ID   HFQ_BACCR               Reviewed;          74 AA.
AC   Q81A74;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   25-MAY-2022, entry version 101.
DE   RecName: Full=RNA-binding protein Hfq {ECO:0000255|HAMAP-Rule:MF_00436};
GN   Name=hfq {ECO:0000255|HAMAP-Rule:MF_00436}; OrderedLocusNames=BC_3713;
OS   Bacillus cereus (strain ATCC 14579 / DSM 31 / CCUG 7414 / JCM 2152 / NBRC
OS   15305 / NCIMB 9373 / NCTC 2599 / NRRL B-3711).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=226900;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 14579 / DSM 31 / CCUG 7414 / JCM 2152 / NBRC 15305 / NCIMB 9373
RC   / NCTC 2599 / NRRL B-3711;
RX   PubMed=12721630; DOI=10.1038/nature01582;
RA   Ivanova N., Sorokin A., Anderson I., Galleron N., Candelon B., Kapatral V.,
RA   Bhattacharyya A., Reznik G., Mikhailova N., Lapidus A., Chu L., Mazur M.,
RA   Goltsman E., Larsen N., D'Souza M., Walunas T., Grechkin Y., Pusch G.,
RA   Haselkorn R., Fonstein M., Ehrlich S.D., Overbeek R., Kyrpides N.C.;
RT   "Genome sequence of Bacillus cereus and comparative analysis with Bacillus
RT   anthracis.";
RL   Nature 423:87-91(2003).
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; AE016877; AAP10640.1; -; Genomic_DNA.
DR   RefSeq; NP_833439.1; NC_004722.1.
DR   RefSeq; WP_000813896.1; NZ_CP034551.1.
DR   AlphaFoldDB; Q81A74; -.
DR   SMR; Q81A74; -.
DR   STRING; 226900.BC_3713; -.
DR   EnsemblBacteria; AAP10640; AAP10640; BC_3713.
DR   GeneID; 59155794; -.
DR   GeneID; 64199047; -.
DR   GeneID; 67508350; -.
DR   KEGG; bce:BC3713; -.
DR   PATRIC; fig|226900.8.peg.3825; -.
DR   HOGENOM; CLU_113688_3_0_9; -.
DR   OMA; QQMVYKH; -.
DR   PRO; PR:Q81A74; -.
DR   Proteomes; UP000001417; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0003723; F:RNA binding; IBA:GO_Central.
DR   GO; GO:0043487; P:regulation of RNA stability; IBA:GO_Central.
DR   GO; GO:0006355; P:regulation of transcription, DNA-templated; IEA:InterPro.
DR   GO; GO:0045974; P:regulation of translation, ncRNA-mediated; IBA:GO_Central.
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..74
FT                   /note="RNA-binding protein Hfq"
FT                   /id="PRO_0000095616"
SQ   SEQUENCE   74 AA;  8646 MW;  621400020EF87C50 CRC64;
     MKQSINIQDQ FLNQLRKENT FVTLYLLNGF QLRGLIKGFD NFTVLLETEG KQQLIYKHAI
     STFVPQKNVS IELE