Definition of Zinc finger

1. Noun. (biochemistry genetics) A structure, in some proteins, that binds to specific sequences of DNA and regulates genes ¹

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Medical Definition of Zinc finger

1. A specialised protein group that is characterised by a single zinc atom associated with DNA binding proteins. A loop of 12 amino acids contains either 2 cysteine and 2 histidine groups (a cysteine histidine zinc finger) or 4 cysteines (a cysteine cysteine zinc finger), that directly co ordinate a zinc atom. The loops (usually present in multiples) intercalate directly into the DNA helix. Originally identified in the RNA polymerase III transcription factor TFIIIA. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

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Lexicographical Neighbors of Zinc Finger

zinc D-Ala-D-Ala carboxypeptidase
zinc acetate
zinc arsenate
zinc blende
zinc cadmium sulfide
zinc caprylate
zinc chloride
zinc colic
zinc compounds
zinc deficiency
zinc deficiency dermatitis and diarrhoea
zinc excess
zinc finger (current term)
zinc fingers
zinc fume fever
zinc gelatin
zinc iodide
zinc isotopes
zinc ointment
zinc oxide
zinc oxide-eugenol cement
zinc oxide and eugenol
zinc permanganate
zinc peroxide
zinc phenolsulfonate
zinc phosphate cement
zinc phosphide

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