ID A0A2N1A803_9GAMM Unreviewed; 356 AA.
AC A0A2N1A803;
DT 25-APR-2018, integrated into UniProtKB/TrEMBL.
DT 25-APR-2018, sequence version 1.
DT 27-MAR-2024, entry version 21.
DE RecName: Full=Sensory histidine kinase/phosphatase NtrB {ECO:0000256|ARBA:ARBA00039567};
DE EC=2.7.13.3 {ECO:0000256|ARBA:ARBA00012438};
DE AltName: Full=Nitrogen regulation protein NR(II) {ECO:0000256|ARBA:ARBA00042313};
DE AltName: Full=Nitrogen regulator II {ECO:0000256|ARBA:ARBA00043094};
GN ORFNames=CXF74_00630 {ECO:0000313|EMBL:PKG40859.1};
OS Psychromonas sp. Urea-02u-13.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Alteromonadales;
OC Psychromonadaceae; Psychromonas.
OX NCBI_TaxID=2058326 {ECO:0000313|EMBL:PKG40859.1, ECO:0000313|Proteomes:UP000233836};
RN [1] {ECO:0000313|EMBL:PKG40859.1, ECO:0000313|Proteomes:UP000233836}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Urea-02u-13 {ECO:0000313|EMBL:PKG40859.1,
RC ECO:0000313|Proteomes:UP000233836};
RA Collins E., Ducluzeau A.-L.;
RT "Pharmacopeia of the Arctic Ocean.";
RL Submitted (DEC-2017) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Member of the two-component regulatory system NtrB/NtrC,
CC which controls expression of the nitrogen-regulated (ntr) genes in
CC response to nitrogen limitation. Under conditions of nitrogen
CC limitation, NtrB autophosphorylates and transfers the phosphoryl group
CC to NtrC. In the presence of nitrogen, acts as a phosphatase that
CC dephosphorylates and inactivates NtrC. {ECO:0000256|ARBA:ARBA00037696}.
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 -!- 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:PKG40859.1}.
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; PJBZ01000035; PKG40859.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2N1A803; -.
DR OrthoDB; 9789238at2; -.
DR Proteomes; UP000233836; Unassembled WGS sequence.
DR GO; GO:0000155; F:phosphorelay sensor kinase activity; IEA:InterPro.
DR GO; GO:0009399; P:nitrogen fixation; IEA:UniProtKB-KW.
DR GO; GO:0006355; P:regulation of DNA-templated transcription; IEA:InterPro.
DR CDD; cd00082; HisKA; 1.
DR CDD; cd00130; PAS; 1.
DR Gene3D; 1.10.287.130; -; 1.
DR Gene3D; 3.30.565.10; Histidine kinase-like ATPase, C-terminal domain; 1.
DR Gene3D; 3.30.450.20; PAS domain; 1.
DR InterPro; IPR003594; HATPase_C.
DR InterPro; IPR036890; HATPase_C_sf.
DR InterPro; IPR005467; His_kinase_dom.
DR InterPro; IPR003661; HisK_dim/P.
DR InterPro; IPR036097; HisK_dim/P_sf.
DR InterPro; IPR000014; PAS.
DR InterPro; IPR013767; PAS_fold.
DR InterPro; IPR004358; Sig_transdc_His_kin-like_C.
DR PANTHER; PTHR43065; SENSOR HISTIDINE KINASE; 1.
DR PANTHER; PTHR43065:SF16; SENSORY HISTIDINE KINASE_PHOSPHATASE NTRB; 1.
DR Pfam; PF02518; HATPase_c; 1.
DR Pfam; PF00512; HisKA; 1.
DR Pfam; PF00989; PAS; 1.
DR PRINTS; PR00344; BCTRLSENSOR.
DR SMART; SM00387; HATPase_c; 1.
DR SMART; SM00388; HisKA; 1.
DR SMART; SM00091; PAS; 1.
DR SUPFAM; SSF55874; ATPase domain of HSP90 chaperone/DNA topoisomerase II/histidine kinase; 1.
DR SUPFAM; SSF47384; Homodimeric domain of signal transducing histidine kinase; 1.
DR PROSITE; PS50109; HIS_KIN; 1.
PE 4: Predicted;
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801};
KW Nitrogen fixation {ECO:0000256|ARBA:ARBA00023231};
KW Phosphoprotein {ECO:0000256|ARBA:ARBA00022553}.
FT DOMAIN 140..356
FT /note="Histidine kinase"
FT /evidence="ECO:0000259|PROSITE:PS50109"
SQ SEQUENCE 356 AA; 40011 MW; 2E55C0D17BDF2004 CRC64;
MLEHLPTDFP LAIIEEAHTA FVIIDESLNL TYANPASELL LSQSSQRLHQ QSLQQLANYY
HFNPIAIEQV FKNKGAFSES EITLLVETQP VLISLSASHL LYQENAYVII EMRGIEQQRK
ISQVHYQEHQ QKAAQDLVRG LAHEIKNPLG GLRGAAQLLE GELPSPELKE FTQIIIEQAD
RLSALVNRLL GPQKIGQWKT DNIHSVIEKV RKLVCLDLPD FINIKLDYDP SIPDFEMQSD
QLQQAFLNVL QNAVQALIPD LKQNAEITLR TRTAHQVTIN GLPQRLAVEI KIIDNGSGIP
NHLKDTLFYP MVTGKSDGTG LGLSIAQELI KQHHGRIECH SIAGHTEFSI YLPMIL
//
