2RSW:
reference: NMR structure, localization, and vesicle fusion of Chikungunya virus fusion peptide., Mohanram H, Nip A, Domadia PN, Bhunia A, Bhattacharjya S, Biochemistry. 2012 Oct 9;51(40):7863-72. doi: 10.1021/bi300901f. Epub 2012 Sep, 26. PMID: 22978677

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