Patent ID: 8551723

Claim:
An isolated polypeptide comprising a tyrosine kinase-inducible domain (pKID), wherein the pKID comprises an amino acid sequence selected from the group consisting of (a) an amino acid sequence having formula (I): DKX 1 X 2 DGWX 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 (1) wherein X 1 is D or N; X 2 is A or G; X 3 , X 4 and X 5 are each an amino acid; and X 6 is Y while X 7 , X 8 , X 9 and X 10 are each an optionally present amino acid; and (b) an amino acid sequence of SEQ ID NO: 7, 8 or 10.