We developed an automated glycopeptide enrichment method for the analysis of serum site-specific N-glycoproteome. This automated method allowed for processing one sample within 20 min. It showed higher enrichment specificity, more intact glycopeptide identifications, and better quantitative reproduc...
The heterogeneity and low abundance of protein glycosylation present challenging barriers to the analysis of intact glycopeptides, which is key to comprehensively understanding the role of glycosylation in an organism. Efficient and specific enrichment of intact glycopeptides could help greatly with...
We have compared three different glycopeptide enrichment techniques (SAX-ERLIC, HILIC, and lectin affinity) and a C18 control to a tryptic digest of proteins from depleted human plasma.
Mass spectrometry is the premier tool for identifying and quantifying site-specific protein glycosylation globally. Analysis of intact glycopeptides often requires an enrichment step, after which the samples remain highly complex and exhibit a broad dynamic range of abundance. Here, we evaluated th...
Glycoproteins isolated from elongating cotton fiber cells were analyzed using 2D-PAGE followed by MALDI TOF/TOF based protein identification. Protein isoforms were identified using Tandem mass spectrometry. Lectin based Glycopeptide enrichment strategy followed by PNGase catalyzed deglycosylation re...
In this study, we conducted a systematic investigation into a glycoproteomic workflow. Firstly, Label-free and TMT labeling strategies were utilized for intact N-glycopeptide quantification. A total of 2,924 unique intact N-glycopeptides can be quantified after being labeled using TMT approach. Comp...
ORGANISM(S): Homo sapiens (Human) Mus musculus (Mouse)
Aberrant glycosylation has been linked to many different cancer types. The blood brain barrier (BBB) is a region of the brain that regulates the entrance of ions, diseases, toxins, etc. However in breast cancer metastasis, the BBB fails to prevent the crossing of the cancer cells into the brain. Her...
Glycosylation of proteins is one of the most common post-translational modification (PTM) and plays important regulatory functions in diverse biological processes such as protein stability or cell signaling. Accordingly, glycoproteins are also a consistent part of the human tear film proteome mainta...
ORGANISM(S): Homo sapiens (Human) Sus scrofa domesticus (domestic pig)
Large-scale identification of N-linked intact glycopeptides by liquid chromatography coupled tandem mass spectrometry (LC-MS/MS) in human serum is challenging due to the wide dynamic range of serum protein abundances, the lack of a complete serum N-Glycan database and the existence of non-specifical...
ORGANISM(S): Armoracia rusticana Homo sapiens (Human) Gallus gallus (Chicken)
