ID   DBH_BUCBP               Reviewed;          92 AA.
AC   Q89B22;
DT   30-MAY-2003, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2003, sequence version 1.
DT   03-AUG-2022, entry version 101.
DE   RecName: Full=DNA-binding protein HU;
GN   Name=hup; Synonyms=hupA; OrderedLocusNames=bbp_033;
OS   Buchnera aphidicola subsp. Baizongia pistaciae (strain Bp).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=224915;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Bp;
RX   PubMed=12522265; DOI=10.1073/pnas.0235981100;
RA   van Ham R.C.H.J., Kamerbeek J., Palacios C., Rausell C., Abascal F.,
RA   Bastolla U., Fernandez J.M., Jimenez L., Postigo M., Silva F.J.,
RA   Tamames J., Viguera E., Latorre A., Valencia A., Moran F., Moya A.;
RT   "Reductive genome evolution in Buchnera aphidicola.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:581-586(2003).
CC   -!- FUNCTION: Histone-like DNA-binding protein which is capable of wrapping
CC       DNA to stabilize it, and thus to prevent its denaturation under extreme
CC       environmental conditions. {ECO:0000250}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the bacterial histone-like protein family.
CC       {ECO:0000305}.
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DR   EMBL; AE016826; AAO26776.1; -; Genomic_DNA.
DR   RefSeq; WP_011091177.1; NC_004545.1.
DR   AlphaFoldDB; Q89B22; -.
DR   SMR; Q89B22; -.
DR   STRING; 224915.bbp_033; -.
DR   EnsemblBacteria; AAO26776; AAO26776; bbp_033.
DR   GeneID; 56470577; -.
DR   KEGG; bab:bbp_033; -.
DR   eggNOG; COG0776; Bacteria.
DR   HOGENOM; CLU_105066_3_1_6; -.
DR   OMA; ISQEKQC; -.
DR   OrthoDB; 1847472at2; -.
DR   Proteomes; UP000000601; Chromosome.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0030527; F:structural constituent of chromatin; IEA:InterPro.
DR   GO; GO:0030261; P:chromosome condensation; IEA:UniProtKB-KW.
DR   Gene3D; 4.10.520.10; -; 1.
DR   InterPro; IPR000119; Hist_DNA-bd.
DR   InterPro; IPR020816; Histone-like_DNA-bd_CS.
DR   InterPro; IPR010992; IHF-like_DNA-bd_dom_sf.
DR   PANTHER; PTHR33175; PTHR33175; 1.
DR   Pfam; PF00216; Bac_DNA_binding; 1.
DR   PRINTS; PR01727; DNABINDINGHU.
DR   SMART; SM00411; BHL; 1.
DR   SUPFAM; SSF47729; SSF47729; 1.
DR   PROSITE; PS00045; HISTONE_LIKE; 1.
PE   3: Inferred from homology;
KW   DNA condensation; DNA-binding; Reference proteome.
FT   CHAIN           1..92
FT                   /note="DNA-binding protein HU"
FT                   /id="PRO_0000104926"
SQ   SEQUENCE   92 AA;  10053 MW;  03DA444F2431726C CRC64;
     MNKSELINII SKKSNLSKIQ IKNILEITLT AIIQSLKDGN SVQLVGFGTF KVNNRAARIG
     RNPQTGQTIH ISATKTPVFI SGKTFKTAIK TI