Domain organization of phytochelatin synthase: functional properties of truncated enzyme species identified by limited proteolysis.

Abstract excerpt

Phytochelatin synthase (PCS) is a major determinant of heavy metal tolerance in plants and other organisms. No structural information on this enzyme is as yet available. It is generally believed, however, that the active site region is located in the more conserved N-terminal portion of PCS, whereas various, as yet unidentified (but supposedly less critical) roles have been proposed for the C-terminal region. To...

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