» Articles » PMID: 16628219

Interaction of Moloney Murine Leukemia Virus Matrix Protein with IQGAP

Overview
Journal EMBO J
Date 2006 Apr 22
PMID 16628219
Citations 36
Authors
Affiliations
Soon will be listed here.
Abstract

The matrix protein (MA) of the Moloney murine leukemia virus (M-MuLV) was found to interact with IQGAP1, a prominent regulator of the cytoskeleton. Mutational studies defined residues of MA critical for the interaction, and tests of viruses carrying MA mutations revealed a near-perfect correlation between binding and virus replication. The replication-defective mutants showed defects in both early and late stages of the life cycle. Four viable second-site revertant viruses were isolated from three different replication-defective parental mutants, and in all cases the interaction with IQGAP1 was restored by the suppressor mutations. The interaction of MA and IQGAP1 was readily detected in vitro and in vivo. Virus replication was potently inhibited by a C-terminal fragment of IQGAP1, and impaired by RNAi knockdown of IQGAP1 and 2. We suggest that the IQGAPs link the virus to the cytoskeleton for trafficking both into and out of the cell.

Citing Articles

BGLF4 kinase regulates the formation of the EBV cytoplasmic assembly compartment and the recruitment of cellular IQGAP1 for virion release.

Dai Y, Yeh S, Cheng Y, Huang W, Liou G, Yang T J Virol. 2024; 98(2):e0189923.

PMID: 38294245 PMC: 10878254. DOI: 10.1128/jvi.01899-23.


Upregulation of IQGAP2 by EBV transactivator Rta and its influence on EBV life cycle.

Lin K, Weng L, Chen S, Lin S, Tsai C J Virol. 2023; 97(8):e0054023.

PMID: 37504571 PMC: 10506479. DOI: 10.1128/jvi.00540-23.


Discovery of small molecule inhibitors that effectively disrupt IQGAP1-Cdc42 interaction in breast cancer cells.

Sayedyahossein S, Smith J, Barnaeva E, Li Z, Choe J, Ronzetti M Sci Rep. 2022; 12(1):17372.

PMID: 36253497 PMC: 9576799. DOI: 10.1038/s41598-022-21342-w.


Advances in HIV-1 Assembly.

Lerner G, Weaver N, Anokhin B, Spearman P Viruses. 2022; 14(3).

PMID: 35336885 PMC: 8952333. DOI: 10.3390/v14030478.


Embedding of HIV Egress within Cortical F-Actin.

Aggarwal A, Stella A, Henry C, Narayan K, Turville S Pathogens. 2022; 11(1).

PMID: 35056004 PMC: 8777837. DOI: 10.3390/pathogens11010056.


References
1.
Li S, Wang Q, Chakladar A, Bronson R, Bernards A . Gastric hyperplasia in mice lacking the putative Cdc42 effector IQGAP1. Mol Cell Biol. 1999; 20(2):697-701. PMC: 85173. DOI: 10.1128/MCB.20.2.697-701.2000. View

2.
Ho S, Hunt H, Horton R, Pullen J, Pease L . Site-directed mutagenesis by overlap extension using the polymerase chain reaction. Gene. 1989; 77(1):51-9. DOI: 10.1016/0378-1119(89)90358-2. View

3.
Fukata M, Kuroda S, Fujii K, Nakamura T, Shoji I, Matsuura Y . Regulation of cross-linking of actin filament by IQGAP1, a target for Cdc42. J Biol Chem. 1997; 272(47):29579-83. DOI: 10.1074/jbc.272.47.29579. View

4.
Resh M . A myristoyl switch regulates membrane binding of HIV-1 Gag. Proc Natl Acad Sci U S A. 2004; 101(2):417-8. PMC: 327161. DOI: 10.1073/pnas.0308043101. View

5.
Tang Y, Winkler U, Freed E, Torrey T, Kim W, Li H . Cellular motor protein KIF-4 associates with retroviral Gag. J Virol. 1999; 73(12):10508-13. PMC: 113106. DOI: 10.1128/JVI.73.12.10508-10513.1999. View