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Felicity Alcock

Researcher at University of Oxford

Publications -  25
Citations -  749

Felicity Alcock is an academic researcher from University of Oxford. The author has contributed to research in topics: Twin-arginine translocation pathway & Translocase. The author has an hindex of 15, co-authored 22 publications receiving 649 citations. Previous affiliations of Felicity Alcock include University of Manchester & Newcastle University.

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Conserved Motifs Reveal Details of Ancestry and Structure in the Small TIM Chaperones of the Mitochondrial Intermembrane Space

TL;DR: It is shown that no "Tim12" family of proteins exist, but rather that variant forms of the cognate small TIMs have been recently duplicated and modified to provide new functions: the yeast Tim12 is a modified form of Tim10, whereas in humans and some protists variant formsof Tim9, Tim8, and Tim13 are found instead.
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Live cell imaging shows reversible assembly of the TatA component of the twin-arginine protein transport system

TL;DR: Direct imaging of fluorescent protein-tagged Tat components in bacterial cells is used to show that the TatA element of the Tat system undergoes substrate- and proton motive force-dependent oligomerization, suggesting that TatA assembly reaches a critical point at which oligomersization can be reversed only by substrate transport.
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Minor modifications and major adaptations: The evolution of molecular machines driving mitochondrial protein import ☆

TL;DR: Comparative analysis of these systems is revealing both possible routes for the evolution of the mitochondrial membrane translocases and a greater understanding of the mechanisms behind mitochondrial protein import.
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The Structural Basis of the TIM10 Chaperone Assembly

TL;DR: NMR data here demonstrates unequivocally that only the oxidized states of the Tim9 and Tim10 proteins are capable of forming a complex and provides an explanation for the escorting function of this non-ATP-powered chaperone particle.
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Assembling the Tat protein translocase

TL;DR: This work combines sequence co-evolution analysis, molecular simulations, and experimentation to define the interactions between the Tat proteins of Escherichia coli at molecular-level resolution and finds that TatA also associates with TatC at the polar cluster site.