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Default Structural insights into the interaction of a monoclonal antibody and Nodal peptides by STD-NMR spectroscopy.

Structural insights into the interaction of a monoclonal antibody and Nodal peptides by STD-NMR spectroscopy.

Related Articles Structural insights into the interaction of a monoclonal antibody and Nodal peptides by STD-NMR spectroscopy.

Bioorg Med Chem. 2017 Dec 15;25(24):6589-6596

Authors: Calvanese L, Focà A, Sandomenico A, Focà G, Caporale A, Doti N, Iaccarino E, Leonardi A, D'Auria G, Ruvo M, Falcigno L

Abstract
Nodal is a growth factor expressed during early embryonic development, but reactivated in several advanced-stage cancers. Targeting of Nodal signaling, which occurs via the binding to Cripto-1 co-receptor, results in inhibition of cell aggressiveness and reduced tumor growth. The Nodal binding region to Cripto-1 was identified and targeted with a high affinity monoclonal antibody (3D1). By STD-NMR technique, we investigated the interaction of Nodal fragments with 3D1 with the aim to elucidate at atomic level the interaction surface. Data indicate with high accuracy the antibody-antigen contact atoms and confirm the information previously obtained by immune-enzymatic methods. Main residues contacted by 3D1 are P46, V47, E49 and E50, which belong to the Nodal loop involved in the interaction with the co-receptor.


PMID: 29113739 [PubMed - indexed for MEDLINE]



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