ID   HFQ_BACCQ               Reviewed;          74 AA.
AC   B9IUM6;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 69.
DE   RecName: Full=RNA-binding protein Hfq {ECO:0000255|HAMAP-Rule:MF_00436};
GN   Name=hfq {ECO:0000255|HAMAP-Rule:MF_00436}; OrderedLocusNames=BCQ_3508;
OS   Bacillus cereus (strain Q1).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=361100;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Q1;
RX   PubMed=19060151; DOI=10.1128/jb.01629-08;
RA   Xiong Z., Jiang Y., Qi D., Lu H., Yang F., Yang J., Chen L., Sun L., Xu X.,
RA   Xue Y., Zhu Y., Jin Q.;
RT   "Complete genome sequence of the extremophilic Bacillus cereus strain Q1
RT   with industrial applications.";
RL   J. Bacteriol. 191:1120-1121(2009).
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; CP000227; ACM13936.1; -; Genomic_DNA.
DR   RefSeq; WP_000813896.1; NC_011969.1.
DR   AlphaFoldDB; B9IUM6; -.
DR   SMR; B9IUM6; -.
DR   EnsemblBacteria; ACM13936; ACM13936; BCQ_3508.
DR   GeneID; 59155794; -.
DR   GeneID; 64199047; -.
DR   GeneID; 67508350; -.
DR   KEGG; bcq:BCQ_3508; -.
DR   HOGENOM; CLU_113688_3_0_9; -.
DR   OMA; QQMVYKH; -.
DR   Proteomes; UP000000441; 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..74
FT                   /note="RNA-binding protein Hfq"
FT                   /id="PRO_1000135020"
SQ   SEQUENCE   74 AA;  8646 MW;  621400020EF87C50 CRC64;
     MKQSINIQDQ FLNQLRKENT FVTLYLLNGF QLRGLIKGFD NFTVLLETEG KQQLIYKHAI
     STFVPQKNVS IELE