5WJQ

mouseZFP568-ZnF2-11 in complex with DNA

Summary for 5WJQ

• Entry DOI: 10.2210/pdb5wjq/pdb
• Descriptor: DNA (28-MER), Zinc finger protein 568, 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL, ... (6 entities in total)
• Functional Keywords: c2h2 type zinc fingers, dna binding, transferase-dna complex, gene regulation, gene regulation-dna complex, gene regulation/dna
• Biological source: Mus musculus (Mouse); More
• Total number of polymer chains: 3
• Total formula weight: 51586.94

Authors

Patel, A.,Cheng, X. (deposition date: 2017-07-24, release date: 2018-03-07, Last modification date: 2024-11-20)

Primary citation

Patel, A.,Yang, P.,Tinkham, M.,Pradhan, M.,Sun, M.A.,Wang, Y.,Hoang, D.,Wolf, G.,Horton, J.R.,Zhang, X.,Macfarlan, T.,Cheng, X.
DNA Conformation Induces Adaptable Binding by Tandem Zinc Finger Proteins.
Cell, 173:221-233.e12, 2018

PubMed Abstract: Tandem zinc finger (ZF) proteins are the largest and most rapidly diverging family of DNA-binding transcription regulators in mammals. ZFP568 represses a transcript of placental-specific insulin like growth factor 2 (Igf2-P0) in mice. ZFP568 binds a 24-base pair sequence-specific element upstream of Igf2-P0 via the eleven-ZF array. Both DNA and protein conformations deviate from the conventional one finger-three bases recognition, with individual ZFs contacting 2, 3, or 4 bases and recognizing thymine on the opposite strand. These interactions arise from a shortened minor groove caused by an AT-rich stretch, suggesting adaptability of ZF arrays to sequence variations. Despite conservation in mammals, mutations at Igf2 and ZFP568 reduce their binding affinity in chimpanzee and humans. Our studies provide important insights into the evolutionary and structural dynamics of ZF-DNA interactions that play a key role in mammalian development and evolution.

PubMed: 29551271
DOI: 10.1016/j.cell.2018.02.058

Experimental method

X-RAY DIFFRACTION (2.794 Å)