5YC0:
reference: Exceptional Potency and Structural Basis of a T1249-Derived Lipopeptide Fusion Inhibitor against HIV-1, HIV-2, and Simian Immunodeficiency Virus., Zhu Y, Zhang X, Ding X, Chong H, Cui S, He J, Wang X, He Y, J Biol Chem. 2018 Feb 7. pii: RA118.001729. doi: 10.1074/jbc.RA118.001729. PMID: 29425101

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