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The PduL Phosphotransacylase Is Used To Recycle Coenzyme A within the Pdu Microcompartment.

J. Bacteriol.. 2015; 
LiuYu,JordaJulien,YeatesTodd O,BobikThom
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摘要

In Salmonella enterica, 1,2-propanediol (1,2-PD) utilization (Pdu) is mediated by a bacterial microcompartment (MCP). The Pdu MCP consists of a multiprotein shell that encapsulates enzymes and cofactors for 1,2-PD catabolism, and its role is to sequester a reactive intermediate (propionaldehyde) to minimize cellular toxicity and DNA damage. For the Pdu MCP to function, the enzymes encapsulated within must be provided with a steady supply of substrates and cofactors. In the present study, Western blotting assays were used to demonstrate that the PduL phosphotransacylase is a component of the Pdu MCP. We also show that the N-terminal 20-residue-long peptide of PduL is necessary and sufficient for ta... More

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