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Graphene-based materials might serve as an ideal platform for the regulation and promotion of metalloprotein electron transfer (ET); however, the underpinning mechanism at the molecular level has not yet been fully revealed. The orientation of cytochrome c (Cyt c) on surfaces is vital for ET. In this work, the orientation of Cyt c on graphene and graphene oxide (GO) surfaces, as well as the dominant...
The fragment of viral protein R (Vpr), Vpr13-33, plays an important role in regulating nuclear importing of HIV genes through channel formation in which it adopts a leucine-zipper-like alpha-helical conformation. A recent experimental study reported that helical Vpr13-33 would transform to β-sheet or random coil structures and aggregate on the surface of graphene or graphene oxide through hydrophobic...
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