HSPA5 and cancer: When these two GRP78-binding peptides were fused with a proapoptotic peptidomimetic, the two resulting peptides, WIFPWIQL-GG-D(KLAKLAK)2 (later called BMTP78) and WDLAWMFRLPVG-GG-D(KLAKLAK)2, both selectively targeted tumors and suppressed tumor growth in vivo by inducing cancer cell apoptosis.