ID   HFQ_ALIF1               Reviewed;          88 AA.
AC   Q5E2C8;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   15-MAR-2005, sequence version 1.
DT   25-MAY-2022, entry version 87.
DE   RecName: Full=RNA-binding protein Hfq {ECO:0000255|HAMAP-Rule:MF_00436};
GN   Name=hfq {ECO:0000255|HAMAP-Rule:MF_00436}; OrderedLocusNames=VF_2323;
OS   Aliivibrio fischeri (strain ATCC 700601 / ES114) (Vibrio fischeri).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Aliivibrio.
OX   NCBI_TaxID=312309;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700601 / ES114;
RX   PubMed=15703294; DOI=10.1073/pnas.0409900102;
RA   Ruby E.G., Urbanowski M., Campbell J., Dunn A., Faini M., Gunsalus R.,
RA   Lostroh P., Lupp C., McCann J., Millikan D., Schaefer A., Stabb E.,
RA   Stevens A., Visick K., Whistler C., Greenberg E.P.;
RT   "Complete genome sequence of Vibrio fischeri: a symbiotic bacterium with
RT   pathogenic congeners.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:3004-3009(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; CP000020; AAW86818.1; -; Genomic_DNA.
DR   RefSeq; WP_011262725.1; NC_006840.2.
DR   RefSeq; YP_205706.1; NC_006840.2.
DR   AlphaFoldDB; Q5E2C8; -.
DR   SMR; Q5E2C8; -.
DR   STRING; 312309.VF_2323; -.
DR   EnsemblBacteria; AAW86818; AAW86818; VF_2323.
DR   GeneID; 64243744; -.
DR   KEGG; vfi:VF_2323; -.
DR   PATRIC; fig|312309.11.peg.2362; -.
DR   eggNOG; COG1923; Bacteria.
DR   HOGENOM; CLU_113688_2_2_6; -.
DR   OMA; QQMVYKH; -.
DR   OrthoDB; 1989988at2; -.
DR   Proteomes; UP000000537; Chromosome I.
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..88
FT                   /note="RNA-binding protein Hfq"
FT                   /id="PRO_0000265200"
FT   REGION          66..88
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        73..88
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   88 AA;  9956 MW;  1D7F338F18327C02 CRC64;
     MAKGQSLQDP FLNALRRERI PVSIYLVNGI KLQGQIESFD QFVILLKNTV NQMVYKHAIS
     TVVPARAVSH HSASDRPQGE RPQEKTEE