ISSN:
0173-0835
Keywords:
Chemistry
;
Biochemistry and Biotechnology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Chemistry and Pharmacology
Notes:
The polypeptide patterns obtained from individual caryopses (kernels) of two wheat cultivars were analyzed using high resolution two-dimensional polyacrylamide gel electrophoresis (2-D PAGE) methods. While few polypeptides were detected with Coomassie Blue staining methods, over two hundred peptides were easily distinguished with the color-based silver stain. The relative isoelectric points of the constituent polypeptides ranged from pH 3.8 to 9 and the relative molecular weights from 5000 to 200 000. The majority of the proteins of the two wheat varieties analyzed with 2-D PAGE were similar although distinct proteins having molecular weights of 23 000, 30 000, 37 000 and 70 000 were identified, which have molecular properties unique to each variety. The use of the color-based silver stain makes it possible to identify and characterize hundreds of proteins in individual wheat seeds. These methods are, therefore, adaptable for the rapid analysis and characterization of specific gene products of single kernels of wheat.
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/elps.1150060110
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