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Database: UniProt
Entry: P08623
LinkDB: P08623
Original site: P08623 
ID   RP54_AZOVI              Reviewed;         502 AA.
AC   P08623;
DT   01-AUG-1988, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1988, sequence version 1.
DT   19-FEB-2014, entry version 67.
DE   RecName: Full=RNA polymerase sigma-54 factor;
GN   Name=rpoN; Synonyms=ntrA;
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 / NCIB 11614 / LMG 3878 / UW;
RX   PubMed=3481423; DOI=10.1007/BF00325701;
RA   Merrick M.J., Gibbins J., Toukdarian A.;
RT   "The nucleotide sequence of the sigma factor gene ntrA (rpoN) of
RT   Azotobacter vinelandii: analysis of conserved sequences in NtrA
RT   proteins.";
RL   Mol. Gen. Genet. 210:323-330(1987).
CC   -!- FUNCTION: Sigma factors are initiation factors that promote the
CC       attachment of RNA polymerase to specific initiation sites and are
CC       then released. This sigma factor is responsible for the expression
CC       of the nitrogen fixation genes. The open complex (sigma-54 and
CC       core RNA polymerase) serves as the receptor for receipt of the
CC       melting signal from the remotely bound activator protein NifA for
CC       the expression of the nitrogen fixation proteins.
CC   -!- SIMILARITY: Belongs to the sigma-54 factor family.
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DR   EMBL; X05888; CAA29314.1; -; Genomic_DNA.
DR   PIR; S00720; S00720.
DR   ProteinModelPortal; P08623; -.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0003899; F:DNA-directed RNA polymerase activity; IEA:UniProtKB-KW.
DR   GO; GO:0003700; F:sequence-specific DNA binding transcription factor activity; IEA:InterPro.
DR   GO; GO:0016987; F:sigma factor activity; IEA:UniProtKB-KW.
DR   GO; GO:0006352; P:DNA-templated transcription, initiation; IEA:InterPro.
DR   GO; GO:0009399; P:nitrogen fixation; IEA:UniProtKB-KW.
DR   InterPro; IPR000394; RNA_pol_sigma_54.
DR   InterPro; IPR007046; RNA_pol_sigma_54_core-bd.
DR   InterPro; IPR007634; RNA_pol_sigma_54_DNA-bd.
DR   Pfam; PF00309; Sigma54_AID; 1.
DR   Pfam; PF04963; Sigma54_CBD; 1.
DR   Pfam; PF04552; Sigma54_DBD; 1.
DR   PIRSF; PIRSF000774; RpoN; 1.
DR   PRINTS; PR00045; SIGMA54FCT.
DR   TIGRFAMs; TIGR02395; rpoN_sigma; 1.
DR   PROSITE; PS00717; SIGMA54_1; 1.
DR   PROSITE; PS00718; SIGMA54_2; 1.
DR   PROSITE; PS50044; SIGMA54_3; 1.
PE   3: Inferred from homology;
KW   DNA-binding; DNA-directed RNA polymerase; Nitrogen fixation;
KW   Nucleotidyltransferase; Sigma factor; Transcription;
KW   Transcription regulation; Transferase.
FT   CHAIN         1    502       RNA polymerase sigma-54 factor.
FT                                /FTId=PRO_0000205523.
FT   DNA_BIND    391    410       H-T-H motif (Potential).
FT   MOTIF       479    487       RPON box.
FT   COMPBIAS     11     38       Gln-rich.
SQ   SEQUENCE   502 AA;  56917 MW;  699A405BE87D4F10 CRC64;
     MKPSLVLKMG QQLTMTPQLQ QAIRLLQLST LDLQQEIQEA LDSNPMLERQ EDAEDYDSPD
     MLGEHGDQST LDTTPGSYQE GYESGAASED GGTLEEGDWH ERIPSELPVD TAWEDIYQTS
     ASNLPSTDED EWDFTTRTST GESLQSHLLW QLNLTPMSDT DRLIAVTLID SINSDGYLEA
     ALEEILASLD PELGVELDEV EMVLRRIQQF EPAGIAARDL SESLLLQLRQ LPPDTPWLEE
     AKRLAKDYLD LLGNRDFTQL MRRMKLKEEE LRPVIELIQS LNPRPGAQIE SSEPEYVVPD
     VIVRKHNDRW LVELNQEAVP RLRINPHYAG FIRRADASAD NTFMRNQLQE ARWFIKSLQS
     RNETLMKVST QIVEHQRGFL DYGEEAMKPL VLHDIAEAVG MHESTISRVT TQKYMHTPRG
     IYELKYFFSS HVSTAEGGEC SSTAIRAIIK KLIAAENPKK PLSDSKIAGL LEEQGIQVAR
     RTVAKYRESL SIAPSSERKR LM
//
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