VipA/VipB, sheath of the bacterial type IV secretion system, micrographs for helical reconstruction taken on a K2 detector [77 micrographs in MRC format]
Publication:
Structure of the type VI secretion system contractile sheath.
Kudryashev M, Wang RY, Brackmann M, Scherer S, Maier T, Baker D, DiMaio F, Stahlberg H, Egelman EH, Basler M