Subunit association in acetohydroxy acid synthase isozyme III.

Abstract

Acetohydroxy acid synthase isozyme III (AHAS III) from Escherichia coli is composed of large and small subunits (encoded by the genes ilvI and ilvH) in an alpha 2 beta 2 structure. The large (61-kDa) subunit apparently contains the catalytic machinery of the enzyme, while the small (17-kDa) subunit is required for specific stabilization of the active… (More)

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