ID   HFQ_CALS4               Reviewed;          86 AA.
AC   Q8RA69;
DT   02-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2002, sequence version 1.
DT   25-MAY-2022, entry version 93.
DE   RecName: Full=RNA-binding protein Hfq {ECO:0000255|HAMAP-Rule:MF_00436};
GN   Name=hfq {ECO:0000255|HAMAP-Rule:MF_00436}; OrderedLocusNames=TTE1360;
OS   Caldanaerobacter subterraneus subsp. tengcongensis (strain DSM 15242 / JCM
OS   11007 / NBRC 100824 / MB4) (Thermoanaerobacter tengcongensis).
OC   Bacteria; Firmicutes; Clostridia; Thermoanaerobacterales;
OC   Thermoanaerobacteraceae; Caldanaerobacter.
OX   NCBI_TaxID=273068;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 15242 / JCM 11007 / NBRC 100824 / MB4;
RX   PubMed=11997336; DOI=10.1101/gr.219302;
RA   Bao Q., Tian Y., Li W., Xu Z., Xuan Z., Hu S., Dong W., Yang J., Chen Y.,
RA   Xue Y., Xu Y., Lai X., Huang L., Dong X., Ma Y., Ling L., Tan H., Chen R.,
RA   Wang J., Yu J., Yang H.;
RT   "A complete sequence of the T. tengcongensis genome.";
RL   Genome Res. 12:689-700(2002).
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; AE008691; AAM24582.1; -; Genomic_DNA.
DR   RefSeq; WP_011025654.1; NC_003869.1.
DR   AlphaFoldDB; Q8RA69; -.
DR   SMR; Q8RA69; -.
DR   STRING; 273068.TTE1360; -.
DR   EnsemblBacteria; AAM24582; AAM24582; TTE1360.
DR   KEGG; tte:TTE1360; -.
DR   eggNOG; COG1923; Bacteria.
DR   HOGENOM; CLU_113688_0_2_9; -.
DR   OMA; QQMVYKH; -.
DR   OrthoDB; 1989988at2; -.
DR   Proteomes; UP000000555; 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..86
FT                   /note="RNA-binding protein Hfq"
FT                   /id="PRO_0000095665"
SQ   SEQUENCE   86 AA;  9666 MW;  D8C3B08014C134BE CRC64;
     MASSKAAINL QDIFLNQVRK EHVPVTVYLI NGFQLKGTVK GFDNFTVVLE SESKQQLLIY
     KHAISTISPQ KPVIFSGSEK DDKKEE