5G2F:
reference: Structures of type IV pilins from Thermus thermophilus demonstrate similarities with type II secretion system pseudopilins., Karuppiah V, Thistlethwaite A, Derrick JP, J Struct Biol. 2016 Sep 6. pii: S1047-8477(16)30175-7. doi:, 10.1016/j.jsb.2016.08.006. PMID: 27612581

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