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PMID: 6572383 Published · ppublish English Journal Article Research Support, U.S. Gov't, P.H.S.

Antibodies of predetermined specificity detect two retroviral oncogene products and inhibit their kinase activities.

Sen S, Houghten RA, Sherr CJ, Sen A

Abstract

Oligopeptides predicted from the nucleotide sequence of the oncogene v-fes of feline sarcoma virus (FeSV) were synthesized chemically and used to generate specific antibodies. Antisera against a 12-amino-acid-long oligopeptide (12-mer) located 42 residues from the carboxyl terminus of the v-fes coding sequence efficiently recognized the transforming proteins encoded by Snyder-Theilen (ST) and Gardner-Arnstein (GA) strains of FeSV. This 12-mer also contains 10 amino acid residues homologous in order and position to those predicted from the nucleotide sequence of the oncogene v-fps of avian Fujinami sarcoma virus (FSV). The anti-12-mer immunoprecipitated the FSV-specific transforming protein molecules from FSV-transformed cells. Binding of these antipeptide antibody molecules to the v-fes and the v-fps gene products inhibited their associated tyrosine-specific protein kinase (EC 2.7.1.37) activities. The ability to generate such site-specific antisera to the products of related oncogenes will be valuable in the molecular characterization of retroviral transforming proteins and their normal cellular homologs.

MeSH Terms
Antibody Specificity Base Sequence Cell Transformation, Neoplastic Oncogenes Peptides/chemical synthesis Protein Kinase Inhibitors Retroviridae/genetics
Chemicals
Peptides Protein Kinase Inhibitors
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Sen S
Houghten R A
Sherr C J
Sen A
References (38)
38 references, click to expand
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Article Info
Journal
Proceedings of the National Academy of Sciences of the United States of America
Abbr.
Proc Natl Acad Sci U S A
ISSN
0027-8424
Published
1983-03-00
Pages
1246-50
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC393572
Subset
IM
Grants
NCI NIH HHS · CA25803 · United States
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