Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA.
Nat Struct Mol Biol. 2023 Mar;30(3):239-241. doi: 10.1038/s41594-023-00940-w.
Recent studies offer new insight on the mechanisms of IP6-mediated HIV-1 capsid assembly. The immature Gag lattice enables enrichment of IP6 into virions, aiding capsid maturation. Structures of capsid protein (CA) assemblies reveal motifs serving as switches modulating the conformations of CA pentamers/hexamers and affect co-factor accessibility.
最近的研究提供了关于 IP6 介导的 HIV-1 衣壳组装机制的新见解。不成熟的 Gag 晶格使 IP6 富集到病毒中,有助于衣壳成熟。衣壳蛋白 (CA) 组装体的结构揭示了作为开关的模体,调节 CA 五聚体/六聚体的构象,并影响辅助因子的可及性。