Equal aliquots of lysates were incubated with bead-bound GST-PBD for 1 hr at 4°C with constant tumbling.
GST-FZD7-CT and GST-PBD constructs were immobilized on glutathione-Sepharose beads directly from bacterial lysates by overnight incubation at 4°C with constant tumbling.
Next morning, GST-FZD7-CT immobilized on glutathione beads were washed and subsequently incubated with His-tagged Daple-CT or Gαi3 proteins at 4°C with constant tumbling.
Aliquots of bacterial lysates were thawed, cleared of precipitated proteins by centrifugation at 14,000× g for 20 min, and the cleared supernatant was subsequently incubated with glutathione beads overnight at 4°C with constant tumbling to prepare purified bead-bound GST-PBD freshly for each assay.
Lysates (∼250 µg) of Cos7 cells expressing appropriate myc-Daple constructs or purified His-Daple-CT (aa 1650 2028) protein (3 µg) were added to each tube, and binding reactions were carried out for 4 hr at 4°C with constant tumbling in binding buffer (50 mM Tris-HCl [pH 7.4], 100 mM NaCl, 0.4% [vol:vol] Nonidet P-40, 10 mM MgCl2, 5 mM EDTA, 30 µM GDP, 2 mM DTT).
The cast of this alternately snarky and sentimental show about rival high school cheer squads often seems to be in constant motion, tumbling and flipping across the stage in elaborate routines that culminate in towering formations of human pyramids.
Constant combing and tumbling of the sand and rocks makes it impossible for marine fauna to get a hold.
He would, they argued, struggle to live with his own kind having spent his first months with his carer, Thomas Dörflein, who strums Elvis Presley's Devil in Disguise on his guitar at Knut's bedtime and has been left covered in cuts and bruises from his constant rough and tumble with the cub.
In a rare interview with reporters, the villagers told the Associated Press that it's too difficult to ship farm products on roads so rough and close to the sky that cars are in constant danger of tumbling off the single-lane dirt roads that zigzag up to the fields.
-- The 1960's infamous domino theory was raised from the grave not only in the 1980's to frighten Americans into tacit support for America's wars in Central America, but then again in regards to the 1991 model of Saddam, never mind the near-constant invocations of tumbling playing pieces as al Qaeda and/or ISIS seeks world domination.
