Dmitry Shvarev

Conformational variability of cyanobacterial ChlI, the AAA+ motor of magnesium chelatase involved in chlorophyll biosynthesis

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Dmitry Shvarev, Alischa Ira Scholz, Arne Moeller Magnesium chelatase is a conserved enzyme complex responsible for the first committed step of chlorophyll biosynthesis in photosynthetic organisms, which is the addition of magnesium to the chlorophyll precursor, protoporphyrin IX. The complex is composed of the catalytic subunit ChlH, the bridging subunit ChlD, and the subunit ChlI, …

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Structure of the HOPS tethering complex, a lysosomal membrane fusion machinery

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Dmitry Shvarev, Jannis Schoppe, Caroline König, Angela Perz, Nadia Füllbrunn, Stephan Kiontke, Lars Langemeyer, Dovile Januliene, Kilian Schnelle, Daniel Kümmel, Florian Fröhlich, Arne Moeller, Christian Ungermann Lysosomes are essential for cellular recycling, nutrient signaling, autophagy, and pathogenic bacteria and viruses invasion. Lysosomal fusion is fundamental to cell survival and requires HOPS, a conserved heterohexameric tethering …

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Frozen motion: how cryo-EM changes the way we look at ABC transporters

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Dmitry Shvarev, Dovile Januliene, Arne Moeller ATP-binding cassette (ABC) transporters are widely present molecular machines that transfer substrates across the cell membrane. ABC transporters are involved in numerous physiological processes and are often clinical targets. Structural biology is fundamental to obtain the molecular details underlying ABC transporter function and suggest approaches to modulate it. Until …

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