Insights into conformational changes in cytochrome b during the early steps of its maturation
Andreas Carlström,
Martin Ott
Abstract:Membrane proteins carrying redox cofactors are key subunits of respiratory chain complexes, yet the exact path of their folding and maturation remains poorly understood. Here, using cryo‐EM and structure prediction via Alphafold2, we generated models of early assembly intermediates of cytochrome b (Cytb), a central subunit of complex III. The predicted structure of the first assembly intermediate suggests how the binding of Cytb to the assembly factor Cbp3‐Cbp6 imposes an open configuration to facilitate the a… Show more
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