NMR and modeling studies of protein-carbohydrate interactions: synthesis, three-dimensional structure, and recognition properties of a minimum hevein domain with binding affinity for chitooligosaccharidesAboitiz, N., Vila-Perello, M., Groves, P., Asensio, J.L., Andreu, D., Canada, F.J., Jimenez-Barbero, J.
(2004) Chembiochem 5: 1245-1245
- PubMed: 15368576
- DOI: 10.1002/cbic.200400025
- Also Cited By: 1ZWU, 1ZUV, 1ZNT
- PubMed Abstract:
- NMR investigations of protein-carbohydrate interactions: refined three-dimensional structure of the complex between hevein and methyl beta-chitobioside
Asensio, J.L.,Canada, F.J.,Bruix, M.,Gonzalez, C.,Khiar, N.,Rodriguez-Romero, A.,Jimenez-Barbero, J.
(1998) Glycobiology 8: 569
- The interaction of hevein with N-acetylglucosamine-containing oligosaccharides. Solution structure of hevein complexed to chitobiose
Asensio, J.L.,Canada, F.J.,Bruix, M.,Rodriguez-Romero, A.,Jimenez-Barbero, J.
(1995) Eur.J.Biochem. 230: 621
- NMR Investigations of Protein-Carbohydrate Interactions: Studies on the Relevance of Trp/Tyr Variations in Lectin Binding Sites as Deduced from Titration Microcalorimetry and NMR Studies on Hevein Domains. Determination of the NMR Structure of the Complex between Pseudohevein and N'N',N''-triacetylchitotriose
Asensio, J.L.,Siebert, H.-C.,von der Lieth, C.-W.,Laynez, J.,Bruix, M.,Soedjanaamadja, U.M.,Beintema, J.J.,Canada, F.J.,Gabius, H.-J.,Jimenez-Barbero, J.
(2000) PROTEINS: STRUCT.,FUNCT.,GENET. 40: 218
- Structural basis for chitin recognition by defense proteins: GlcNAc residues are bound in a multivalent fashion by extended binding sites in hevein domains
Asensio, J.L.,Canada, F.J.,Siebert, H.-C.,Laynez, J.,Poveda, A.,Nieto, P.M.,Soedjanaamadja, U.M.,Gabius, H.-J.,Jimenez-Barbero, J.
(2000) Chem.Biol. 7: 529
- H NMR study of the solution structure of Ac-AMP2, a sugar binding antimicrobial protein isolated from amaranthus caudatus
Martins, J.C.,Maes, D.,Loris, R.,Pepermans, H.A.,Wyns, L.,Willem, R.,Verheyden, P.
(1996) J.Mol.Biol. 258: 322
HEV32, a 32-residue, truncated hevein lacking eleven C-terminal amino acids, was synthesized by solid-phase methodology and correctly folded with three cysteine bridge pairs. The affinities of HEV32 for small chitin fragments--in the forms of N,N',N" ...
HEV32, a 32-residue, truncated hevein lacking eleven C-terminal amino acids, was synthesized by solid-phase methodology and correctly folded with three cysteine bridge pairs. The affinities of HEV32 for small chitin fragments--in the forms of N,N',N"-triacetylchitotriose ((GlcNAc)3) (millimolar) and N,N',N",N"',N",N"'-hexaacetylchitohexaose ((GlcNAc)6) (micromolar)--as measured by NMR and fluorescence methods, are comparable with those of native hevein. The HEV32 ligand-binding process is enthalpy driven, while entropy opposes binding. The NMR structure of ligand-bound HEV32 in aqueous solution was determined to be highly similar to the NMR structure of ligand-bound hevein. Solvated molecular-dynamics simulations were performed in order to monitor the changes in side-chain conformation of the binding site of HEV32 and hevein upon interaction with ligands. The calculations suggest that the Trp21 side-chain orientation of HEV32 in the free form differs from that in the bound state; this agrees with fluorescence and thermodynamic data. HEV32 provides a simple molecular model for studying protein-carbohydrate interactions and for understanding the physiological relevance of small native hevein domains lacking C-terminal residues.
Department of Protein Structure and Function, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain.