Kluge, S., Mack, K., Iyer, S., Pujol, F. M., Heigele, A., Learn, G., et al. (2014). Nef proteins of epidemic HIV-1 group O strains antagonize human tetherin. Cell Host & Microbe, 16(5), 639-650. doi:10.1016/j.chom.2014.10.002.