Tcr molecules targeting kras mutation, cells and use of tcr molecules and cells
AssigneeBeijing Dcty Biotech Co., Ltd.
InventorsPing WANG, Shao WEI, Xiaorui LI, Kunfu WANG
Life of this patent
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Abstract
A binding protein has a binding domain having antigen specificity for an antigen peptide:HLA complex. The binding domain has a T cell receptor (TCR) α-chain variable region and a TCR β-chain variable region. A use of the binding protein and a pharmaceutical composition having the binding protein in the treatment of cancers associated 5 with the antigen peptide are also provided.
Claims22
A binding protein, which comprises a binding domain having antigen specificity for an antigen peptide:HLA complex, wherein the binding domain comprises a T cell receptor (TCR) α chain variable region and a TCR β chain variable region, wherein:
- 1) the antigen peptide comprises the amino acid sequence of VVVGADGVGK (SEQ ID NO:
- 1);
- the HLA is HLA-A*11:01;
- CDR3 of the α chain variable region comprises the amino acid sequence of SEQ ID NO:
- 7, 17, 27, 37, 47, or 57, or an amino acid sequence having at least 80% identity or 90% identity to the amino acid sequence of SEQ ID NO:
- 7, 17, 27, 37, 47, or 57;
- CDR3 of the β chain variable region comprises the amino acid sequence of SEQ ID NO:
- 12, 22, 32, 42, 52, or 62, or an amino acid sequence having at least 80% identity or 90% identity to the amino acid sequence of SEQ ID NO:
- 12, 22, 32, 42, 52, or 62;
- or
- 2) the antigen peptide comprises the amino acid sequence of KLVVVGAVGV (SEQ ID NO:
- 2);
- the HLA is HLA-A*02:01;
- CDR3 of the α chain variable region comprises the amino acid sequence of SEQ ID NO:
- 67, 77, 87, 97, 107, 117, 127, 137, 147 or 157, or an amino acid sequence having at least 80% identity or 90% identity to the amino acid sequence of SEQ ID NO:
- 67, 77, 87, 97, 107, 117, 127, 137, 147 or 157;
- CDR3 of the β chain variable region comprises the amino acid sequence of SEQ ID NO:
- 72, 82, 92, 102, 112, 122, 132, 142, 152 or 162, or an amino acid sequence having at least 80% identity or 90% identity to the amino acid sequence of SEQ ID NO:
- 72, 82, 92, 102, 112, 122, 132, 142, 152 or 162.
(canceled)
15-21. (canceled)
Dependencies are inferred from the claim text.