書誌事項
- タイトル別名
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- A New Analytical Method for Glycoprotein Structure Analysis Using MALDI-QIT-TOFMS: An Application to Ribonuclease B
- MALDI-QIT-TOFMSを用いた糖タンパク質の新規構造解析手法:リボヌクレアーゼBへの適用
- MALDI QIT TOFMS オ モチイタ トウ タンパクシツ ノ シンキ コウゾウ カイセキ シュホウ リボヌクレアーゼ B エ ノ テキヨウ
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抄録
Mass spectrometry (MS) is becoming an indispensable analytical tool for glycoproteomics, that is, for the analysis of glycan and protein structures of glycoproteins. While a simple and rapid MS method which can minimize troublesome procedures for sample preparation is desired, a single mass spectrometer to meet this demand has not been realized to date. We report here a procedure for the structure analysis of Ribonuclease B (RNase B) using the MS and MSn analyses of protonated ions ([M+H]+) and sodium-adducted ions ([M+Na]+) by a single MALDI-QIT-TOFMS. Five peaks were identified as a glycopeptide in mass spectra with 2,5-dihydroxybenzoic acid (DHBA) as a matrix for RNase B digests by Lysyl endopeptidase (Lys C) without desalting. All of the five [M+H]+ peaks were accompanied by [M+Na]+ peaks. The same fragment peaks were observed in low mass area of all MS/MS spectrum for each [M+H]+ or [M+Na]+ species. MSn analyses using [M+H]+ as a precursor ion provided the information of peptide sequence and glycosylation site, while fragments from [M+Na]+ showed oligosaccharide sequence. Finally, this technique using [M+H]+ and [M+Na]+ with MALDI-QIT-TOFMS realized an easy and high-throughput implementation of glycoprotein structure analyses.
収録刊行物
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- 質量分析
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質量分析 52 (6), 328-338, 2004
一般社団法人 日本質量分析学会
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詳細情報 詳細情報について
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- CRID
- 1390001206492500480
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- NII論文ID
- 10014240311
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- NII書誌ID
- AN0010555X
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- COI
- 1:CAS:528:DC%2BD2MXpslGmtA%3D%3D
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- ISSN
- 18804225
- 18843271
- 13408097
- http://id.crossref.org/issn/13408097
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- NDL書誌ID
- 7191322
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可