PMID- 2172295 OWN - NLM STAT- MEDLINE DCOM- 19901213 LR - 20210526 IS - 0095-1137 (Print) IS - 1098-660X (Electronic) IS - 0095-1137 (Linking) VI - 28 IP - 9 DP - 1990 Sep TI - Identification of a nucleocapsid protein as a specific serological marker of human herpesvirus 6 infection. PG - 1957-62 AB - Enveloped whole virions and nucleocapsids of human herpesvirus 6 (HHV-6) strain Z29 were purified from supernatant fluids of infected human cord blood lymphocytes by filtration through polyvinylpyrrolidone-treated filters, banding on a Nycondenz step gradient, and centrifugation through two successive continuous sucrose gradients. More than 20 proteins ranging in molecular weight from less than 30,000 to more than 200,000 were identified in preparations of purified whole virions labeled with [35S]methionine and [35S]cysteine. Immunogenic virion proteins of HHV-6 were identified in immunoblot assays with human immune sera, immune sera generated from mice immunized with purified whole virions or purified nucleocapsids, and a monoclonal antibody generated from a mouse immunized with purified nucleocapsids. The sera and the monoclonal antibody reacted strongly with a 101-kilodalton protein in the immunoblots, suggesting that the protein is a component of the nucleocapsid. Human sera lacking HHV-6-specific antibodies and seropositive for one or more of the other human herpesviruses failed to react with this protein, indicating that it is a specific serologic marker for HHV-6 infection. FAU - Yamamoto, M AU - Yamamoto M AD - Division of Viral and Rickettsial Diseases, Centers for Disease Control, Atlanta, Georgia 30333. FAU - Black, J B AU - Black JB FAU - Stewart, J A AU - Stewart JA FAU - Lopez, C AU - Lopez C FAU - Pellett, P E AU - Pellett PE LA - eng PT - Journal Article PL - United States TA - J Clin Microbiol JT - Journal of clinical microbiology JID - 7505564 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antibodies, Viral) RN - 0 (Antigens, Viral) RN - 0 (Biomarkers) RN - 0 (Viral Core Proteins) SB - IM MH - Antibodies, Monoclonal MH - Antibodies, Viral/blood MH - Antigens, Viral MH - Biomarkers MH - Capsid/*immunology/isolation & purification MH - Herpesviridae Infections/diagnosis/*immunology MH - Herpesvirus 6, Human/*isolation & purification MH - Humans MH - Serologic Tests MH - Viral Core Proteins/*immunology/isolation & purification PMC - PMC268086 EDAT- 1990/09/01 00:00 MHDA- 1990/09/01 00:01 PMCR- 1990/09/01 CRDT- 1990/09/01 00:00 PHST- 1990/09/01 00:00 [pubmed] PHST- 1990/09/01 00:01 [medline] PHST- 1990/09/01 00:00 [entrez] PHST- 1990/09/01 00:00 [pmc-release] AID - 10.1128/jcm.28.9.1957-1962.1990 [doi] PST - ppublish SO - J Clin Microbiol. 1990 Sep;28(9):1957-62. doi: 10.1128/jcm.28.9.1957-1962.1990.