We examined the different steps necessary for the enzymatic digestion of proteins in the polyacrylamide matrix after gel electrophoresis. As a result, we developed an improved method for obtaining peptides for internal sequence analysis from 1-2 micrograms of in-gel-digested proteins. The long washi
Two-dimensional gel electrophoresis of proteins for genetic studies in douglas fir (Pseudotsuga menziesii)
✍ Scribed by Nasser Bahrman; Dominique Vienne; Hervé Thiellement; Jean-Paul Hofmann
- Publisher
- Springer
- Year
- 1985
- Tongue
- English
- Weight
- 429 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0006-2928
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✦ Synopsis
A method of two-dimensional gel electrophoresis of proteins from Douglas fir needles is described. Extraction in the presence of sodium dodecyl sulfate (SDS) and 2-mercaptoethanol followed by heating at 100 degrees C produces reliable two-dimensional gels which are convenient for genetic studies. Three genotypes from different geographical origins have been compared: among 225 loci expressed, 22 display regulatory variations and 7 show allelic variations. Thus it is now possible to undertake the genetic study of Douglas fir using this powerful technique.
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