Differential Effect of Urea on the Migration of Collagenous and Non-Collagenous Polypeptides in SDS Gels: Basis for their Separation by Two-dimensional Electrophoresis

Academic Article


  • The α1(I), α2, and α1(III) collagen chains are retarded in urea-SDS gels relative to their migration in SDS gels without urea (Hayashi and Nagai, 1979). This effect of urea provides the rationale for the two-dimensional separation of collagenous from non-collagenous polypeptides by two-dimensional electrophoresis consisting of urea-SDS in one dimension and SDS alone in the other dimension. In this system, non-collagenous polypeptides align themselves diagonally across the separation plane while each class of α chain with its homologous crosslinked components, forms a separate and distinct alignment at an angle to the central diagonal. © 1981, Gustav Fischer Verlag, Stuttgart/New York. All rights reserved.
  • Authors

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    Author List

  • Duhamel RC; Meezan E; Brendel K
  • Start Page

  • 201
  • End Page

  • 207
  • Volume

  • 1
  • Issue

  • 2