Electron Microscopic and Biochemical Studies of Pyruvate Dehydrogenase Complex of Escherichia coli | Zendy

H. FernándezMorán | Zendy; Lester J. Reed | Zendy; Masahiko Koike | Zendy; Charles R. Willms | Zendy

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Electron Microscopic and Biochemical Studies of Pyruvate Dehydrogenase Complex of Escherichia coli

Author(s) -

H. FernándezMorán,

Lester J. Reed,

Masahiko Koike,

Charles R. Willms

Publication year - 1964

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.145.3635.930

Subject(s) - angstrom , pyruvate dehydrogenase complex , electron microscope , escherichia coli , chemistry , crystallography , oxoglutarate dehydrogenase complex , dehydrogenase , enzyme , biophysics , biochemistry , biology , physics , pyruvate dehydrogenase phosphatase , optics , gene

Examination with the electron microscope of the pyruvate dehydrogenase complex and its component enzymes from Escherichia coli indicates that the complex has a polyhedral structure with a diameter of about 300 to 350 angstroms and a height of 200 to 250 angstroms. The reconstituted complex closely resembles the native complex in appearance. A tentative model of this multienzyme complex is proposed on the basis of the correlated biochemical and electron-microscopic data

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