The protocol described in this protocol has been used principally for analyzing the Golgi, endoplasmic reticulum and trans-Golgi network but markers for other compartments (e.g.
ERGIC and endosomes) have also been analyzed. Modifications either to the gradient density range or the centrifugation conditions influence the ability of the gradient to resolve multiple compartments. - [Read Fractionation of Golgi, ER, TGN and Other Membrane Compartments in Pre-Formed Iodixanol Gradients]
Protocol for in vitro endoplasmic reticulum to golgi transport reaction in Yeast. Includes: Preparation of Membranes; One-Stage Reaction; Two-Stage Reaction using Normal Amount of Membranes; Two-Stage Reaction using Low Concentration of Membranes. - [Read In Vitro Endoplasmic Reticulum to Golgi Transport Reaction in Yeast Protocol]
This protocol describes the isolation of microsomal Endoplasmic Reticulum (ER) membranes from yeast cells. Includes: Spheroplast Formation and Microsome Purification. - [Read Microsome Preparation from Yeast Cells Protocol]
Peroxisomes can be purified in iodixanol gradients in high yield (80-90%) with no detectable contamination from any other organelle. This is a property unique to iodixanol because the
densities of other organelles, particularly that of mitochondria (approx ρ = 1.14 g/ml) and endoplasmic reticulum (approx ρ = 1.13 g/ml) are much lower than that of peroxisomes (approx ρ = 1.18 g/ml). - [Read Purification of Peroxisomes using a Density Barrier in a Swinging-Bucket Rotor]