ID   DBHB_ECO57              Reviewed;          90 AA.
AC   P0ACF6; P02341;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   03-AUG-2022, entry version 93.
DE   RecName: Full=DNA-binding protein HU-beta;
DE   AltName: Full=HU-1;
DE   AltName: Full=NS1;
GN   Name=hupB; OrderedLocusNames=Z0547, ECs0494;
OS   Escherichia coli O157:H7.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=83334;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=O157:H7 / EDL933 / ATCC 700927 / EHEC;
RX   PubMed=11206551; DOI=10.1038/35054089;
RA   Perna N.T., Plunkett G. III, Burland V., Mau B., Glasner J.D., Rose D.J.,
RA   Mayhew G.F., Evans P.S., Gregor J., Kirkpatrick H.A., Posfai G.,
RA   Hackett J., Klink S., Boutin A., Shao Y., Miller L., Grotbeck E.J.,
RA   Davis N.W., Lim A., Dimalanta E.T., Potamousis K., Apodaca J.,
RA   Anantharaman T.S., Lin J., Yen G., Schwartz D.C., Welch R.A.,
RA   Blattner F.R.;
RT   "Genome sequence of enterohaemorrhagic Escherichia coli O157:H7.";
RL   Nature 409:529-533(2001).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=O157:H7 / Sakai / RIMD 0509952 / EHEC;
RX   PubMed=11258796; DOI=10.1093/dnares/8.1.11;
RA   Hayashi T., Makino K., Ohnishi M., Kurokawa K., Ishii K., Yokoyama K.,
RA   Han C.-G., Ohtsubo E., Nakayama K., Murata T., Tanaka M., Tobe T., Iida T.,
RA   Takami H., Honda T., Sasakawa C., Ogasawara N., Yasunaga T., Kuhara S.,
RA   Shiba T., Hattori M., Shinagawa H.;
RT   "Complete genome sequence of enterohemorrhagic Escherichia coli O157:H7 and
RT   genomic comparison with a laboratory strain K-12.";
RL   DNA Res. 8:11-22(2001).
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: Heterodimer of an alpha and a beta chain. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the bacterial histone-like protein family.
CC       {ECO:0000305}.
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DR   EMBL; AE005174; AAG54790.1; -; Genomic_DNA.
DR   EMBL; BA000007; BAB33917.1; -; Genomic_DNA.
DR   PIR; B85541; B85541.
DR   PIR; F90690; F90690.
DR   RefSeq; NP_308521.1; NC_002695.1.
DR   RefSeq; WP_001043542.1; NZ_SWKA01000005.1.
DR   AlphaFoldDB; P0ACF6; -.
DR   BMRB; P0ACF6; -.
DR   SMR; P0ACF6; -.
DR   STRING; 155864.EDL933_0512; -.
DR   EnsemblBacteria; AAG54790; AAG54790; Z0547.
DR   EnsemblBacteria; BAB33917; BAB33917; ECs_0494.
DR   GeneID; 67416485; -.
DR   GeneID; 914596; -.
DR   KEGG; ece:Z0547; -.
DR   KEGG; ecs:ECs_0494; -.
DR   PATRIC; fig|386585.9.peg.597; -.
DR   eggNOG; COG0776; Bacteria.
DR   HOGENOM; CLU_105066_3_2_6; -.
DR   OMA; PAHEGIN; -.
DR   Proteomes; UP000000558; Chromosome.
DR   Proteomes; UP000002519; 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..90
FT                   /note="DNA-binding protein HU-beta"
FT                   /id="PRO_0000104940"
SQ   SEQUENCE   90 AA;  9226 MW;  C56A3C766D53BB96 CRC64;
     MNKSQLIDKI AAGADISKAA AGRALDAIIA SVTESLKEGD DVALVGFGTF AVKERAARTG
     RNPQTGKEIT IAAAKVPSFR AGKALKDAVN