Cleavage Phase (During Processing) Buffer exchange first: Move from elution buffer to cleavage buffer Never assume elution conditions are compatible Start with pilot experiments: Small scale (100 g) Time course (1h, 2h, 4h, 16h) Multiple protease ratios (1:50, 1:100, 1:200) Monitor by SDS-PAGE: Look for: Band shift, new bands, loss of material Quantify cleavage efficiency Scale up conservatively: Optimal conditions at small scale may not translate directly Verify at each scale Post-Cleavage Phase (Cleanup) Remove uncleaved protein: Subtractive affinity (if cleaved protein doesn't bind) Ion exchange (if charge difference sufficient) Size exclusion (if size difference sufficient) Remove protease: Use orthogonally-tagged protease Or: Accept co-purification if protease doesn't interfere Verify final product: SDS-PAGE: Single band
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Oil-Based Oil-based paints (Alkyd) are mixed using a variety of different oils, Linseed oil, soya oils, and tung oil to name a few
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This is a great option for first-time smokers as it can be done without any additional equipment
19801988: Revival and Traveling Wilburys [edit] In 1980, Don McLean recorded a cover of Orbison's 1961 hit single "Crying" [15] and it went to the top of the charts, first in the Netherlands then reaching number five in the US and staying on the charts for 15 weeks
