Patent ID: 7592315

Claim:
An isolated polypeptide consisting of the amino acid sequence set forth in SEQ ID NO: 81 fused to a tag selected from the group consisting of a glutathione-S-transferase (GST) tag, a hexahistidine (His6) tag, a maltose binding protein (MBP) tag, a haemagglutinin (HA) tag, a cellulose binding protein (CBP) tag and a myc tag; which is optionally (i) labeled with 32 P, 35 S, 3 H, 99m Tc 123l , 111 In, 68 Ga, 18 F, 125 I, 131 I, 113m In, 76 Br, 67 Ga, 99m Tc, 123 I, 111 In or 68 Ga; (ii) fused to a polyethylene glycol molecule; (iii) fused to a polyethylene glycol molecule which is characterized by a molecular weight of 2 kDa, 5 kDa, 10 kDa, 12 kDa, 20 kDa, 30 kDa or 40 kDa; or (iv) cyclic.