Add Yahoo as a preferred source to see more of our stories on Google. Do you have a picture from paradise you’d like to share with Tropicalia readers? We’d love to print it. Email photos to tropicalia ...
Type IV secretion systems (T4SSs) comprise 12 protein components, VirB1–VirB11 and VirD4. VirB2 forms a pilus and is co-purified with VirB5. VirB4, VirB11 and VirD4 are ATPases powering pilus assembly ...