Capillary isoelectric focusing with pH 9.7 cathode for the analysis of gastric biopsies

Capillary Isoelectric Focusing

Beale SC (1998) Capillary electrophoresis. Analytical Chemistry 70: 279. (This journal prints every two years a review on capillary electrophoresis. The article is written by an expert in the Reld and covers more or less all developments in CE including CGE of the preceding years.) Grossmann PD and Colburn JC (eds) (1996) Capillary Electrophoresis: Theory and Practice. San Diego: Academic Press...

Imaged Capillary Isoelectric Focusing for Charge-Variant Analysis of Biopharmaceuticals

level: interMediAte Analyzing charge variants of therapeutic proteins is critical for characterizing and monitoring quality attributes of antibodies. Charge variants include deamidation, formation of N-terminal pyroglutamate, aggregation, isomerization, sialylated glycans, antibody fragmentation, and glycation at the lysine residues. In some cases, such changes affect binding, biological activi...

Monoclonal Antibody Charge Heterogeneity Analysis by Capillary Isoelectric Focusing on the Agilent 7100 Capillary Electrophoresis System

Due to the importance of monoclonal antibodies (mAb) as therapeutic agents, there is a growing demand for high resolution analytical methods to characterize these complex molecules. One important property of an mAb is its charge state that may change during and after manufacturing. A very useful technique to measure mAb charge heterogeneity is capillary isoelectric focusing (cIEF). This Applica...

Optimizing Conditions for Capillary Isoelectric Focusing Separations Using

Capillary Isoelectric Focusing Immunoassay for Fat Cell Differentiation Proteomics

Profiling cellular proteome is critical to understanding signal integration during cell fate determination. In this study, the capability of capillary isoelectric focusing (cIEF) immunoassays to detect post-translational modifications (PTM) of protein isoforms is demonstrated. cIEF immunoassays exhibit protein detection sensitivity at up to 5 orders of magnitude higher than traditional methods....