Reference: van Roermund CWT, et al. (2021) The Saccharomyces cerevisiae ABC subfamily D transporter Pxa1/Pxa2p co-imports CoASH into the peroxisome. FEBS Lett 595(6):763-772

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Abstract


ATP-binding cassette (ABC) subfamily D transporters are important for the uptake of fatty acids and other beta-oxidation substrates into peroxisomes. Genetic and biochemical evidence indicates that the transporters accept fatty acyl-coenzyme A that is cleaved during the transport cycle and then re-esterified in the peroxisomal lumen. However, it is not known whether free coenzyme A (CoA) is released inside or outside the peroxisome. Here we have used Saccharomyces cerevisiae and isolated peroxisomes to demonstrate that free CoA is released in the peroxisomal lumen. Thus, ABC subfamily D transporter provide an import pathway for free CoA that controls peroxisomal CoA homeostasis and tunes metabolism according to the cell's demands.

Reference Type
Journal Article | Research Support, Non-U.S. Gov't
Authors
van Roermund CWT, IJlst L, Baker A, Wanders RJA, Theodoulou FL, Waterham HR
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