Abstract:
The present invention provides a dimeric TCR (dTCR) or single-chain TCR (scTCR) associated with selected therapeutic agents, wherein said TCR comprises a first segment constituted by an amino acid sequence corresponding to a TCR a chain variable domain sequence fused to the N terminus of an amino acid sequence corresponding to a TCR a chain constant domain extracellular sequence, a second segment constituted by an amino acid sequence corresponding to a TCR ß chain variable domain fused to the N terminus of an amino acid sequence corresponding to TCR ß chain constant domain extracellular sequence, a disulfide bond between the first and second chains, said disulfide bond being one which has no equivalent in native aß T cell receptors, and in the case of said scTCRs further comprising a linker sequence linking the C terminus of the first segment to the N terminus of the second segment, or vice versa, the length of the linker sequence and the position of the disulfide bond being such that the variable domain sequences of the first and second segments are mutually orientated substantially as in native aß T cell receptors.
Abstract:
The present invention provides a dimeric TCR (dTCR) or single-chain TCR (scTCR) associated with selected therapeutic agents, wherein said TCR comprises a first segment constituted by an amino acid sequence corresponding to a TCR α chain variable domain sequence fused to the N terminus of an amino acid sequence corresponding to a TCR α chain constant domain extracellular sequence, a second segment constituted by an amino acid sequence corresponding to a TCR ß chain variable domain fused to the N terminus of an amino acid sequence corresponding to TCR ß chain constant domain extracellular sequence, a disulfide bond between the first and second chains, said disulfide bond being one which has no equivalent in native αβ T cell receptors, and in the case of said scTCRs further comprising a linker sequence linking the C terminus of the first segment to the N terminus of the second segment, or vice versa, the length of the linker sequence and the position of the disulfide bond being such that the variable domain sequences of the first and second segments are mutually orientated substantially as in native αβ T cell receptors.
Abstract:
A diverse library of nucleoproteins each displaying on its surface a polypeptide comprising a native TCR α variable domain sequence or native TCR ß variable domain sequence, in which library the diversity resides in the variety of native TCR α variable domain or native TCR ß variable domain sequences displayed. Such a library is useful for identifying a ligand or ligands of a target peptide-MHC or CD1-antigen.
Abstract:
A proteinaceous particle, for example a bacteriophage, ribosome or cell, displaying on its surface a T-cell receptor (TCR). The displayed TCR is preferably a heterodimer having a non-native disulfide bond between constant domain residues. Such display particles may be used for the creation of diverse TCR libraries for the identificaton of high affinity TCRs. Several high affinities are disclosed.
Abstract:
A diverse library of nucleoproteins each displaying on its surface a polypeptide comprising a native TCR a variable domain sequence or native TCR ß variable domain sequence, in which library the diversity resides in the variety of native TCR a variable domain or native TCR ß variable domain sequences displayed. Such a library is useful for identifying a ligand or ligands of a target peptide-MHC or CD1-antigen.
Abstract:
A proteinaceous particle, for example a bacteriophage, ribosome or cell, displaying on its surface a T-cell receptor (TCR). The displayed TCR is preferably a heterodimer having a non-native disulfide bond between constant domain residues. Such display particles may be used for the creation of diverse TCR libraries for the identificaton of high affinity TCRs. Several high affinities are disclosed.