13 Result(s)

Article

Structure–function of the cytochrome b₆f lipoprotein complex: a scientific odyssey and personal perspective

Structure–function studies of the cytochrome b₆f complex, the central hetero-oligomeric membrane protein complex in the electron transport chain of oxygenic photosynthesis, which formed the basis for a high-resol...

William A. Cramer in Photosynthesis Research (2019)

Article

David W. Krogmann, 1931–2016

We provide here reflections on the life and career of David W. Krogmann (1931–2016), a great scientist, a mentor and an outstanding teacher, who had a remarkable impact on anyone who came in contact with him. ...

Jerry J. Brand, Cheryl A. Kerfeld, William A. Cramer, Govindjee in Photosynthesis Research (2017)

Article

Structural insight into the role of the Ton complex in energy transduction

In Gram-negative bacteria, outer membrane transporters import nutrients by coupling to an inner membrane protein complex called the Ton complex. The Ton complex consists of TonB, ExbB, and ExbD, and uses the p...

Hervé Celia, Nicholas Noinaj, Stanislav D. Zakharov, Enrica Bordignon… in Nature (2016)

Article

Problems in Obtaining Diffraction-quality Crystals of Hetero-oligomeric Integral Membrane Proteins

The major barrier responsible for the slow pace of structure determination of integral membrane proteins is the difficulty of crystallizing detergent-solubilized hydrophobic proteins, particularly hetero-oligo...

Huamin Zhang, William A. Cramer in Journal of Structural and Functional Genomics (2005)

Article

Structure of the cytochrome b₆f complex: new prosthetic groups, Q-space, and the ‘hors d’oeuvres hypothesis’ for assembly of the complex

3-Å crystal structures of the cytochrome b₆f complex have provided a structural framework for the photosynthetic electron transport chain. The structures of the 220,000 molecular weight dimeric cytochrome b₆f com...

William A. Cramer, Jiusheng Yan, Huamin Zhang, Genji Kurisu… in Photosynthesis Research (2005)

Article

Ironies in Photosynthetic Electron Transport: A Personal Perspective

In this brief personal perspective, studies, mainly in my laboratory, directed toward understanding of the structure and function of the Fe-metalloprotein electron transport carriers of oxygenic photosynthesis...

William A. Cramer in Photosynthesis Research (2004)

Article

The structure of BtuB with bound colicin E3 R-domain implies a translocon

Cellular import of colicin E3 is initiated by the Escherichia coli outer membrane cobalamin transporter, BtuB. The 135-residue 100-Å coiled-coil receptor-binding domain (R135) of colicin E3 forms a 1:1 complex wi...

Genji Kurisu, Stanislav D Zakharov… in Nature Structural & Molecular Biology (2003)

Article

The best offense is a good defense

How does a cell employ a lethal toxin against neighboring cells of the same species, yet provide nearly perfect protection for itself? Two new structures offer insights into the nature of interactions between ...

William A. Cramer, Magdalen Lindeberg, Ross Taylor in Nature Structural Biology (1999)

Article

Introduction

William A. Cramer in Journal of Bioenergetics and Biomembranes (1994)

Article

Voltage-dependent, monomeric channel activity of colicin E1 in artificial membrane vesicles

The dependence of colicin channel activity on membrane potential and peptide concentration was studied in large unilamellar vesicles using colicin E1, its COOH-terminal thermolytic peptide and other channel-fo...

Arnold A. Peterson, William A. Cramer in The Journal of Membrane Biology (1987)

Article

Localization of the gene for apocytochromeb-559 on the plastid chromosome of spinach

The gene for cytochromeb-559, associated with the photosystem II reaction center, has been located on the spinach plastid chromosome by cell-free coupled transcription-translation and RNA-programmed hybrid select...

Peter Westhoff, Juliane Alt, William R. Widger… in Plant Molecular Biology (1985)

Article

Studies on the mechanism of action of channel-forming colicins using artificial membranes

Victor L. Davidson, Kurt R. Brunden, William A. Cramer… in The Journal of Membrane Biology (1984)