The Histidine Residue of QseC Is Required for Canonical Signaling between QseB and PmrB in Uropathogenic Escherichia coli
نویسندگان
چکیده
منابع مشابه
Histidine-94 is the only important histidine residue in the melibiose permease of Escherichia coli.
Oligonucleotide-directed, site-specific mutagenesis has been utilized to modify the melB gene of Escherichia coli such that each of the seven His residues in the melibiose permease has been replaced with Arg. Replacement of His-213, His-442, or His-456 has no significant effect on permease activity, while permease with Arg in place of His-198, His-318, or His-357 retains more than 70% of wild-t...
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15 صفحه اولlac permease of Escherichia coli containing a single histidine residue is fully functional.
Arg-302, His-322, and Glu-325, neighboring residues in putative helices IX and X of the lac permease (lacY gene product) of Escherichia coli, play an important role in lactose/H+ symport, possibly as components of a catalytic triad similar to that postulated for the serine proteases [Kaback, H. R. (1987) Biochemistry 26, 2071-2076]. By using restriction fragments of lacY genes harboring specifi...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 2017
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.00060-17