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Organellar DNA Synthesis in Permeabilized Soybean Cells

Organellar DNA Synthesis in Permeabilized Soybean Cells

G C Cannon, S Heinhorst, A Weissbach

Plant Mol Biol. 1986 Sep;7(5):331-41.

PMID: 24302403

Abstract:

Cultured cells of Glycine max (L.) Merr. v. Corsoy were permeabilized by treatment with L-α-lysophosphatidylcholine (LPC). The permeabilized cells were capable of uptake and incorporation of deoxynucleoside triphosphates into DNA. Incorporation of exogenous nucleotides into DNA was linear for at least 90 minutes and the initial rate of incorporation approached 50% of the theoretical in vivo rate of DNA synthesis. However, DNA synthesis in the permeabilized cells was unaffected by the potent DNA polymerase α inhibitor, aphidicolin. Analysis of newly synthesized DNA by molecular hybridization revealed that only organellar DNA was synthesized by the permeabilized cells. The LPC treated cells were also permeable to a protein as large as DNase I. The permeabilized cells were capable of RNA and protein synthesis as indicated by incorporation of radiolabeled UTP and leucine, respectively, into acid-precipitable material.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP9008304-E	L-α-Lysophosphatidylcholine from Glycine max (soybean)		9008-30-4	Price

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