NIFA_AZOVI
ID NIFA_AZOVI Reviewed; 522 AA.
AC P09570;
DT 01-JUL-1989, integrated into UniProtKB/Swiss-Prot.
DT 01-JUL-1989, sequence version 1.
DT 03-AUG-2022, entry version 124.
DE RecName: Full=Nif-specific regulatory protein;
GN Name=nifA;
OS Azotobacter vinelandii.
OC Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC Pseudomonadaceae; Azotobacter.
OX NCBI_TaxID=354;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=ATCC 13705 / OP1 / DSM 366 / NCIMB 11614 / LMG 3878 / UW;
RX PubMed=2840552; DOI=10.1111/j.1365-2958.1988.tb00034.x;
RA Bennet L.T., Cannon F., Dean D.R.;
RT "Nucleotide sequence and mutagenesis of the nifA gene from Azotobacter
RT vinelandii.";
RL Mol. Microbiol. 2:315-321(1988).
RN [2]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 394-522.
RX PubMed=2450865; DOI=10.1128/jb.170.4.1475-1487.1988;
RA Joerger R.D., Bishop P.E.;
RT "Nucleotide sequence and genetic analysis of the nifB-nifQ region from
RT Azotobacter vinelandii.";
RL J. Bacteriol. 170:1475-1487(1988).
CC -!- FUNCTION: Required for activation of most nif operons, which are
CC directly involved in nitrogen fixation.
CC -!- SUBUNIT: Interacts with sigma-54.
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DR EMBL; Y00554; CAA68633.1; -; Genomic_DNA.
DR EMBL; J03411; AAA22147.1; -; Genomic_DNA.
DR PIR; S01927; S01927.
DR AlphaFoldDB; P09570; -.
DR SMR; P09570; -.
DR IntAct; P09570; 1.
DR PRIDE; P09570; -.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0003700; F:DNA-binding transcription factor activity; IEA:InterPro.
DR GO; GO:0043565; F:sequence-specific DNA binding; IEA:InterPro.
DR GO; GO:0009399; P:nitrogen fixation; IEA:UniProtKB-KW.
DR GO; GO:0000160; P:phosphorelay signal transduction system; IEA:UniProtKB-KW.
DR Gene3D; 3.30.450.40; -; 1.
DR Gene3D; 3.40.50.300; -; 1.
DR InterPro; IPR003593; AAA+_ATPase.
DR InterPro; IPR003018; GAF.
DR InterPro; IPR029016; GAF-like_dom_sf.
DR InterPro; IPR009057; Homeobox-like_sf.
DR InterPro; IPR002197; HTH_Fis.
DR InterPro; IPR010113; Nif-specific_regulatory_prot.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR002078; Sigma_54_int.
DR InterPro; IPR025662; Sigma_54_int_dom_ATP-bd_1.
DR InterPro; IPR025943; Sigma_54_int_dom_ATP-bd_2.
DR InterPro; IPR025944; Sigma_54_int_dom_CS.
DR Pfam; PF13185; GAF_2; 1.
DR Pfam; PF02954; HTH_8; 1.
DR Pfam; PF00158; Sigma54_activat; 1.
DR PRINTS; PR01590; HTHFIS.
DR SMART; SM00382; AAA; 1.
DR SMART; SM00065; GAF; 1.
DR SUPFAM; SSF46689; SSF46689; 1.
DR SUPFAM; SSF52540; SSF52540; 1.
DR TIGRFAMs; TIGR01817; nifA; 1.
DR PROSITE; PS00675; SIGMA54_INTERACT_1; 1.
DR PROSITE; PS00676; SIGMA54_INTERACT_2; 1.
DR PROSITE; PS00688; SIGMA54_INTERACT_3; 1.
DR PROSITE; PS50045; SIGMA54_INTERACT_4; 1.
PE 4: Predicted;
KW Activator; ATP-binding; DNA-binding; Nitrogen fixation; Nucleotide-binding;
KW Transcription; Transcription regulation; Two-component regulatory system.
FT CHAIN 1..522
FT /note="Nif-specific regulatory protein"
FT /id="PRO_0000081304"
FT DOMAIN 37..178
FT /note="GAF"
FT DOMAIN 211..439
FT /note="Sigma-54 factor interaction"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00193"
FT DNA_BIND 494..513
FT /note="H-T-H motif"
FT /evidence="ECO:0000250"
FT REGION 1..184
FT /note="A domain"
FT REGION 440..479
FT /note="Inter-domain linker"
FT REGION 480..522
FT /note="C-terminal DNA-binding domain"
FT BINDING 239..246
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00193"
FT BINDING 302..311
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00193"
SQ SEQUENCE 522 AA; 58123 MW; 9556A07EE8A7B209 CRC64;
MNATIPQRSA KQNPVELYDL QLQALASIAR TLSREQQIDE LLEQVLAVLH NDLGLLHGLV
TISDPEHGAL QIGAIHTDSE AVAQACEGVR YRSGEGVIGN VLKHGNSVVL GRISADPRFL
DRLALYDLEM PFIAVPIKNP EGNTIGVLAA QPDCRADEHM PARTRFLEIV ANLLAQTVRL
VVNIEDGREA ADERDELRRE VRGKYGFENM VVGHTPTMRR VFDQIRRVAK WNSTVLVLGE
SGTGKELIAS AIHYKSPRAH RPFVRLNCAA LPETLLESEL FGHEKGAFTG AVKQRKGRFE
QADGGTLFLD EIGEISPMFQ AKLLRVLQEG EFERVGGNQT VRVNVRIVAA TNRDLESEVE
KGKFREDLYY RLNVMAIRIP PLRERTADIP ELAEFLLGKI GRQQGRPLTV TDSAIRLLMS
HRWPGNVREL ENCLERSAIM SEDGTITRDV VSLTGVDNES PPLAAPLPEV NLADETLDDR
ERVIAALEQA GWVQAKAARL LGMTPRQIAY RIQTLNIHMR KI