Published on New York State Department of Health, Wadsworth Center (

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ESX-1 primarily associates with the old “non-septal” pole. M. smegmatis cells expressing a fusion of msmeg0046::yfp were imaged every 10 mins in a heated growth chamber. The fluorescent fusion protein (red) localizes to a single cell pole, the old pole (Wirth et al., Mol. Micro. 2012).

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