1idc
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ISOCITRATE DEHYDROGENASE FROM E.COLI (MUTANT K230M), STEADY-STATE INTERMEDIATE COMPLEX DETERMINED BY LAUE CRYSTALLOGRAPHY
OverviewOverview
Site-directed mutagenesis and Laue diffraction data to 2.5 A resolution, were used to solve the structures of two sequential intermediates formed, during the catalytic actions of isocitrate dehydrogenase. Both, intermediates are distinct from the enzyme-substrate and enzyme-product, complexes. Mutation of key catalytic residues changed the rate determining, steps so that protein and substrate intermediates within the overall, reaction pathway could be visualized.
About this StructureAbout this Structure
1IDC is a Single protein structure of sequence from Escherichia coli with MG and OXS as ligands. Active as Isocitrate dehydrogenase (NADP(+)), with EC number 1.1.1.42 Full crystallographic information is available from OCA.
ReferenceReference
Mutagenesis and Laue structures of enzyme intermediates: isocitrate dehydrogenase., Bolduc JM, Dyer DH, Scott WG, Singer P, Sweet RM, Koshland DE Jr, Stoddard BL, Science. 1995 Jun 2;268(5215):1312-8. PMID:7761851
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