Repellent Taxis in Response to Nickel Ion Requires neither Ni 2+ Transport nor the Periplasmic NikA Binding Protein

Author:

Englert Derek L.1,Adase Christopher A.2,Jayaraman Arul13,Manson Michael D.24

Affiliation:

1. Artie McFerrin Department of Chemical Engineering

2. Department of Biochemistry and Biophysics

3. Department of Biomedical Engineering

4. Department of Biology, Texas A&M University, College Station, Texas 77843

Abstract

ABSTRACT Ni 2+ and Co 2+ are sensed as repellents by the Escherichia coli Tar chemoreceptor. The periplasmic Ni 2+ binding protein, NikA, has been suggested to sense Ni 2+ . We show here that neither NikA nor the membrane-bound NikB and NikC proteins of the Ni 2+ transport system are required for repellent taxis in response to Ni 2+ .

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

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