Expression and Porin Activity of P28 and OMP-1F during Intracellular <i>Ehrlichia chaffeensis</i> Development

Abstract excerpt

Ehrlichia chaffeensis, an obligatory intracellular gram-negative bacterium, must take up various nutrients and metabolic compounds because it lacks many genes involved in metabolism. Nutrient uptake by a gram-negative bacterium occurs primarily through pores or channels in the bacterial outer membrane. Here we demonstrate that isolated E. chaffeensis outer membranes have porin activities, as determined by a...

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