HOKF_ECO57
ID HOKF_ECO57 Reviewed; 50 AA.
AC Q8XBX0; Q7AGS3;
DT 06-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT 06-DEC-2005, sequence version 3.
DT 03-AUG-2022, entry version 90.
DE RecName: Full=Putative protein HokF;
GN Name=hokF; OrderedLocusNames=Z0721, ECs0620;
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: Toxic component of a type I toxin-antitoxin (TA) system (By
CC similarity). When overexpressed kills cells within minutes; causes
CC collapse of the transmembrane potential and arrest of respiration (By
CC similarity). Its toxic effect is probably neutralized by an antisense
CC antitoxin Sok RNA (By similarity). {ECO:0000250|UniProtKB:P0ACG4}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane
CC {ECO:0000250|UniProtKB:P0ACG4}; Single-pass membrane protein
CC {ECO:0000305}.
CC -!- SIMILARITY: Belongs to the Hok/Gef family. {ECO:0000305}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAG54915.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR EMBL; AE005174; AAG54915.1; ALT_INIT; Genomic_DNA.
DR EMBL; BA000007; BAB34043.1; -; Genomic_DNA.
DR PIR; D90706; D90706.
DR PIR; G85556; G85556.
DR RefSeq; NP_308647.1; NC_002695.1.
DR RefSeq; WP_001303983.1; NZ_SWKA01000005.1.
DR AlphaFoldDB; Q8XBX0; -.
DR SMR; Q8XBX0; -.
DR STRING; 155864.EDL933_0647; -.
DR EnsemblBacteria; AAG54915; AAG54915; Z0721.
DR EnsemblBacteria; BAB34043; BAB34043; ECs_0620.
DR GeneID; 916979; -.
DR KEGG; ece:Z0721; -.
DR KEGG; ecs:ECs_0620; -.
DR PATRIC; fig|386585.9.peg.728; -.
DR HOGENOM; CLU_177638_3_0_6; -.
DR Proteomes; UP000000558; Chromosome.
DR Proteomes; UP000002519; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR InterPro; IPR000021; Hok/gef_toxin.
DR Pfam; PF01848; HOK_GEF; 1.
DR PRINTS; PR00281; HOKGEFTOXIC.
PE 3: Inferred from homology;
KW Cell inner membrane; Cell membrane; Membrane; Reference proteome;
KW Toxin-antitoxin system; Transmembrane; Transmembrane helix.
FT CHAIN 1..50
FT /note="Putative protein HokF"
FT /id="PRO_0000199039"
FT TRANSMEM 5..25
FT /note="Helical"
FT /evidence="ECO:0000255"
SQ SEQUENCE 50 AA; 5604 MW; 9B8393632CEF6835 CRC64;
MLTKYALVAV IVLCLTVPGF TLLVGDSLCE FTVKERNIEF RAVLAYEPKK