title: Electrophoretic separation of large proteoglycans in large-pore polyacrylamide gradient gels (1.32-10.0% T) and a one-step procedure for simultaneous staining of proteins and proteoglycans.
abstract: A procedure is described for the preparation of 1.32-10% polyacrylamide gradient gels. Loose polyacrylamide gel on the top side of the gradient was stabilized with a layer of 0.4% agarose gel which also formed sample wells. The upper limit of separation achieved in these gels was estimated to be approximately 2 X 10(6) using globular protein standards. However, large aggregating proteoglycans from cartilage which have a molecular weight range of 1-4 X 10(6) penetrate and separate in these gels. A simple one-step procedure is also described for simultaneous staining of proteins and large proteoglycans in polyacrylamide gels.
authors.affiliation: Institute of Rheumatology, Prague, Czechoslovakia.
authors.forename: V
authors.initials: V
authors.lastname: Vilim
authors.forename: J
authors.initials: J
authors.lastname: Krajickova
mesh_terms: D000818:Animals; D002417:Cattle; D004591:Electrophoresis, Polyacrylamide Gel / Q000379:methods*; D005069:Evaluation Studies as Topic; D006801:Humans; D008970:Molecular Weight; D011506:Proteins / Q000302:isolation & purification; D011509:Proteoglycans / Q000302:isolation & purification*; D013194:Staining and Labeling / Q000379:methods*
chemical_list: D011506:Proteins; D011509:Proteoglycans