TEM of amyloid beta pyroglutamate 3-42 fibrils (catalog# SPR-492). Negative stain transmission electron microscopy images acquired at 80 Kv on carbon coated 400 mesh copper grids using phosphotungstic acid and uranyl acetate stain. Scale bar = 500, 200 and 100 nm (left to right). Method: Samples were prepared for examination in the transmission electron microscope using the ‘direct application method’ (Doane and Anderson 1987).
AFM of amyloid beta pyroglutamate 3-42 fibrils (catalog# SPR-492). Atomic force microscopy analysis of 1.0 mg/mL samples diluted to 0.1 mg/mL in 2% DMSO + 10 mM HCl, mounted on freshly cleaved mica, washed, dried and analyzed with tapping mode. Representative images are 10 x 10 µm x-y (left) and 5 x 5 µm x-y (middle) and 2 x 2 µm x-y (right), all with a z-range of 6 nm.
Western blot of amyloid beta pyroglutamate 3-42 fibrils (catalog# SPR-492) using anti-amyloid beta 6E10 antibody. Amyloid beta pyroglutamate 3-42 at 160 pmol was run on 4-12% Bis-Tris SDS-PAGE, transferred to nitrocellulose in the presence of 0.02% v/v Tween-20, and blotted with 1:1000 mouse 6E10 primary antibody (Biolegend). Compared to monomers re-suspended in 2% DMSO and immediately run on SDS-PAGE, fibrils show monomer depletion, a signal from 37 kDa upwards and a distinct signal in the stacking gel. MW ladder = Precision Plus Dual Xtra prestained standards.
Supplier Page from StressMarq Biosciences Inc for Amyloid Beta Pyroglutamate 3-42 Pre-formed Fibrils