Nature Communications (May 2021)

INI1/SMARCB1 Rpt1 domain mimics TAR RNA in binding to integrase to facilitate HIV-1 replication

  • Updesh Dixit,
  • Savita Bhutoria,
  • Xuhong Wu,
  • Liming Qiu,
  • Menachem Spira,
  • Sheeba Mathew,
  • Richard Harris,
  • Lucas J. Adams,
  • Sean Cahill,
  • Rajiv Pathak,
  • P. Rajesh Kumar,
  • Minh Nguyen,
  • Seetharama A. Acharya,
  • Michael Brenowitz,
  • Steven C. Almo,
  • Xiaoqin Zou,
  • Alasdair C. Steven,
  • David Cowburn,
  • Mark Girvin,
  • Ganjam V. Kalpana

DOI
https://doi.org/10.1038/s41467-021-22733-9
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 15

Abstract

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HIV-1 integrase (IN) binds the host factor INI1/SMARCB1, which is required at multiple stages of HIV-1 replication. Here, the authors show that the same IN residues are involved in INI1 and RNA binding and in influencing particle morphogenesis and suggest that the IN-binding INI1 domain is structurally similar to HIV TAR RNA.