Arnon, R Crystalline papain derivative containing in intramolecular mercury bridge. [electronic resource] - The Journal of biological chemistry Feb 1969 - 1033-8 p. digital Publication Type: Journal Article ISSN: 0021-9258 Subjects--Topical Terms: CrystallographyCysteineEdetic AcidFluorometryKineticsMercuryPapainPrecipitin TestsSpectrophotometrySulfides