Expression of human papillomavirus type 16 E7 protein by recombinant baculovirus and use for the detection of E7 antibodies in sera from cervical carcinoma patients.
Authors
Stacey, Simon NGhosh, Anna K
Bartholomew, Jennifer S
Tindle, R W
Stern, Peter L
Mackett, Mike
Arrand, John R
Affiliation
Department of Molecular Biology, Paterson Institute for Cancer Research, Christie Hospital, Manchester, England.Issue Date
1993-05
Metadata
Show full item recordAbstract
Although the presence of serum antibodies against the human papillomavirus type 16 (HPV-16) E7 protein has been linked with cervical cancer, currently available assays detect antibodies in only ca. 40% of carcinoma patients. The dependence of these serological assays on synthetic target antigens which present only linear epitopes may be a limiting factor. In order to produce a more realistic target antigen for use in serological assays, we have expressed the HPV-16 E7 protein in insect cells using a recombinant baculovirus vector. Two major E7 forms of ca. 18kDa and 16kDa were produced and characterised. The 16kDa component was shown to be truncated at the N-terminus. A radioimmunoprecipitation assay was developed for the detection of anti-E7 antibodies in human sera. This assay showed a marked increase in detection rate compared with a western blotting method based on bacterially derived E7 fusion proteins.Citation
Expression of human papillomavirus type 16 E7 protein by recombinant baculovirus and use for the detection of E7 antibodies in sera from cervical carcinoma patients. 1993, 40 (1):14-21 J. Med. Virol.Journal
Journal of Medical VirologyPubMed ID
7685808Type
ArticleLanguage
enISSN
0146-6615Collections
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