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PO0007 Automated Protein Purification using Hamilton® Microlab STAR with Various WetResins to Achieve Miniaturized Laboratory Workflow with High Consistencies
来源:IMCS | 作者:Matthew Manter, Caleb Schlacter, Todd Mullis, Sunil Hwang, Nikki Sitasuwan, L. Andrew Lee* | 发布时间: 2059天前 | 2535 次浏览 | 分享到:
Dispersive pipette extraction is a patented micro-extraction platform that leverages turbulent mixing within the pipette tip toincrease interaction time between the loose resin and the liquid sample. Coupling this core technology to the highly flexible,automated liquid handling system – Hamilton Robotics – enables rapid enrichment of antibodies, recombinant proteins andvarious other tagged proteins in a consistent manner. Unlike the traditional chromatography columns which rely on fixedbeds, dispersive pipettes contain loose resin with a large void between the two porous filters. Here, we demonstrate theflexibility of the micro-extraction platform on Hamilton STAR to purify milligram scale antibodies from 1 mL aliquots, as wellas purification of his-tagged recombinant proteins from micro-cultures in 96 well format. The “ready to go” workflows provideeluted proteins that are processed through high throughput buffer exchange on the liquid handling platform to ensure a fullyautomated laboratory process starting from crude samples to purified and buffered samples.
The automated workflows are generic templates for several different INtip chemistries to purify different types of targets,ranging from tagged recombinant proteins to immunoglobulins followed by buffer exchange using SizeX IMCStips™. IMCStipsare available with different affinity resins (Ni-IMAC for his-tagged proteins, Protein A/G for immunoglobulins, streptavidin
for biotinylated targets) to target the specific protein of interest. The deck layout shown here is one of the generic templatesas “ready to go” workflows for affinity purification on Hamilton Microlab STAR. The options in the graphical user interfacecan provide optimized workflow along with flexibility for maximum recoveries versus a rapid purification workflow for quickqualitative analysis. Ultimately, this automated workflow provides consistency, but still some added flexibility to alter theworkflows (aspirate/dispense cycles) and wash steps to customize each workflow for specific targets.


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