Otting, GottfriedWüthrich, Kurt2026-03-012026-03-010022-2364ORCID:/0000-0002-0563-0146/work/206892079https://hdl.handle.net/1885/733806844We thank Sandoz Ltd., Basel, for a gift of Pro’-cyclosporin, Mr. A. Eugster for the isolation of P22 62 repressor l-76, and Mrs. E. H. Hunziker-Kwik and Mr. R. Marani for the careful preparation of the illustrations and the typescript. Financial support by the Schweizerischer Nationalfonds (Project 3.198.85) is gratefully acknowledged.6en© 1988 by Academic Press, inc.1988-02-1510.1016/0022-2364(88)90361-745449123834