Download MendeleyCrystallographic refinement of the three-dimensional structure of the FabD1.3-lysozyme complex at 2.5-A resolution.
Fischmann, T.O., Bentley, G.A., Bhat, T.N., Boulot, G., Mariuzza, R.A., Phillips, S.E., Tello, D., Poljak, R.J.(1991) J Biol Chem 266: 12915-12920
- PubMed: 1712773
- Primary Citation of Related Structures:
1FDL - PubMed Abstract:
The three-dimensional crystal structure of the complex between the Fab from the monoclonal anti-lysozyme antibody D1.3 and the antigen, hen egg white lysozyme, has been refined by crystallographic techniques using x-ray intensity data to 2.5-A resolution. The antibody contacts the antigen with residues from all its complementarity determining regions. Antigen residues 18-27 and 117-125 form a discontinuous antigenic determinant making hydrogen bonds and van der Waals interactions with the antibody. Water molecules at or near the antigen-antibody interface mediate some contacts between antigen and antibody. The fine specificity of antibody D1.3, which does not bind (K alpha less than 10(5) M-1) avian lysozymes where Gln121 in the amino acid sequence is occupied by His, can be explained on the basis of the refined model.
Organizational Affiliation:
Département d'Immunologie, Institut Pasteur, Paris, France.
