Western blotting

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Explore antibody validation, including antibody and target, species validation, lot validation, application validation, storage and handling, citations, and quality control, in detail.

An Introduction to Antibodies: Antigens, Epitopes and Antibodies

Antibodies combine with specific antigens to generate an exclusive antibody-antigen complex. Learn about the nature of this bond and its use as a molecular tag for research.

Antibody Generation | Monoclonal vs Polyclonal Antibodies

Learn differences in monoclonal vs polyclonal antibodies including how antibodies are generated, clone numbers, and antibody formats.

Secondary Antibodies, Conjugates, and Kits

Technical Support for Secondary Antibodies, Conjugates, and Kits

Protein Staining Reagents Selection Guide

Sigma offers EZBlue™ and ProteoSilver™ reagents for protein visualization, suitable for proteomics and traditional PAGE formats.

Sample Prep & Gel Electrophoresis Troubleshooting

Identify causes and remedies for SDS-PAGE sample preparation challenges and optimize electrophoresis conditions.

Antibody Enhanced-Validation Strategies

Antibody enhanced validation provides additional data to help ensure antibody specificity and performance and to address antibody reproducibility crisis.

Identification of Proteins in Lipofuscin Using Antibodies within the Human Protein Atlas

Prestige Antibodies^® Organelle Markers

Confocal microscopy analyzes protein subcellular localization in human cell lines.

Prestige Antibodies®: The Cell Atlas

Cell Atlas displays protein distribution with immunofluorescent staining in diverse cell lines, aiding spatial protein visualization.

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