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In the process of cell culture in vitro, we usually find that the cells show signs of aging, which is that the passed cells are unable to stick to the wall. Experience tells us that the time it takes for trypsin to digest the adherent cells is important. If the digestion time is too short, enough ce...
ORGANISM(S): Homo sapiens 
All shotgun proteomics experiments rely on efficient proteolysis steps for sensitive peptide/protein identification and quantification. Continuous protocol improvement is therefore a constant topic in proteomics research. Previous reports suggest that the sequential tandem LysC/trypsin digest yields...
ORGANISM(S): Escherichia coli Bacteria 
2020-04-30 | PXD013273 | Pride
Bottom-up proteomics approach has become an important strategy in diverse areas of biological research, and the enzymatic digestion is essential for this technology. Endopeptidase Arg-C catalyzing the hydrolytic cleavage of peptide bonds C-terminal to arginine could be an important protease in botto...
ORGANISM(S): Homo sapiens (Human) Escherichia coli 
2018-01-04 | PXD007994 | Pride
Immunoprecipitation-mass spectrometry (IP-MS) has become the method of choice for discovering protein-protein interaction (PPI) under native conditions. The success of the IP-MS depends on the efficiency of trypsin digestion and recovery of the tryptic peptides for MS analysis. Several different pro...
ORGANISM(S): Arabidopsis thaliana (Mouse-ear cress) Homo sapiens (Human) 
2017-07-25 | PXD005984 | Pride
Trypsin is frequently employed to cleave proteins ahead of mass spectrometry characterization. Traditionally, enzyme digestion involves overnight incubation of proteins at 37 °C, which is not only time consuming but can still yield in poor digestion efficiency. While raising the temperature should t...
ORGANISM(S): Saccharomyces cerevisiae (Baker's yeast) Bacteria 
2023-03-11 | PXD035682 | Pride
Immunoprecipitation-mass spectrometry (IP-MS) has become the method of choice for discovering protein-protein interaction (PPI) under native conditions. The success of the IP-MS depends on the efficiency of trypsin digestion and recovery of the tryptic peptides for MS analysis. Several different pro...
ORGANISM(S): Homo sapiens (Human) 
2017-07-26 | PXD006739 | Pride
High specificity and ease of use make trypsin the most used enzyme in proteomics. Proteases with complementary cleavage specificity to trypsin have been applied to obtain additional data. However, use of proteases with broad specificity proved especially challenging. In this work, we analyzed the ch...
ORGANISM(S): Schizosaccharomyces pombe OY26 
2021-06-07 | PXD017321 | Pride
Mass spectrometry-based proteomics supports investigation into diverse biological systems, providing insights into regulation, signaling, modifications, and interactions. Optimized sample preparation is critical to ensure robust and reproducible analyses balanced with time and cost. In this article,...
ORGANISM(S): Cryptococcus neoformans var. grubii serotype A (strain H99 / ATCC 208821 / CBS 10515 / FGSC 9487) (Filobasidiella neoformans var. grubii) 
2024-10-12 | PXD056755 | Pride
Host cell protein (HCP) impurities are considered a critical quality attribute of biopharmaceuticals because of their potential to compromise safety and efficacy, and LC/MS-based analytical methods have been developed to identify and quantify individual proteins instead of employing enzyme-linked im...
ORGANISM(S): Cricetulus Griseus 
This work comprehensively compared 50 mM of ammonium acetate (pH 6), Tris-HCl (pH 8), ABC and TEAB as in-solution trypsin digestion buffers. Both iTRAQ quantification and label-free results indicate that ammonium acetate (pH 6) is more suitable than other buffers for studying endogenous deamidation ...
ORGANISM(S): Rattus norvegicus (Rat) 
2022-02-28 | PXD001650 | Pride
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