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About the Cover


(Upper) Three-dimensional structure of an antigen-antibody complex. The antigen is lyzozyme (green, with a protruding residue, glutamine-121 in red). (Lower) The antigen and the antibody have been pulled apart to reveal their complementary contacting surfaces. See pages 747 and 755. [A. G. Amit et al., Institut Pasteur, Paris, France]


[Table of Contents]


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Science. ISSN 0036-8075 (print), 1095-9203 (online)