ID   IHFA_ECO57              Reviewed;          99 AA.
AC   P0A6X9; P06984;
DT   01-APR-1988, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-1988, sequence version 1.
DT   03-AUG-2022, entry version 104.
DE   RecName: Full=Integration host factor subunit alpha;
DE            Short=IHF-alpha;
GN   Name=ihfA; Synonyms=himA; OrderedLocusNames=Z2741, ECs2419;
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: This protein is one of the two subunits of integration host
CC       factor, a specific DNA-binding protein that functions in genetic
CC       recombination as well as in transcriptional and translational control.
CC       {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; AAG56699.1; -; Genomic_DNA.
DR   EMBL; BA000007; BAB35842.1; -; Genomic_DNA.
DR   PIR; C90931; C90931.
DR   PIR; G85779; G85779.
DR   RefSeq; NP_310446.1; NC_002695.1.
DR   RefSeq; WP_001229265.1; NZ_SWKA01000004.1.
DR   AlphaFoldDB; P0A6X9; -.
DR   SMR; P0A6X9; -.
DR   STRING; 155864.EDL933_2671; -.
DR   EnsemblBacteria; AAG56699; AAG56699; Z2741.
DR   EnsemblBacteria; BAB35842; BAB35842; ECs_2419.
DR   GeneID; 67415582; -.
DR   GeneID; 913811; -.
DR   KEGG; ece:Z2741; -.
DR   KEGG; ecs:ECs_2419; -.
DR   PATRIC; fig|386585.9.peg.2533; -.
DR   eggNOG; COG0776; Bacteria.
DR   HOGENOM; CLU_105066_1_3_6; -.
DR   OMA; IYVRGFG; -.
DR   Proteomes; UP000000558; Chromosome.
DR   Proteomes; UP000002519; Chromosome.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0030527; F:structural constituent of chromatin; IEA:InterPro.
DR   GO; GO:0006310; P:DNA recombination; IEA:UniProtKB-UniRule.
DR   GO; GO:0006355; P:regulation of transcription, DNA-templated; IEA:UniProtKB-UniRule.
DR   GO; GO:0006417; P:regulation of translation; IEA:UniProtKB-UniRule.
DR   CDD; cd13835; IHF_A; 1.
DR   Gene3D; 4.10.520.10; -; 1.
DR   HAMAP; MF_00380; IHF_alpha; 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   InterPro; IPR005684; IHF_alpha.
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   TIGRFAMs; TIGR00987; himA; 1.
DR   PROSITE; PS00045; HISTONE_LIKE; 1.
PE   3: Inferred from homology;
KW   DNA recombination; DNA-binding; Reference proteome; Transcription;
KW   Transcription regulation; Translation regulation.
FT   CHAIN           1..99
FT                   /note="Integration host factor subunit alpha"
FT                   /id="PRO_0000105007"
FT   REGION          49..73
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   99 AA;  11354 MW;  278AC82BCD79D754 CRC64;
     MALTKAEMSE YLFDKLGLSK RDAKELVELF FEEIRRALEN GEQVKLSGFG NFDLRDKNQR
     PGRNPKTGED IPITARRVVT FRPGQKLKSR VENASPKDE