We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Molecular association of herpes simplex virus type 1 glycoprotein E with membrane protein Us9.
- Authors
Awasthi, Sita; Friedman, Harvey
- Abstract
Herpes simplex virus type 1 (HSV-1) glycoprotein E (gE), glycoprotein I (gI), and Us9 promote efficient anterograde axonal transport of virus from the neuron cytoplasm to the axon terminus. HSV-1 and PRV gE and gI form a heterodimer that is required for anterograde transport, but an association that includes Us9 has not been demonstrated. NS-gE380 is an HSV-1 mutant that has five amino acids inserted after gE residue 380, rendering it defective in anterograde axonal transport. We demonstrated that gE, gI and Us9 form a trimolecular complex in Vero cells infected with NS-gE380 virus in which gE binds to both Us9 and gI. We detected the complex using immunoprecipitation with anti-gE or anti-gI monoclonal antibodies in the presence of ionic detergents. Under these conditions, Us9 did not associate with gE in cells infected with wild-type HSV-1; however, using a nonionic detergent, TritonX-100, an association between Us9 and gE was detected in immunoprecipitates of both wild-type and NS-gE380-infected cells. The results suggest that the interaction between Us9 and gE is weak and disrupted by ionic detergents in wild-type infected cells. We postulate that the tight interaction between Us9 and gE leads to the anterograde spread defect in the NS-gE380 virus.
- Subjects
MOLECULAR association; HERPES simplex transmission; MOLECULAR structure of glycoproteins; MEMBRANE proteins; AXONAL transport
- Publication
Archives of Virology, 2016, Vol 161, Issue 11, p3203
- ISSN
0304-8608
- Publication type
Article
- DOI
10.1007/s00705-016-3028-z