Abstract:
:Separation of proteins by two-dimensional electrophoresis and following mass spectrometry (MS) is now a conventional technique for proteomic analysis. For proteomic analysis of a certain tissue with a limited information of primary structures of proteins, we have developed an analytical system for peptide mass fingerprinting in gene products in the testis of the ascidian Ciona intestinalis. Ciona sperm proteins were separated by two-dimensional gel electrophoresis and the tryptic fragments were subjected to MALDI-TOF/MS. The mass pattern was searched against on-line databases but resulted in less identification of these proteins. We have constructed a MS database from Ciona testis ESTs and the genome draft sequence, along with a newly devised, perl-based search program PerMS for peptide mass fingerprinting. This system could identify more than 80% of Ciona sperm proteins, suggesting that it could be widely applied for proteomic analysis for a limited tissue with less genomic information.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Hozumi A,Satouh Y,Ishibe D,Kaizu M,Konno A,Ushimaru Y,Toda T,Inaba Kdoi
10.1016/j.bbrc.2004.05.118subject
Has Abstractpub_date
2004-07-09 00:00:00pages
1241-6issue
4eissn
0006-291Xissn
1090-2104pii
S0006291X04011283journal_volume
319pub_type
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