ID   HFQ_HAHCH               Reviewed;          83 AA.
AC   Q2SBC2;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 1.
DT   25-MAY-2022, entry version 82.
DE   RecName: Full=RNA-binding protein Hfq {ECO:0000255|HAMAP-Rule:MF_00436};
GN   Name=hfq {ECO:0000255|HAMAP-Rule:MF_00436}; OrderedLocusNames=HCH_05383;
OS   Hahella chejuensis (strain KCTC 2396).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Oceanospirillales;
OC   Hahellaceae; Hahella.
OX   NCBI_TaxID=349521;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KCTC 2396;
RX   PubMed=16352867; DOI=10.1093/nar/gki1016;
RA   Jeong H., Yim J.H., Lee C., Choi S.-H., Park Y.K., Yoon S.H., Hur C.-G.,
RA   Kang H.-Y., Kim D., Lee H.H., Park K.H., Park S.-H., Park H.-S., Lee H.K.,
RA   Oh T.K., Kim J.F.;
RT   "Genomic blueprint of Hahella chejuensis, a marine microbe producing an
RT   algicidal agent.";
RL   Nucleic Acids Res. 33:7066-7073(2005).
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; CP000155; ABC32052.1; -; Genomic_DNA.
DR   RefSeq; WP_011399116.1; NC_007645.1.
DR   AlphaFoldDB; Q2SBC2; -.
DR   SMR; Q2SBC2; -.
DR   STRING; 349521.HCH_05383; -.
DR   EnsemblBacteria; ABC32052; ABC32052; HCH_05383.
DR   KEGG; hch:HCH_05383; -.
DR   eggNOG; COG1923; Bacteria.
DR   HOGENOM; CLU_113688_2_2_6; -.
DR   OMA; QQMVYKH; -.
DR   OrthoDB; 1989988at2; -.
DR   Proteomes; UP000000238; 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..83
FT                   /note="RNA-binding protein Hfq"
FT                   /id="PRO_0000265162"
SQ   SEQUENCE   83 AA;  9172 MW;  6AAB1990EEA9AE3C CRC64;
     MSKGQSLQDP YLNALRKERI PVSIFLVNGI KLQGQIESFD QFVILLKNTV SQMVYKHAIS
     TVVPARNVRI AAQGEGENEA SNA