Cryo-EM structure of the conjugation H-pilus reveals the cyclic nature of the TrhA pilin - Naito Ishimoto; Joshua L. C. Wong; Shan He; Sally Shirran; Olivia Wright-Paramio; Chloe Seddon; Nanki Singh; Carlos Balsalobre; Ravi R. Sonani; Abigail Clements; Edward H. Egelman; Gad Frankel; et al. (Proceedings of the National Academy of Sciences, 2025)