Welte, Wolfram

The first x-ray structure of a porin was determined by the group of Georg Schulz and Wolfram Welte at Ereiburg University, Germany, who succeeded in growing crystals of a porin from Rhodobacter capsulatus that diffracted to 1.8 A resolution. Since then the x-ray structures of several other porin molecules have been determined and found to be very similar to the R. capsulatus porin despite having no significant sequence identity. 

Figure 23-29 (A) Stereoscopic drawing of light-harvesting complex from the dinoflagellate protozoan Amphidinium carterae. The central cavity contains eight molecules of peridinin, two of which can be seen protruding from the top. Deeply buried toward the bottom are two molecules of Chi a. Also present are two molecules of digalactosyl diacylglycerol. From Hofmann et al.268 Courtesy of Wolfram Welte. (B) Structure of peridinin.

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