National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01-67167
米国
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
R01-AI062520
米国
引用
ジャーナル: Science / 年: 2020 タイトル: Structural and mechanistic bases for a potent HIV-1 capsid inhibitor. 著者: Stephanie M Bester / Guochao Wei / Haiyan Zhao / Daniel Adu-Ampratwum / Naseer Iqbal / Valentine V Courouble / Ashwanth C Francis / Arun S Annamalai / Parmit K Singh / Nikoloz Shkriabai / ...著者: Stephanie M Bester / Guochao Wei / Haiyan Zhao / Daniel Adu-Ampratwum / Naseer Iqbal / Valentine V Courouble / Ashwanth C Francis / Arun S Annamalai / Parmit K Singh / Nikoloz Shkriabai / Peter Van Blerkom / James Morrison / Eric M Poeschla / Alan N Engelman / Gregory B Melikyan / Patrick R Griffin / James R Fuchs / Francisco J Asturias / Mamuka Kvaratskhelia / 要旨: The potent HIV-1 capsid inhibitor GS-6207 is an investigational principal component of long-acting antiretroviral therapy. We found that GS-6207 inhibits HIV-1 by stabilizing and thereby preventing ...The potent HIV-1 capsid inhibitor GS-6207 is an investigational principal component of long-acting antiretroviral therapy. We found that GS-6207 inhibits HIV-1 by stabilizing and thereby preventing functional disassembly of the capsid shell in infected cells. X-ray crystallography, cryo-electron microscopy, and hydrogen-deuterium exchange experiments revealed that GS-6207 tightly binds two adjoining capsid subunits and promotes distal intra- and inter-hexamer interactions that stabilize the curved capsid lattice. In addition, GS-6207 interferes with capsid binding to the cellular HIV-1 cofactors Nup153 and CPSF6 that mediate viral nuclear import and direct integration into gene-rich regions of chromatin. These findings elucidate structural insights into the multimodal, potent antiviral activity of GS-6207 and provide a means for rationally developing second-generation therapies.