Bernhard Grimm is Professor of Plant Physiology at the Institute of Biology at the Humboldt-Universität zu Berlin and Dean of the Faculty of Life Science. He studied biology at the University of Hannover and performed doctoral studies in the group of Prof. Klaus Kloppstech. He spent five years at a postdoctoral fellow and research assistant in the Department of Prof. Diter von Wettstein at the Carlsberg Laboratory, before he moved as group leader to the Institute of Plant Genetics and Crop Plant Research (IPK) in Gatersleben, Germany. Finally, he was appointed at the Humboldt University in January 2001. His current research interests cover several aspects of photosynthesis and chloroplast biogenesis: tetrapyrrole biosynthesis, plastid-derived retrograde signalling, riboflavin biosynthesis, the assembly of chlorophyll-binding proteins, posttranslational and cotranslational mechanisms in chloroplasts.

• 1. Studying conformational changes of proteins via single-molecule spectroscopy: Cryogenic temperatures versus room temperatureJürgen Köhler and Richard J. Cogdell2. Structural studies on tetrapyrrole containing proteins enabled by femtosecond X-ray pulsesJan Kern, Frank Müh and Athina Zouni3. The multifaceted regulation of 5-aminolevulinic acid synthesis. Numerous ways to control glutamyl-tRNA reductaseAndreas Richter and Bernhard Grimm4. Porphyrin and heme synthesisTingting Fang, Bernhard Grimm and Gunhild Layer5. Transcriptional control for the chlorophyll metabolismKoichi Kobayashi and Tatsuru Masuda6. Posttranslational control of tetrapyrrole biosynthesis: Interacting proteins, chaperones, auxiliary factorsJosephine Herbst, Daniel Hey and Bernhard Grimm7. Chlorophyll-binding subunits of photosystem I and II: Biosynthesis, chlorophyll incorporation and assemblyJosef Komenda and Roman Sobotka8. The role of tetrapyrroles in chloroplast-to-nucleus retrograde signalingMatthew J. Terry and Jessica Bampton9. Evolution and function of light-harvesting antenna in oxygenic photosynthesisDiana Kirilovsky and Claudia Büchel

Bernhard Grimm is Professor of Plant Physiology at the Institute of Biology at the Humboldt-Universität zu Berlin and Dean of the Faculty of Life Science. He studied biology at the University of Hannover and performed doctoral studies in the group of Prof. Klaus Kloppstech. He spent five years at a postdoctoral fellow and research assistant in the Department of Prof. Diter von Wettstein at the Carlsberg Laboratory, before he moved as group leader to the Institute of Plant Genetics and Crop Plant Research (IPK) in Gatersleben, Germany. Finally, he was appointed at the Humboldt University in January 2001. His current research interests cover several aspects of photosynthesis and chloroplast biogenesis: tetrapyrrole biosynthesis, plastid-derived retrograde signalling, riboflavin biosynthesis, the assembly of chlorophyll-binding proteins, posttranslational and cotranslational mechanisms in chloroplasts.

• 1. Studying conformational changes of proteins via single-molecule spectroscopy: Cryogenic temperatures versus room temperatureJürgen Köhler and Richard J. Cogdell2. Structural studies on tetrapyrrole containing proteins enabled by femtosecond X-ray pulsesJan Kern, Frank Müh and Athina Zouni3. The multifaceted regulation of 5-aminolevulinic acid synthesis. Numerous ways to control glutamyl-tRNA reductaseAndreas Richter and Bernhard Grimm4. Porphyrin and heme synthesisTingting Fang, Bernhard Grimm and Gunhild Layer5. Transcriptional control for the chlorophyll metabolismKoichi Kobayashi and Tatsuru Masuda6. Posttranslational control of tetrapyrrole biosynthesis: Interacting proteins, chaperones, auxiliary factorsJosephine Herbst, Daniel Hey and Bernhard Grimm7. Chlorophyll-binding subunits of photosystem I and II: Biosynthesis, chlorophyll incorporation and assemblyJosef Komenda and Roman Sobotka8. The role of tetrapyrroles in chloroplast-to-nucleus retrograde signalingMatthew J. Terry and Jessica Bampton9. Evolution and function of light-harvesting antenna in oxygenic photosynthesisDiana Kirilovsky and Claudia Büchel

Bernhard Grimm is Professor of Plant Physiology at the Institute of Biology at the Humboldt-Universität zu Berlin and Dean of the Faculty of Life Science. He studied biology at the University of Hannover and performed doctoral studies in the group of Prof. Klaus Kloppstech. He spent five years at a postdoctoral fellow and research assistant in the Department of Prof. Diter von Wettstein at the Carlsberg Laboratory, before he moved as group leader to the Institute of Plant Genetics and Crop Plant Research (IPK) in Gatersleben, Germany. Finally, he was appointed at the Humboldt University in January 2001. His current research interests cover several aspects of photosynthesis and chloroplast biogenesis: tetrapyrrole biosynthesis, plastid-derived retrograde signalling, riboflavin biosynthesis, the assembly of chlorophyll-binding proteins, posttranslational and cotranslational mechanisms in chloroplasts.

• 1. Studying conformational changes of proteins via single-molecule spectroscopy: Cryogenic temperatures versus room temperatureJürgen Köhler and Richard J. Cogdell2. Structural studies on tetrapyrrole containing proteins enabled by femtosecond X-ray pulsesJan Kern, Frank Müh and Athina Zouni3. The multifaceted regulation of 5-aminolevulinic acid synthesis. Numerous ways to control glutamyl-tRNA reductaseAndreas Richter and Bernhard Grimm4. Porphyrin and heme synthesisTingting Fang, Bernhard Grimm and Gunhild Layer5. Transcriptional control for the chlorophyll metabolismKoichi Kobayashi and Tatsuru Masuda6. Posttranslational control of tetrapyrrole biosynthesis: Interacting proteins, chaperones, auxiliary factorsJosephine Herbst, Daniel Hey and Bernhard Grimm7. Chlorophyll-binding subunits of photosystem I and II: Biosynthesis, chlorophyll incorporation and assemblyJosef Komenda and Roman Sobotka8. The role of tetrapyrroles in chloroplast-to-nucleus retrograde signalingMatthew J. Terry and Jessica Bampton9. Evolution and function of light-harvesting antenna in oxygenic photosynthesisDiana Kirilovsky and Claudia Büchel