Journal
ACTA PHYSIOLOGIAE PLANTARUM
Volume 33, Issue 5, Pages 1623-1630Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11738-010-0697-1
Keywords
Chinese fir seeds; Extraction method; Two-dimensional electrophoresis; LC MS/MS
Categories
Funding
- National Natural Science Foundation of China [31000287, 30930077]
- Natural Science Foundation of Higher Education of Jiangsu Province [10KJB220002]
Ask authors/readers for more resources
In this study, three methods of protein extraction from the seeds of the Chinese fir were compared by examining the quality (including the number of protein spots observed) in the two-dimensional gel electrophoresis (2-DE), obtained by isoelectric focusing and sodium dodecyl sulfate polyacrylamide gel electrophoresis of the total released protein. Three protein extraction methods were: TCA-acetone precipitation, SDS extraction/acetone precipitation, and phenol extraction methanol/ammonium acetate precipitation. The results showed that TCA-acetone precipitation was the most effective method for protein extraction; it gave the highest yield of total protein (8.9 mg protein per g seed weight) and the greatest number of proteins spots (1,034 spots) on the 2-DE gel. Further, several proteins were identified by liquid chromatography mass spectrometry (LC MS/MS), which are legumin-like storage protein, similar to AMP binding/acetate-CoA ligase, similar to 40S ribosomal protein S20, actin, ascorbate peroxidase, Similar to cysteine synthase, and unknown protein. These data demonstrates that TCA-acetone precipitation followed by 2-DE and LC MS/MS is a suitable method for proteomic analysis of coniferous species, such as Chinese fir and provides a valuable starting point for similar proteomic analysis of other coniferous tree species.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available