Biochemistry & Molecular Pharmacology
Program in Gene Function and Expression; Department of Biochemistry and Molecular Pharmacology; Program in Molecular Medicine
Medical Subject Headings
Artificial Intelligence; Binding Sites; DNA; DNA-Binding Proteins; Models, Biological; Nucleotide Motifs; *Regulatory Elements, Transcriptional; Transcription Factors; *Zinc Fingers
Biochemistry | Computational Biology
Cys(2)-His(2) zinc finger proteins (ZFPs) are the largest family of transcription factors in higher metazoans. They also represent the most diverse family with regards to the composition of their recognition sequences. Although there are a number of ZFPs with characterized DNA-binding preferences, the specificity of the vast majority of ZFPs is unknown and cannot be directly inferred by homology due to the diversity of recognition residues present within individual fingers. Given the large number of unique zinc fingers and assemblies present across eukaryotes, a comprehensive predictive recognition model that could accurately estimate the DNA-binding specificity of any ZFP based on its amino acid sequence would have great utility. Toward this goal, we have used the DNA-binding specificities of 678 two-finger modules from both natural and artificial sources to construct a random forest-based predictive model for ZFP recognition. We find that our recognition model outperforms previously described determinant-based recognition models for ZFPs, and can successfully estimate the specificity of naturally occurring ZFPs with previously defined specificities.
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Citation: Nucleic Acids Res. 2014 Apr;42(8):4800-12. doi: 10.1093/nar/gku132. Epub 2014 Feb 12. Link to article on publisher's site
Nucleic acids research
Creative Commons License
This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 License
Gupta, Ankit; Christensen, Ryan G.; Bell, Heather A.; Goodwin, Mathew; Patel, Ronak Y.; Pandey, Manishi; Enuameh, Metewo Selase; Rayla, Amy L.; Zhu, Cong; Thibodeau-Beganny, Stacey; Brodsky, Michael H.; Joung, J. Keith; Wolfe, Scot A.; and Stormo, Gary D., "An improved predictive recognition model for Cys(2)-His(2) zinc finger proteins" (2014). GSBS Student Publications. 1904.