Table of Contents

cover image

Volume 21, Number 21
01 November 2002

pp 5587-5953

Cover. Sectioned schematic view of an icosahedral pyruvate dehydrogenase complex based on electron cryo-microscopic analysis of an E1E2 sub-complex from B.stearothermophilus. Three of the 60 E2 molecules (colored red, green and yellow) are highlighted. The movement of the swinging E2 lipoyl domain in the annular region between the inner core (cyan) of E2 molecules and the outer shell of E1 molecules (purple) is proposed to be a critical feature underlying active site coupling in the complex. Jacqueline Milne and Sriram Subramaniam work at the National Cancer Institute, NIH in Bethesda, MD, USA (http://hrem.nci.nih.gov). The artist is Donald Bliss at the Medical Arts and Photography Branch at NIH. For further details, see Milne et al., pp. 5587--5598.

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