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Crystal structure of the humanized recombinant Fab fragment of a murine; antibodyCrystal structure of the humanized recombinant Fab fragment of a murine; antibody
Structural highlights
Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedAlzheimer's disease is the most common form of dementia, affecting 26 million people worldwide. The Abeta peptide (39-43 amino acids) derived from the proteolytic cleavage of the amyloid precursor protein is one of the main constituents of amyloid plaques associated with disease pathogenesis and therefore a validated target for therapy. Recently, we characterized antibody fragments (Fab and scFvs) derived from the murine monoclonal antibody WO-2, which bind the immunodominant epitope ((3)EFRH(6)) in the Abeta peptide at the N-terminus. In vitro, these fragments are able to inhibit fibril formation, disaggregate preformed amyloid fibrils, and protect neuroblastoma cells against oligomer-mediated toxicity. In this study, we describe the humanization of WO-2 using complementary determining region loop grafting onto the human germline gene and the determination of the three-dimensional structure by X-ray crystallography. This humanized version retains a high affinity for the Abeta peptide and therefore is a potential candidate for passive immunotherapy of Alzheimer's disease. Germline humanization of a murine Abeta antibody and crystal structure of the humanized recombinant Fab fragment.,Robert R, Streltsov VA, Newman J, Pearce LA, Wark KL, Dolezal O Protein Sci. 2010 Feb;19(2):299-308. PMID:20014445[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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