Structure of the Anti-C60 Fullerene Antibody Fab Fragment: Structural Determinants of Fullerene Binding.Osipov, E.M., Hendrickson, O.D., Tikhonova, T.V., Zherdev, A.V., Solopova, O.N., Sveshnikov, P.G., Dzantiev, B.B., Popov, V.O.
(2019) Acta Naturae 11: 58-65
- PubMed: 31024749
- PubMed Abstract:
The structure of the anti-C <sub>60 </sub> fullerene antibody Fab fragment (FabC <sub>60 </sub>) was solved by X-ray crystallography. The computer-aided docking of C <sub>60 </sub> into the antigen-binding pocket of FabC <sub>60 </sub> showed that bi ...
The structure of the anti-C 60 fullerene antibody Fab fragment (FabC 60 ) was solved by X-ray crystallography. The computer-aided docking of C 60 into the antigen-binding pocket of FabC 60 showed that binding of C 60 to FabC 60 is governed by the enthalpy and entropy; namely, by π-π stacking interactions with aromatic residues of the antigen-binding site and reduction of the solvent-accessible area of the hydrophobic surface of C 60 . A fragment of the mobile CDR H3 loop located on the surface of FabC 60 interferes with C 60 binding in the antigen-binding site, thereby resulting in low antibody affinity for C 60 . The structure of apo-FabC 60 has been deposited with pdbid 6H3H.
Russian Research Center of Molecular Diagnostics and Therapy, Simpheropolsky Blvd. 8, 113149, Moscow, Russia.,Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky Ave. 33, 119071, Moscow, Russia.