ID   HFQ_BARQU               Reviewed;          79 AA.
AC   Q6G014;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   19-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 92.
DE   RecName: Full=RNA-binding protein Hfq {ECO:0000255|HAMAP-Rule:MF_00436};
GN   Name=hfq {ECO:0000255|HAMAP-Rule:MF_00436}; OrderedLocusNames=BQ05340;
OS   Bartonella quintana (strain Toulouse) (Rochalimaea quintana).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bartonellaceae; Bartonella.
OX   NCBI_TaxID=283165;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Toulouse;
RX   PubMed=15210978; DOI=10.1073/pnas.0305659101;
RA   Alsmark U.C.M., Frank A.C., Karlberg E.O., Legault B.-A., Ardell D.H.,
RA   Canbaeck B., Eriksson A.-S., Naeslund A.K., Handley S.A., Huvet M.,
RA   La Scola B., Holmberg M., Andersson S.G.E.;
RT   "The louse-borne human pathogen Bartonella quintana is a genomic derivative
RT   of the zoonotic agent Bartonella henselae.";
RL   Proc. Natl. Acad. Sci. U.S.A. 101:9716-9721(2004).
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; BX897700; CAF26029.1; -; Genomic_DNA.
DR   RefSeq; WP_011179303.1; NC_005955.1.
DR   AlphaFoldDB; Q6G014; -.
DR   SMR; Q6G014; -.
DR   STRING; 283165.BQ05340; -.
DR   EnsemblBacteria; CAF26029; CAF26029; BQ05340.
DR   GeneID; 56533100; -.
DR   KEGG; bqu:BQ05340; -.
DR   eggNOG; COG1923; Bacteria.
DR   HOGENOM; CLU_113688_0_0_5; -.
DR   OMA; QQMVYKH; -.
DR   OrthoDB; 1989988at2; -.
DR   Proteomes; UP000000597; 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   RNA-binding; Stress response.
FT   CHAIN           1..79
FT                   /note="RNA-binding protein Hfq"
FT                   /id="PRO_0000095623"
SQ   SEQUENCE   79 AA;  8920 MW;  591AC44E699857DE CRC64;
     MAERSQHLQD VFLNTVRKQK ISLTIFLVNG VKLTGIVTSF DNFCVLLRRD GHAQLVYKHA
     ISTIMPGQPV QMFEGESSE