Medical Dictionary

zinc finger

noun

Medical Definition of zinc finger

  1. :  any of a class of proteins that typically possess tandem repeats of fingerlike loops of amino acids with each loop containing a zinc-binding site at its base consisting of two molecules of cysteine and two molecules of histidine and that regulates transcription by binding to specific regions of a gene's DNA; also :  one of the fingerlike amino acid loops of such a protein


Seen and Heard

What made you want to look up zinc finger? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a favoring of the simplest explanation

Get Word of the Day daily email!