A04
Project Area A - Biology and Molecular Oncology
Prof. Dr. Christos Gatsogiannis
Center for Soft Nanoscience and Institute of Medical Physics and Biophysics
University of Münster
Phone: +49 251 83 34411
Email
High-resolution electron microscopy of macro-molecular complexes in cell cycle regulation
Critical state transitions during the cell cycle are governed by complex multi-subunit macromolecular machines. Understanding the respective regulatory processes, requires detailed mechanistic insights and knowledge of their mechanism of action. In this project, we employ cryoEM, protein biochemistry and biophysical techniques to tackle the structure of such important regulators and thus establish a comprehensive structural framework that may open new avenues to design new tools targeting these processes.
One major aim is to dissect the mode of action of p97, a highly abundant ATPase in eukaryotic cells, that plays a key role in protein homeostasis. In particular, we are addressing at molecular level of detail, how a plethora of co-factors modulate p97’s function and divert it into a wide range of different activities in cell cycle control and protein homeostasis. In a further highly multi-disciplinary and collaborative project in the context of the CRC, we aim to provide structural insights into the synergy of several macromolecular complexes involved in the attachment of chromosomes to the mitotic-spindle during the metaphase-anaphase transition. </
Project Members
Dr. Björn Klink
Cole Bourque
Athina Drakonaki
Eda Şamiloğlu Tengirşek
Publications
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Structure of the peroxisomal Pex1/Pex6 ATPase complex bound to a substrateIn: Nature Communications Vol. 14 (2023) Nr. 1, 5942Online Full Text: dx.doi.org/; Online Full Text: dx.doi.org/ (Open Access)
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Phospho-regulated Bim1/EB1 interactions trigger Dam1c ring assembly at the budding yeast outer kinetochoreIn: The EMBO Journal Vol. 40 (2021) Nr. 18, e108004Online Full Text: dx.doi.org/ (Open Access)