Clusters of charged residues at the C terminus of MotA and N terminus of MotB are important for function of the Escherichia coli flagellar motor |
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Authors: | Hosking Edan R Manson Michael D |
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Affiliation: | Department of Biology, Texas A&M University, College Station, TX 77843-3258, USA. |
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Abstract: | MotA contains a conserved C-terminal cluster of negatively charged residues, and MotB contains a conserved N-terminal cluster of positively charged residues. Charge-altering mutations affecting these residues impair motility but do not diminish Mot protein levels. The motility defects are reversed by second-site mutations targeting the same or partner protein. |
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