immunoglobulin G1, anti-[human alphaVbeta3 (CD51/CD61, CD51/GPIIIa, CD51/platelet membrane glycoprotein IIIa, vitronectin receptor)] humanized monoclonal antibody MEDI-522 (hLM609); gamma1 heavy chain [humanized VH (Homo sapiens FR/Mus musculus CDR from clone LM609)-Homo sapiens IGHG1*03] (220-214')-disulfide with kappa light chain [humanized V-KAPPA (Homo sapiens FR/Mus musculus CDR from clone LM609)-Homo sapiens IGKC*01]; (226-226'':229-229'')-bisdisulfide dimer