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Related Concept Videos

Affinity Chromatography01:03

Affinity Chromatography

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Affinity chromatography is a powerful technique extensively utilized for separating and purifying specific biomolecules from complex mixtures. It capitalizes on the highly selective binding between an analyte and its counterpart, such as antibody-antigen interactions. The counterpart is immobilized on the stationary phase, forming an affinity column. The stationary phase typically consists of solid support, such as agarose or porous glass beads, immobilizing the affinity ligand. The mobile...
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Peptide Identification Using Tandem Mass Spectrometry01:33

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Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
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Related Experiment Video

Updated: Jun 3, 2025

Characterization of Proteins by Size-Exclusion Chromatography Coupled to Multi-Angle Light Scattering SEC-MALS
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Leveraging prior knowledge for process parameter classification in mAb Protein A chromatography.

Yinying Tao1, Adam Rauk1, Jinxin Gao1

  • 1Eli Lilly and Company, Indianapolis, IN 46285, USA.

Journal of Chromatography. A
|January 9, 2025
PubMed
Summary
This summary is machine-generated.

Leveraging extensive prior knowledge in Protein A chromatography allows for streamlined purification of monoclonal antibodies (mAbs). This approach confirms process parameters do not significantly impact critical quality attributes, reducing the need for extensive product-specific studies.

Keywords:
AntibodyBayesian statisticsPrior knowledgeProcess parameter characterizationProtein A chromatography

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Area of Science:

  • Biopharmaceutical Manufacturing
  • Chromatography
  • Antibody Purification

Background:

  • Protein A (ProA) affinity chromatography is crucial for purifying monoclonal antibodies (mAbs).
  • Extensive prior knowledge exists for ProA processes from decades of mAb development.
  • This knowledge facilitates streamlined process development and minimizes extensive characterization.

Purpose of the Study:

  • To present a comprehensive prior knowledge package for Protein A chromatography.
  • To consolidate process parameter characterization data from ten molecules.
  • To demonstrate the effectiveness of leveraging historical data for new therapeutic antibodies.

Main Methods:

  • Consolidated process parameter characterization data from ten molecules.
  • Conducted multiple Design of Experiment (DOE) studies.
  • Applied a Bayesian hierarchical model to analyze historical data.

Main Results:

  • No significant impact of process parameters on critical quality attributes within platform ranges was observed.
  • Bayesian modeling confirmed insignificant parameter effects across ProA platform ranges.
  • Historical data package supported classification of ProA process parameters for new antibodies.

Conclusions:

  • Leveraging a prior knowledge package for Protein A chromatography streamlines process development.
  • Product-specific process characterization can be replaced by utilizing historical data.
  • This approach has received positive reception from global regulatory agencies.