A good VPN can protect your privacy and data, as long as you use it correctly. Here’s how to choose the right one, cut through the marketing lingo, and get the most out of it. I’ve been writing about ...
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 ...
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