAY FAFGRVVAVV LGVGCVGLVV VAFGVTAPGW
     THDVERVSDL LMFAVGLVLT LAMAAVAVEE QRGRVRLAEL SAAAERNRLA RDVHDGLGHH
     LTAVSVLLEK ASAFRELDPS VADQALDDAR ESARRALEDV RRSVRALREP FRLSSALAEL
     AQGLKVDVEC AGDENGYDPA VLLAVYRAAQ EGITNALRHA DARTVSVRVH CGRSGAELVV
     ADDGRGFSAA EEGFGLSGMR ERVAAVGGAV DVRSAPGQGT RLTVRVPR
//
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