... gratefullyacknowledged. Supported by Canadian Institutes for Health Researchgrant MT-15624 to BHS; and National Institutes of Health grantsEY06225, EY06226, and EY08571 to PAH and a departmental ... M.P., Arendt, A. , Abdulaeva, G. & Hargrave, P .A. (1999) Sulfhydryl reactivitydemonstrates different conformational states for arrestin, arrestinactivated by a synthetic phosphopeptide, and ... W. Clay Smith2 and Paul A. Hargrave2,31Department of Biochemistry, University of Western Ontario, London, Ontario, Canada;2Departments of Ophthalmology and 3Biochemistry and Molecular Biology...