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 ...
2019 : Staff picks: Mission Local’s favorite Mission Local stories of 2019 A janitor sweeping the sidewalk in front of 1950 ...
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