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A novel secretion pathway originally found in plants has recently been discovered in bacteria and termed TAT, for "twin-arginine translocation," with respect to the presence of an Arg-Arg motif in the signal sequence of TAT-secreted products. However, it is unknown whether the TAT system contributes
Aspiration pneumonia is a life-threatening infectious disease often caused by oral anaerobic and periodontal pathogens such as Porphyromonas gingivalis. This organism produces proteolytic enzymes, known as gingipains, which manipulate innate immune responses and promote chronic inflammation. Here,