Modified t cell receptor linked by disulphide bond between...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/12 (2006.01) A61K 38/17 (2006.01) A61P 35/00 (2006.01) A61P 37/02 (2006.01) C07K 14/725 (2006.01) C12N 1/21 (2006.01) C12N 5/10 (2006.01) C12N 15/63 (2006.01) G01N 33/566 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2516702

The present invention provides a soluble T cell receptor (sTCR), which comprises (i) all or part of a TCR .alpha. chain, except the transmembrane domain thereof, and (ii) all or part of a TCR .beta. chain, except the transmembrane domain thereof. (i) and (ii) each comprise a functional variable domain and at least a part of the constant domain of the TCR chain, and are linked by a disulphide bond between constant domain residues which is not present in native TCR, characterised in that the sTCR recognises a CD1-antigen complex, a bacterial superantigen or a peptide-MHC/superantigen complex.

La présente invention concerne un récepteur des lymphocytes T soluble (sTCR), comprenant (i) la totalité ou une partie d'une chaîne .alpha. du TCR, à l'exception du domaine transmembranaire de celle-ci, et (ii) la totalité ou une partie d'une chaîne .beta. du TCR, à l'exception du domaine transmembranaire de celle-ci. Les parties (i) et (ii) comprennent chacune un domaine variable fonctionnel et au moins une partie du domaine constant de la chaîne du TCR et sont liées par une liaison disulfure entre les groupes du domaine constant, cette liaison disulfure étant absente dans le TCR natif. L'invention se caractérise en ce que le sTCR reconnaît un complexe CD1-antigène, un superantigène bactérien ou un complexe peptide-MHC/superantigène.

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