ID   HFQ_NITWN               Reviewed;          82 AA.
AC   Q3SSN1;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   11-OCT-2005, sequence version 1.
DT   25-MAY-2022, entry version 103.
DE   RecName: Full=RNA-binding protein Hfq {ECO:0000255|HAMAP-Rule:MF_00436};
GN   Name=hfq {ECO:0000255|HAMAP-Rule:MF_00436}; OrderedLocusNames=Nwi_1449;
OS   Nitrobacter winogradskyi (strain ATCC 25391 / DSM 10237 / CIP 104748 /
OS   NCIMB 11846 / Nb-255).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Nitrobacter.
OX   NCBI_TaxID=323098;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25391 / DSM 10237 / CIP 104748 / NCIMB 11846 / Nb-255;
RX   PubMed=16517654; DOI=10.1128/aem.72.3.2050-2063.2006;
RA   Starkenburg S.R., Chain P.S.G., Sayavedra-Soto L.A., Hauser L., Land M.L.,
RA   Larimer F.W., Malfatti S.A., Klotz M.G., Bottomley P.J., Arp D.J.,
RA   Hickey W.J.;
RT   "Genome sequence of the chemolithoautotrophic nitrite-oxidizing bacterium
RT   Nitrobacter winogradskyi Nb-255.";
RL   Appl. Environ. Microbiol. 72:2050-2063(2006).
CC   -!- FUNCTION: RNA chaperone that binds small regulatory RNA (sRNAs) and
CC       mRNAs to facilitate mRNA translational regulation in response to
CC       envelope stress, environmental stress and changes in metabolite
CC       concentrations. Also binds with high specificity to tRNAs.
CC       {ECO:0000255|HAMAP-Rule:MF_00436}.
CC   -!- SUBUNIT: Homohexamer. {ECO:0000255|HAMAP-Rule:MF_00436}.
CC   -!- SIMILARITY: Belongs to the Hfq family. {ECO:0000255|HAMAP-
CC       Rule:MF_00436}.
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DR   EMBL; CP000115; ABA04710.1; -; Genomic_DNA.
DR   RefSeq; WP_009797508.1; NC_007406.1.
DR   AlphaFoldDB; Q3SSN1; -.
DR   SMR; Q3SSN1; -.
DR   STRING; 323098.Nwi_1449; -.
DR   EnsemblBacteria; ABA04710; ABA04710; Nwi_1449.
DR   KEGG; nwi:Nwi_1449; -.
DR   eggNOG; COG1923; Bacteria.
DR   HOGENOM; CLU_113688_0_0_5; -.
DR   OMA; QQMVYKH; -.
DR   OrthoDB; 1989988at2; -.
DR   Proteomes; UP000002531; Chromosome.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006355; P:regulation of transcription, DNA-templated; IEA:InterPro.
DR   CDD; cd01716; Hfq; 1.
DR   HAMAP; MF_00436; Hfq; 1.
DR   InterPro; IPR005001; Hfq.
DR   InterPro; IPR010920; LSM_dom_sf.
DR   PANTHER; PTHR34772; PTHR34772; 1.
DR   Pfam; PF17209; Hfq; 1.
DR   SUPFAM; SSF50182; SSF50182; 1.
DR   TIGRFAMs; TIGR02383; Hfq; 1.
PE   3: Inferred from homology;
KW   Reference proteome; RNA-binding; Stress response.
FT   CHAIN           1..82
FT                   /note="RNA-binding protein Hfq"
FT                   /id="PRO_1000080673"
SQ   SEQUENCE   82 AA;  9235 MW;  AAC887AE764CF6B2 CRC64;
     MAIDRAQNLQ DTFLNHVRKT KTPLTIFLVN GVKLQGIVTW FDNFCLLLRR DGHSQLVYKH
     AISTIMPGAP IQLFEGGEDA PL