Rapid and Facile Purification of Apolipoprotein A-I from Human Plasma Using Thermoresponsive Nanoparticles

نویسندگان

  • Martin Lundqvist
  • Tord Berggård
  • Erik Hellstrand
  • Iseult Lynch
  • Kenneth A. Dawson
  • Sara Linse
  • Tommy Cedervall
چکیده

Nanoparticles can be used to purify proteins from plasma. We report here the purification of apolipoprotein A-I (apoA-I) with high specificity from human plasma using copolymeric nanoparticles. We present an optimized protocol using 50:50 NiPAM:BAM copolymer nanoparticles with thermo-responsive properties as an affinity resin. Repeated pelleting and washing of nanoparticle-captured apoA-I is achieved through temperature cycling. The protein is then eluted using urea followed by an ion exchange step for protein concentration and depletion of nanoparticles.

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تاریخ انتشار 2011