Detailed Information on Publication Record
2016
Differential Isotope Labeling of Glycopeptides for Accurate Determination of Differences in Site-Specific Glycosylation
PABST, Martin, Iva BENEŠOVÁ, Stephan R FAGERER, Mathias JACOBSEN, Klaus EYER et. al.Basic information
Original name
Differential Isotope Labeling of Glycopeptides for Accurate Determination of Differences in Site-Specific Glycosylation
Authors
PABST, Martin (40 Austria), Iva BENEŠOVÁ (203 Czech Republic, belonging to the institution), Stephan R FAGERER (276 Germany), Mathias JACOBSEN (756 Switzerland), Klaus EYER (756 Switzerland), Gregor SCHMIDT (756 Switzerland), Robert STEINHOFF (276 Germany), Jasmin KRISMER (756 Switzerland), Fabian WAHL (756 Switzerland), Jan PREISLER (203 Czech Republic, guarantor, belonging to the institution) and Renato ZENOBI (756 Switzerland)
Edition
Journal of Proteome Research, Washington, American Chemical Society, 2016, 1535-3893
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10406 Analytical chemistry
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 4.268
RIV identification code
RIV/00216224:14310/16:00093930
Organization unit
Faculty of Science
UT WoS
000367706000026
Keywords in English
glycopeptides; stable isotope labeling; IgG; MALDI MS; LC-ESI-MS
Tags
International impact, Reviewed
Změněno: 15/2/2018 22:03, prof. Mgr. Jan Preisler, Ph.D.
Abstract
V originále
We introduce a stable isotope labeling approach for glycopeptides that allows a specific glycosylation site in a protein to be quantitatively evaluated using mass spectrometry. Succinic anhydride is used to specifically label primary amino groups of the peptide portion of the glycopeptides. The heavy form ((D4C4)-C-13) provides an 8 Da mass increment over the light natural form ((H4C4)-C-12), allowing simultaneous analysis and direct comparison of two glycopeptide profiles in a single MS scan. We have optimized a protocol for an in-solution trypsin digestion, a one-pot labeling procedure, and a post-labeling solid-phase extraction to obtain purified and labeled glycopeptides. We provide the first demonstration of this approach by comparing IgGI Pc glycopeptides from polyclonal IgG samples with respect to their galactosylation and sialylation patterns using MALDI MS and LC-ESI-MS.
Links
ED1.1.00/02.0068, research and development project |
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EE2.3.30.0009, research and development project |
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