1. Christopher S. Bond Life Sciences CenterUniversity of MissouriColumbiaMissouriUSA
2. Department of Molecular Microbiology and ImmunologySchool of MedicineUniversity of MissouriColumbiaMissouriUSA
3. Structural Biology CoreUniversity of MissouriColumbiaMissouriUSA
4. Department of BiochemistryUniversity of MissouriColumbiaMissouriUSA
5. AIDS Research CenterNational Institute of Infectious DiseasesTokyoJapan
6. The Chemo‐Sero‐Therapeutic Research Institute (Kaketsuken)KyokushiKikuchiKumamotoJapan
7. Division of Clinical Retrovirology and Infectious DiseasesCenter for AIDS ResearchKumamoto UniversityKumamotoJapan