10040
Biochemistry 1998, 37, 10040-10046
Identification of Histidine 118 in the D1 Polypeptide of Photosystem II as the Axial Ligand to Chlorophyll Z† David H. Stewart,‡ Agnes Cua,§ Dexter A. Chisholm,| Bruce A. Diner,| David F. Bocian,§ and Gary W. Brudvig*,‡ Department of Chemistry, Yale UniVersity, New HaVen, Connecticut 06520-8107, Department of Chemistry, UniVersity of California, RiVerside, California 92521-0403, and Central Research and DeVelopment Department, Experimental Station, E. I. DuPont de Nemours and Company, Wilmington, Delaware 19880 ReceiVed March 23, 1998; ReVised Manuscript ReceiVed May 13, 1998
ABSTRACT: Chlorophyll Z (ChlZ) is a redox-active chlorophyll (Chl) which is photooxidized by lowtemperature (
