polyhistidine

polyhistidine
Several histidine residues linked together (usually at least six)

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  • Polyhistidine-tag — A polyhistidine tag is an amino acid motif in proteins that consists of at least six histidine ( His ) residues, often at the N or C terminus of the protein. It is also known as hexa histidine tag, 6xHis tag, and by the trademarked name His tag… …   Wikipedia

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  • his tag — (= histidine tag) Epitope tag based on a short stretch (ca 6) of histidine residues. In addition to detection with anti polyhistidine antibodies, such tags permit easy protein purification on nickel based affinity columns …   Dictionary of molecular biology

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