Transfer of silver-stained proteins from polyacrylamide gels to polyvinylidene difluoride membranes.
We have developed a method to transfer proteins from a silver-stained polyacrylamide gel to a polyvinylidene difluoride (Immobilon-P) transfer membrane (Millipore, Bedford, MA). If the silver stained gels are rinsed in 2 x SDS Laemmli sample buffer prior to transfer, almost all proteins can be transferred comparably to non-stained controls. Some proteins stained with silver can be directly transfer, almost all proteins can be transferred comparably to non-stained controls. Some proteins stained with silver can be directly transferred to a single sheet of Immobilon-P without a prior rinse in sample buffer. Most important in the Western blot the antigenicity of the transferred protein is retained in either way. The method described is simple, inexpensive and versatile. A slight modification of the technique permits one to extract minor proteins, or detect their antigenic activities, without contamination of contiguous proteins.
Wise
G E
GE
Department of Anatomy and Cell Biology, Texas College of Osteopathic Medicine, Fort Worth.
Lin
F
F
D015153:Blotting, Western / Q000379:methods; D004591:Electrophoresis, Polyacrylamide Gel; D008567:Membranes, Artificial; D011145:Polyvinyls; D012834:Silver; D013194:Staining and Labeling / Q000379:methods; D005465:Fluorocarbon Polymers
D008567:Membranes, Artificial; D011145:Polyvinyls; D012834:Silver; C024865:polyvinylidene fluoride; D005465:Fluorocarbon Polymers