Synthetic protein-protein interaction domains created by shuffling Cys(2)HiS(2) zinc-fingers

Giesecke, Astrid V. and Fang, Rui and Joung, J. Keith (2006) Synthetic protein-protein interaction domains created by shuffling Cys(2)HiS(2) zinc-fingers. MOLECULAR SYSTEMS BIOLOGY, 2: 2006.0011. ISSN 1744-4292,

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Abstract

Cys(2)His(2) zinc-fingers (C2H2 ZFs) mediate a wide variety of protein-DNA and protein-protein interactions. DNA-binding C2H2 ZFs can be shuffled to yield artificial proteins with different DNA-binding specificities. Here we demonstrate that shuffling of C2H2 ZFs from transcription factor dimerization zinc-finger (DZF) domains can also yield two-finger DZFs with novel protein-protein interaction specificities. We show that these synthetic protein-protein interaction domains can be used to mediate activation of a single-copy reporter gene in bacterial cells and of an endogenous gene in human cells. In addition, the synthetic two-finger domains we constructed can also be linked together to create more extended, four-finger interfaces. Our results demonstrate that shuffling of C2H2 ZFs can yield artificial protein-interaction components that should be useful for applications in synthetic biology.

Item Type: Article
Uncontrolled Keywords: GCN4 LEUCINE-ZIPPER; DNA-BINDING PROTEINS; TRANSCRIPTION FACTOR; COILED-COIL; IKAROS FAMILY; CRYSTAL-STRUCTURE; RECOGNITION CODE; GENE-EXPRESSION; DRUG DISCOVERY; PHAGE DISPLAY; artificial transcription factor; Cys(2)His(2) zinc-finger; domain shuffling; protein engineering; protein-protein interactions
Subjects: 500 Science > 590 Zoological sciences
Divisions: Biology, Preclinical Medicine > Institut für Zoologie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 03 Mar 2021 07:38
Last Modified: 03 Mar 2021 07:38
URI: https://pred.uni-regensburg.de/id/eprint/35229

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