The "bridging" aspartate 178 in phthalate dioxygenase facilitates interactions between the Rieske center and the iron(II)--mononuclear center.

Abstract

Phthalate dioxygenase (PDO) and its reductase are parts of a two-component Rieske dioxygenase system that initiates the aerobic breakdown of phthalate by forming cis-4,5-dihydro-4,5-dihydroxyphthalate (DHD). Aspartate D178 in PDO, located near its ferrous mononuclear center, is highly conserved among Rieske dioxygenases. The analogous aspartate has been… (More)
DOI: 10.1021/bi060219b

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