Characterization of recombinant soluble human transforming growth factor-beta receptor type II (rhTGF-beta sRII)
Autor: | Jeff Wenker, John E. Humphrey, Roger C. Lucas, Greg Fransen, Monica Lik-Shing Tsang, Li Zhou, James A. Weatherbee, Smith John M, Bo-Ling Zheng, Maureen O'Connor-McCourt |
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Rok vydání: | 1995 |
Předmět: |
Signal peptide
Glycosylation Insecta Immunology Genetic Vectors Molecular Sequence Data Enzyme-Linked Immunosorbent Assay Biology Biochemistry Sensitivity and Specificity law.invention chemistry.chemical_compound Mice law Antibody Specificity Transforming Growth Factor beta Immunology and Allergy Animals Humans Cloning Molecular Receptor Molecular Biology Cells Cultured chemistry.chemical_classification Base Sequence Hematology Molecular biology Recombinant Proteins Amino acid chemistry Solubility Cell culture Polyclonal antibodies Mink Recombinant DNA biology.protein Baculoviridae Receptors Transforming Growth Factor beta Transforming growth factor |
Zdroj: | Cytokine. 7(5) |
ISSN: | 1043-4666 |
Popis: | Recombinant human transforming growth factor soluble receptor Type II (rhTGF-beta sRII) corresponding to the 159 amino acid extracellular domain of hTGF-beta RII has been expressed in insect cells using the baculovirus expression system or in a mouse myeloma cell line. N-terminal sequence analysis of the purified protein revealed the removal of the 23 amino acid signal peptide. In SDS-PAGE, the rhTGF-beta sRII resolves into multiple bands due to N-linked glycosylation. Recombinant hTGF-beta sRII is a TGF-beta antagonist and will inhibit the biological activities of TGF-beta 1, TGF-beta 3, and TGF-beta 5 on TGF-beta-responsive cell lines, such as murine HT-2 or human TF-1 with an ED50 of approximately 0.3 micrograms/mL. However, hTGF-beta sRII does not inhibit TGF-beta 2 bioactivities in these cell lines, suggesting that hTGF-beta RII has low affinity for TGF-beta 2. Polyclonal antibodies to hTGF-beta sRII have been produced in goats and purified on Protein-G affinity columns. This antibody can inhibit TGF-beta 1,2,3,5-dependent bioactivities on human cell lines such as TF-1. Additionally, this antibody has species cross-reactivity and will also inhibit TGF-beta-dependent bioactivities on murine cells.(ABSTRACT TRUNCATED AT 250 WORDS) |
Databáze: | OpenAIRE |
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