Anti-complement immunofluorescence establishes nuclear localization of human cytomegalovirus matrix protein

Diana Weiner, Wade Gibson, Kay L. Fields

Research output: Contribution to journalArticle


A monospecific, polyclonal antiserum to the 69-kDa matrix protein of human cytomegalovirus (HCMV) was prepared in a guinea pig and used to determine the intracellular distribution of this viral antigen. The resulting antiserum was specific for infected cells as tested by immunofluorescence, and specific for the HCMV matrix protein as determined by "nitrocellulose immunoassay" of electrophoretically separated, infected-cell proteins. Antibodies were reacted with fixed, infected human fibroblasts, and visualized by the anticomplement immunofluorescence procedure to avoid complications arising from the strong IgG Fc binding activity of the infected-cell-specific cytoplasmic inclusion. Results establish that the matrix protein is located in the nucleus, and indicate that it is concentrated in the nucleoplasm rather than within the intranuclear inclusions.

Original languageEnglish (US)
Pages (from-to)19-28
Number of pages10
Issue number1
StatePublished - Nov 1985


ASJC Scopus subject areas

  • Virology

Cite this