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Protein Detection

Sigma-Aldrich offers a variety of products for protein extraction and detection.

Antibodies and Conjugates
Antibody-drug conjugates offer targeted therapy for cancer and other diseases. An antibody (or antibody fragment) is linked to an isotope, drug, or toxin. The antibody helps the drug enter target cells.

Protein Staining Reagents
Gel electrophoresis is a method for analyzing DNA, RNA, and protein samples. Sigma-Aldrich offers protein-selective staining kits and reagents for a variety of uses.

Streptavidin Reagents
Streptavidin is a protein that bonds with biotin. It is a form of avidin produced by the bacterium Streptomyces avidinii. Streptavidin and avidin are second-step reagents for staining, purification, or detection of various biomolecules.

Western Blotting Reagents
The Western Blot is an analytical technique for the detection of specific proteins in a sample of tissue. After proteins are separated, they are detected by antibodies specific to that protein. Sigma-Aldrich Western Blotting products offer optimal detection of your protein.