Structure of a single-chain antibody variable domain (Fv) fragment complexed with a carbohydrate antigen at 1.7-A resolution.Zdanov, A., Li, Y., Bundle, D.R., Deng, S.J., MacKenzie, C.R., Narang, S.A., Young, N.M., Cygler, M.
(1994) Proc.Natl.Acad.Sci.USA 91: 6423-6427
- PubMed: 7517550
- PubMed Abstract:
- The Solution Structure of a Trisaccharide-Antibody Complex: Comparison of NMR Measurements with a Crystal Structure
Bundle, D.R.,Baumann, H.,Brisson, J.-R.,Gagne, S.,Zdanov, A.,Cygler, M.
() TO BE PUBLISHED --: --
- Recognition of a Cell-Surface Oligo-Saccharide of Pathogenic Salmonella by an Antibody Fab Fragment
Cygler, M.,Rose, D.R.,Bundle, D.R.
(1991) Science 253: 442
- Bacterial Expression and Secretion of Various Single-Chain Fv Genes Encoding Proteins Specific for a Salmonella Serotype B O-Antigen
Anand, N.N.,Mandal, S.,Mackenzie, C.R.,Sadowska, J.,Sijurskjold, B.,Young, N.M.,Budle, D.R.,Narang, S.A.
(1991) J.Biol.Chem. 266: 21874
We describe here the 1.7-A resolution structure of a single-chain antibody variable domain (scFv) molecule, based on the carbohydrate-binding antibody Se155-4, complexed with the trisaccharide ligand alpha-D-Gal(1-->2)[alpha-D-Abe(1-->3)]alpha-D-Manp ...
We describe here the 1.7-A resolution structure of a single-chain antibody variable domain (scFv) molecule, based on the carbohydrate-binding antibody Se155-4, complexed with the trisaccharide ligand alpha-D-Gal(1-->2)[alpha-D-Abe(1-->3)]alpha-D-Manp1-->OMe, where Abe is abequose. The scFv expressed in Escherichia coli has the variable region light chain to heavy chain polarity with the domains connected by a 19-residue linker. Although the linker is partially disordered in the crystal, the packing of the molecules suggests a monomeric state of the scFv. The carbohydrate adopts a different conformation about the Man-Gal linkage than was observed previously in the Fab-trisaccharide complex. Instead of a direct hydrogen bond between O2Abe and O2Gal, these two atoms are bridged by a water molecule in the present complex.
Biotechnology Research Institute, National Research Council of Canada, Montreal, PQ.