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Cross-Neutralizing Human Monoclonal Anti-HIV-1 Antibody 2F5: Preparation and Crystallographic Analysis of the Free and Epitope-Complexed Forms of its F ab Fragment

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The human monoclonal antibody 2F5 is a potent neutralizer of most clades of HIV-1 and possesses protective effects against viral transmission. It recognizes the linear epitope ELDKWAS of the viral envelope protein gp41. As structural information about epitope recognition may help to develop an HIV-1 vaccine we initiated crystallographic analyses of mAb 2F5 and its epitope complex. We now report the preparation of the corresponding Fab fragments, complexation with the epitope peptide, and crystallization of free mAb 2F5 Fab as well as the peptide complex. Both crystal forms are well suited for high-resolution structural analysis.
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Document Type: Review Article

Affiliations: Departments of Biochemistry, Immunology, Medical Biophysics and Molecular and Medical Genetics and Protein Engineering Network - Centres of Excellence, University of Toronto,Canada

Publication date: 2001-10-01

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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.
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