Abstract
By two-dimensional polyacrylamide gel electrophoresis analysis under nonreducing/reducing conditions, five proteins with interchain disulfide bridges are revealed on the surface of the suppressor T cell lymphoma line LH8-105 obtained by radiation leukemia virus-induced transformation of hen egg-white lysozyme-specific suppressor T lymphocytes. Two disulfide-linked surface proteins expressed by LH8-105 cells have been positively identified by immunoprecipitation with specific antisera. The major labeled membrane protein of LH8-105 cells is the murine leukemia virus env glycoprotein gp70. The second disulfide-linked molecule identified on LH8-105 cells has a molecular mass of 84 kDa under nonreducing conditions and 42 kDa after reduction, and is immunoprecipitated by an antiserum which recognizes the T cell receptor for antigen. A disulfide-linked molecule of a similar molecular mass is also immunoprecipitated from surface-labeled LH8-105 cells by a rabbit antiserum directed against a synthetic peptide predicted from the nucleotide sequence of a cDNA clone encoding the β chain constant region of a helper T cell hybridoma. Therefore, a dimeric structure comparable to the T cell receptor expressed by cytotoxic and helper T cells is present on the cell surface of these monoclonal antigen-specific suppressor T cells.
| Original language | English |
|---|---|
| Pages (from-to) | 855-860 |
| Number of pages | 6 |
| Journal | European Journal of Immunology |
| Volume | 15 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1985 |
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ASJC Scopus subject areas
- Immunology
Cite this
Disulfide-linked surface molecules of monoclonal antigen-specific suppressor T cells : Evidence for T cell receptor structures. / Ballinari, D.; Castelli, C.; Traversari, C.; Pierotti, M. A.; Parmiani, G.; Palmieri, G.; Ricciardi-Castagnoli, P.; Adorini, L.
In: European Journal of Immunology, Vol. 15, No. 8, 1985, p. 855-860.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Disulfide-linked surface molecules of monoclonal antigen-specific suppressor T cells
T2 - Evidence for T cell receptor structures
AU - Ballinari, D.
AU - Castelli, C.
AU - Traversari, C.
AU - Pierotti, M. A.
AU - Parmiani, G.
AU - Palmieri, G.
AU - Ricciardi-Castagnoli, P.
AU - Adorini, L.
PY - 1985
Y1 - 1985
N2 - By two-dimensional polyacrylamide gel electrophoresis analysis under nonreducing/reducing conditions, five proteins with interchain disulfide bridges are revealed on the surface of the suppressor T cell lymphoma line LH8-105 obtained by radiation leukemia virus-induced transformation of hen egg-white lysozyme-specific suppressor T lymphocytes. Two disulfide-linked surface proteins expressed by LH8-105 cells have been positively identified by immunoprecipitation with specific antisera. The major labeled membrane protein of LH8-105 cells is the murine leukemia virus env glycoprotein gp70. The second disulfide-linked molecule identified on LH8-105 cells has a molecular mass of 84 kDa under nonreducing conditions and 42 kDa after reduction, and is immunoprecipitated by an antiserum which recognizes the T cell receptor for antigen. A disulfide-linked molecule of a similar molecular mass is also immunoprecipitated from surface-labeled LH8-105 cells by a rabbit antiserum directed against a synthetic peptide predicted from the nucleotide sequence of a cDNA clone encoding the β chain constant region of a helper T cell hybridoma. Therefore, a dimeric structure comparable to the T cell receptor expressed by cytotoxic and helper T cells is present on the cell surface of these monoclonal antigen-specific suppressor T cells.
AB - By two-dimensional polyacrylamide gel electrophoresis analysis under nonreducing/reducing conditions, five proteins with interchain disulfide bridges are revealed on the surface of the suppressor T cell lymphoma line LH8-105 obtained by radiation leukemia virus-induced transformation of hen egg-white lysozyme-specific suppressor T lymphocytes. Two disulfide-linked surface proteins expressed by LH8-105 cells have been positively identified by immunoprecipitation with specific antisera. The major labeled membrane protein of LH8-105 cells is the murine leukemia virus env glycoprotein gp70. The second disulfide-linked molecule identified on LH8-105 cells has a molecular mass of 84 kDa under nonreducing conditions and 42 kDa after reduction, and is immunoprecipitated by an antiserum which recognizes the T cell receptor for antigen. A disulfide-linked molecule of a similar molecular mass is also immunoprecipitated from surface-labeled LH8-105 cells by a rabbit antiserum directed against a synthetic peptide predicted from the nucleotide sequence of a cDNA clone encoding the β chain constant region of a helper T cell hybridoma. Therefore, a dimeric structure comparable to the T cell receptor expressed by cytotoxic and helper T cells is present on the cell surface of these monoclonal antigen-specific suppressor T cells.
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UR - http://www.scopus.com/inward/citedby.url?scp=0022367842&partnerID=8YFLogxK
U2 - 10.1002/eji.1830150822
DO - 10.1002/eji.1830150822
M3 - Article
C2 - 3161748
AN - SCOPUS:0022367842
VL - 15
SP - 855
EP - 860
JO - European Journal of Immunology
JF - European Journal of Immunology
SN - 0014-2980
IS - 8
ER -