This product contains sodium azide as preservative. Although the amount of sodium azide is very small appropriate care must be taken when handling this product.
General Information
Biological Significance
A polyhistidine-tag is an amino acid motif in proteins that consists of at least five histidine (His) residues, often at the N- or C-terminus of the protein. Polyhistidine-tags are often used for affinity purification of polyhistidine-tagged recombinant proteins expressed in Escherichia coli and other prokaryotic expression systems.