Abstract
The freeze-fracture technique, which produced high-resolution replicas of large internal faces of membranes, was used for an ultrastructural study of the nuclei of herpes simplex virus-infected BHK-21 cells and mock-infected controls. Crystalline arrays of viral nucleocapsids were found in the nucleoplasm of infected cells, and numerous nuclear membrane "blebs" and protrusions were observed. The numerous areas of membrane distortions were not found to contain nuclear pores. In addition, specific areas of normal protein intramembranous particles are deleted from certain areas of the nuclear membrane as a result of herpes simplex virus, type 2, infection.
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