zinc finger(redirected from Z finger)
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a zinc-binding domain in a protein structure often seen in certain gene regulatory proteins, for example, transcription factors.
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Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
zinc fingera finger-like structure that is found in specific DNA binding PROTEINS, where the DNA binding DOMAIN of the protein complexes zinc. Zinc fingers are found in various eukaryotic TRANSCRIPTION factors, which have a role in controlling the transcription of specific GENES.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005