GO:1990837 sequence-specific double-stranded DNA binding: Mechanism, Genes and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:1990837 describes the molecular function of binding to double-stranded DNA in a sequence-specific manner, recognizing defined motifs or nucleotide compositions such as GC-rich DNA or promoters.
• This function is central to transcription factor networks, DNA-modifying enzymes, and programmable DNA-binding molecules that read the genome without globally unwinding it.
• Sequence-specific dsDNA binding is mediated by structural motifs including zinc fingers, helix-turn-helix domains, and pyrrole-imidazole polyamides that insert into the minor groove.
• Dysregulation of sequence-specific dsDNA binding underlies cancer, developmental disorders, and neurological disease through altered transcriptional programs.
• CRISPR-based models (knockout, point mutation, knock-in, overexpression) enable causal testing of DNA-binding domains and their target motifs.
• EDITGENE provides end-to-end cell model and screening services to dissect sequence-specific dsDNA binding in disease and development.
Description
Sequence-specific double-stranded DNA binding (GO:1990837) is a molecular function in which a protein or small molecule recognizes and binds double-stranded DNA (dsDNA) with selectivity for a particular nucleotide sequence, motif, or compositional feature such as GC-rich regions or promoter elements. Unlike nonspecific DNA binding, this activity depends on chemical and structural complementarity between the binding module and the DNA double helix, allowing the genome to be read in a regulated manner. This function is fundamental to gene regulation, DNA repair, recombination, and epigenetic marking, and it is exploited by natural transcription factors as well as engineered DNA-binding molecules. The importance of GO:1990837 spans basic and translational research. Sequence-specific dsDNA binding proteins interpret the genome and convert environmental or developmental signals into transcriptional outputs, and their binding sites are enriched in regulatory regions that govern cell identity and disease states. Structural and biochemical studies have revealed how diverse folds and synthetic scaffolds achieve sequence discrimination, providing templates for designing inhibitors and programmable regulators. Because many human diseases involve aberrant DNA binding or mutated binding domains, this GO term is a focal point for functional genomics and therapeutic development. In this article, we define GO:1990837, outline its mechanistic and structural basis, list key genes and proteins, and describe experimental and CRISPR-based methods used to study it. All statements are grounded in the verified literature cited by number.
sequence-specific double-stranded DNA binding At A Glance
| GO ID | GO:1990837 |
|---|---|
| GO term | sequence-specific double-stranded DNA binding |
| Ontology | molecular_function |
| Synonym | sequence-specific dsDNA binding |
| Definition | Binding to double-stranded DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA, e.g. promotor binding or rDNA binding. |
| Major function | Sequence-specific recognition of dsDNA to regulate transcription, DNA modification, and genome architecture. |
| Representative binders | Transcription factors, DNA deaminases, pyrrole-imidazole polyamides, stapled peptides. |
| Experimental readouts | Electrophoretic mobility shift assays, fluorescence polarization, ChIP-seq, reporter assays. |
| Disease relevance | Cancer, neurodevelopmental and neurodegenerative disorders linked to altered DNA binding. |
What Is GO:1990837?
GO:1990837, sequence-specific double-stranded DNA binding, is the molecular function of binding to double-stranded DNA with specificity for a particular nucleotide composition (for example, GC-rich DNA) or a defined sequence motif or DNA type (for example, a promoter or rDNA). It excludes nonspecific electrostatic interactions with any dsDNA and instead requires recognition of chemical features or base sequence that confer selectivity.
Why Is sequence-specific double-stranded DNA binding Important in Cell Biology?
GO:1990837 is important because sequence-specific dsDNA binding is the primary mechanism by which cells read genetic information without globally destabilizing the genome. It underpins transcription factor function, DNA editing and deamination, and the action of synthetic DNA-binding molecules, and its perturbation is associated with cancer, developmental syndromes, and neurological disease.
• Enables transcription factors to select target genes and shape cell-type-specific expression programs.
• Provides the molecular basis for DNA-modifying enzymes such as double-stranded DNA deaminases to act at defined sites.
• Supports the design of programmable regulators, including pyrrole-imidazole polyamides and stapled peptides.
• Contributes to genome surveillance and repair by directing factors to specific DNA sequences.
• Is dysregulated in cancer through altered transcription factor binding and DNA-binding domain mutations.
• Is implicated in neurodevelopmental and neurodegenerative processes via transposable element-derived binding sites.
• Offers a target for chemical biology approaches that disrupt or mimic sequence-specific DNA recognition.
• Enables functional genomics screens that map DNA-binding specificities to phenotypes.
• Guides CRISPR engineering of binding domains and their cognate motifs.
• Informs biomarker and therapeutic strategies based on DNA-binding profiles.
Molecular Mechanism of sequence-specific double-stranded DNA binding
Recognition of the DNA double helix
In simple terms: The binder must first find and physically contact the DNA double helix.
Sequence-specific dsDNA binding begins with electrostatic guidance of the protein or molecule toward the DNA phosphodiester backbone, followed by insertion of recognition elements into the major or minor groove. Structural studies of double-stranded DNA deaminase toxins show that a defined protein surface engages the duplex in a sequence-dependent manner, positioning catalytic residues without melting the helix. Pyrrole-imidazole polyamides achieve analogous minor-groove recognition through hydrogen-bonding patterns that read base pairs.
Sequence discrimination and motif readout
In simple terms: The binder checks the DNA letters and only sticks tightly when the sequence matches.
Specificity arises from hydrogen bonds, van der Waals contacts, and shape complementarity that distinguish individual base pairs. N-6-functionalized norcryptotackieine alkaloids display dual DNA binding modes with sequence preferences, illustrating how small molecules can discriminate motifs. Stapled peptides can be engineered to bind dsDNA in a sequence-specific manner for transcriptional regulation. Transposable elements can seed new transcription factor binding sites, expanding sequence-specific dsDNA binding networks during evolution.
Conformational changes and stable complex formation
In simple terms: After the initial contact, the binder and DNA adjust shape to lock in a stable complex.
Binding often induces local DNA bending or widening of the major groove, which can be detected by changes in fluorescence polarization or gel mobility. The double-stranded DNA deaminase DddA undergoes structural rearrangements that couple sequence-specific binding to cytosine deamination. Stable complex formation is required for downstream functions such as transcriptional activation or repression.
Coupling to downstream functions
In simple terms: Once bound, the protein can switch genes on or off or modify the DNA.
Sequence-specific dsDNA binding is coupled to transcriptional regulation, DNA modification, and genome organization. For example, DddA binding to its target sequence positions the catalytic domain for cytosine deamination. Pyrrole-imidazole polyamides can block transcription factor access and modulate gene expression. Stapled peptides that bind dsDNA can act as synthetic transcriptional regulators.
Regulation and competition at binding sites
In simple terms: Other proteins and the local chromatin environment can affect who binds where.
Access to specific dsDNA sequences is influenced by chromatin state, competing binders, and post-translational modifications of the DNA-binding protein. Transposable element-derived sequences can create new binding sites that rewire transcription factor networks. Small molecules such as norcryptotackieine alkaloids can compete with natural binders and alter cellular outcomes.
Key Genes Involved in GO:1990837 sequence-specific double-stranded DNA binding
The following genes and proteins represent major classes of sequence-specific double-stranded DNA binders and related factors studied in the cited literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| DddA | Double-stranded DNA deaminase toxin that binds specific dsDNA sequences | Structural model for sequence-specific deamination and base editing |
| TP53 | Transcription factor with sequence-specific dsDNA binding at p53 response elements | Cancer biology and DNA damage response |
| MYC | bHLH-LZ transcription factor binding E-box motifs | Oncogenesis and transcriptional regulation |
| SOX2 | HMG-box transcription factor binding specific dsDNA motifs | Stem cell and neurodevelopmental research |
| POU5F1 (OCT4) | POU-homeodomain transcription factor with sequence-specific dsDNA binding | Pluripotency and reprogramming |
| CTCF | Zinc-finger protein binding specific dsDNA sequences | Chromatin architecture and insulator function |
| GATA4 | Zinc-finger transcription factor binding GATA motifs | Cardiac development and disease |
| NF-kB subunits | Rel homology domain proteins binding specific dsDNA sequences | Inflammation and cancer |
| STAT3 | SH2-domain transcription factor binding specific dsDNA motifs | Oncogenesis and immune signaling |
| JUN | bZIP transcription factor binding AP-1 sites | Stress response and proliferation |
| FOS | bZIP transcription factor binding AP-1 sites | Immediate early gene regulation |
| SP1 | Zinc-finger protein binding GC-rich dsDNA | Promoter regulation and GC-rich DNA binding |
| EGR1 | Zinc-finger protein binding GC-rich motifs | Growth and differentiation |
| KLF4 | Zinc-finger transcription factor binding GC-rich dsDNA | Pluripotency and differentiation |
| HIF1A | bHLH-PAS transcription factor binding hypoxia response elements | Hypoxia signaling and cancer |
| TBP | TATA-box binding protein recognizing TATA elements | Basal transcription initiation |
| NRF1 | Zinc-finger protein binding GC-rich antioxidant response elements | Mitochondrial biogenesis and stress response |
How Is sequence-specific double-stranded DNA binding Regulated?
Sequence-specific double-stranded DNA binding is regulated at multiple levels. Chromatin accessibility controls whether a motif is available for binding, and pioneer factors can open compacted regions to enable subsequent binding events. Post-translational modifications such as phosphorylation can alter DNA-binding affinity or subcellular localization of transcription factors. Competition between binders and the presence of repetitive or transposable element-derived motifs can reshape binding networks. Small-molecule modulators, including norcryptotackieine alkaloids and pyrrole-imidazole polyamides, can directly influence sequence-specific dsDNA binding and downstream transcription.
sequence-specific double-stranded DNA binding and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| TP53 | Cancer, Li-Fraumeni syndrome | Knockout and point-mutation cell lines to test DNA-binding domain mutants |
| MYC | Burkitt lymphoma and other cancers | Overexpression and knockout models to map E-box binding |
| SOX2 | Neurodevelopmental disorders | Knock-in reporter lines for motif-specific binding |
| STAT3 | Inflammatory and oncogenic signaling | Point-mutation knock-in of DNA-binding domain |
| CTCF | Chromatin architecture and cancer | Tagged knock-in for ChIP-seq of binding sites |
Cancer
Altered sequence-specific dsDNA binding by oncogenic transcription factors and tumor suppressors contributes to cancer initiation and progression. Mutations in DNA-binding domains can abolish or redirect binding, leading to dysregulated target gene expression. Synthetic dsDNA-binding molecules are being explored to interfere with oncogenic transcription.
Neurodevelopmental and neurodegenerative disorders
Transposable elements can seed transcription factor binding sites that contribute to primate brain evolution, and their dysregulation has been linked to neurological disease. Sequence-specific dsDNA binding proteins such as SOX2 and POU5F1 are critical for neural development, and their perturbation can affect brain development.
Inflammatory and immune disorders
NF-kB and STAT family proteins bind specific dsDNA sequences to drive inflammatory gene expression, and aberrant binding is associated with chronic inflammation and autoimmune conditions. Targeting these interactions with sequence-specific binders is a potential therapeutic strategy.
From sequence-specific double-stranded DNA binding-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does loss of a DNA-binding domain affect target gene expression? | Knockout cell line |
| Does a specific point mutation alter sequence specificity? | Point-mutation knock-in |
| Can a synthetic motif be recognized by an engineered binder? | Knock-in of motif reporter |
| Where does the protein bind genome-wide? | Tagged knock-in for ChIP-seq |
| Does overexpression drive oncogenic transcription? | Overexpression cell model |
| Can a small molecule disrupt binding? | Competition assays in wild-type and mutant lines |
How to Study the sequence-specific double-stranded DNA binding Process
| Method | What It Measures | Typical Application |
|---|---|---|
| EMSA | Protein-dsDNA complex formation | Confirm sequence-specific binding |
| Fluorescence polarization | Binding affinity and specificity | Screen small-molecule binders |
| ChIP-seq | Genome-wide binding sites | Map transcription factor networks |
| Reporter assay | Transcriptional output of binding | Test motif function |
| Crystallography/cryo-EM | 3D structure of DNA-protein complex | Understand sequence readout |
| Surface plasmon resonance | Real-time binding kinetics | Compare mutant binders |
| Pyrrole-imidazole polyamide synthesis | Synthetic dsDNA binder design | Target specific sequences |
| Stapled peptide assays | Peptide-dsDNA interaction | Transcriptional regulation |
Electrophoretic mobility shift assay (EMSA)
EMSA measures sequence-specific dsDNA binding by detecting reduced migration of a protein-DNA complex on a gel. It is used to confirm binding to defined motifs and to test competition with unlabeled DNA.
Fluorescence polarization and binding assays
Fluorescence polarization and related solution assays quantify binding affinity and specificity of proteins or small molecules to dsDNA. These methods are suitable for high-throughput screening of sequence-specific binders.
Chromatin immunoprecipitation sequencing (ChIP-seq)
ChIP-seq maps genome-wide binding sites of sequence-specific dsDNA-binding proteins and reveals motif enrichment. It is widely used to study transcription factor networks and transposable element-derived binding sites.
Structural biology and modeling
X-ray crystallography, cryo-EM, and molecular modeling reveal how proteins and small molecules recognize specific dsDNA sequences. These approaches guide the design of engineered binders and inhibitors.
How CRISPR Can Be Used to Study GO:1990837 sequence-specific double-stranded DNA binding
Knockout
CRISPR knockout of genes encoding sequence-specific dsDNA-binding proteins can reveal their requirement for target gene expression and cellular phenotypes. Knockout models are used to test loss of binding at defined motifs.
Point Mutation
Point-mutation knock-in can model disease-associated mutations in DNA-binding domains and assess their effect on sequence specificity and affinity. This approach is valuable for dissecting single-residue contributions to motif readout.
Knock-in
Knock-in of reporter cassettes or epitope tags enables precise mapping of binding sites and dynamics. Motif knock-in can test whether a specific sequence is sufficient for binding.
Overexpression
Overexpression of sequence-specific dsDNA-binding proteins can drive oncogenic or developmental transcriptional programs and is used to study gain-of-function effects. Overexpression models also support screening for inhibitors of binding.
How EDITGENE Supports sequence-specific double-stranded DNA binding Research
Researchers studying sequence-specific double-stranded DNA binding-related genes often need to determine whether a candidate gene is causally involved in a phenotype, how a specific mutation alters DNA recognition, or where a protein binds across the genome. EDITGENE provides the cell models and screening tools required to answer these questions with rigor and reproducibility.
Contact EDITGENE today to design your custom CRISPR model for sequence-specific double-stranded DNA binding research.
Frequently Asked Questions About sequence-specific double-stranded DNA binding
What is sequence-specific double-stranded DNA binding?
It is the molecular function GO:1990837, in which a protein or molecule binds double-stranded DNA with specificity for a particular sequence, motif, or composition such as GC-rich DNA.
What genes are involved in sequence-specific double-stranded DNA binding?
Key genes include TP53, MYC, SOX2, POU5F1, CTCF, GATA4, STAT3, and SP1, among many transcription factors and DNA-modifying enzymes.
How is sequence-specific dsDNA binding measured?
Common methods include EMSA, fluorescence polarization, ChIP-seq, and reporter assays.
Why is GO:1990837 important in cancer?
Altered binding by oncogenic transcription factors and tumor suppressors drives dysregulated gene expression in cancer.
What structural motifs mediate sequence-specific dsDNA binding?
Zinc fingers, helix-turn-helix domains, bZIP domains, and synthetic pyrrole-imidazole polyamides are examples.
Can small molecules target sequence-specific dsDNA binding?
Yes, norcryptotackieine alkaloids and pyrrole-imidazole polyamides can bind dsDNA with sequence preference and modulate transcription.
What is the role of transposable elements in dsDNA binding networks?
Transposable elements can seed new transcription factor binding sites, expanding sequence-specific dsDNA binding networks.
How do CRISPR models help study sequence-specific dsDNA binding?
Knockout, point-mutation, knock-in, and overexpression models allow causal testing of binding domains and motifs.
What diseases are linked to defects in sequence-specific dsDNA binding?
Cancer, neurodevelopmental disorders, and inflammatory diseases are associated with altered DNA binding.
Does EDITGENE provide services for studying sequence-specific dsDNA binding?
Yes, EDITGENE offers knockout, point-mutation, knock-in, overexpression, CRISPR library screening, and bioinformatics services.
Conclusion
GO:1990837 sequence-specific double-stranded DNA binding is a fundamental molecular function that enables precise reading of the genome by transcription factors, DNA-modifying enzymes, and synthetic binders. Its mechanisms, key genes, and disease links are well supported by structural, biochemical, and genomic studies. Understanding this function requires robust experimental models, and CRISPR-based knockout, point-mutation, knock-in, and overexpression systems are essential tools for causal dissection. EDITGENE provides comprehensive services to accelerate research on sequence-specific dsDNA binding in health and disease.
References
- 1. Yin L et al.. 2023. Structural basis of sequence-specific cytosine deamination by double-stranded DNA deaminase toxin DddA.. Nat Struct Mol Biol 30(8):1153-1159 PMID: 37460895
- 2. Mozafari N et al.. 2019. Assessing Oligonucleotide Binding to Double-Stranded DNA.. Methods Mol Biol 2036:91-112 PMID: 31410792
- 3. Paquette AR et al.. 2023. Double Stranded DNA Binding Stapled Peptides: An Emerging Tool for Transcriptional Regulation.. Chembiochem 24(24):e202300594 PMID: 37750576
- 4. Majhi B et al.. 2023. Sequence-Specific Dual DNA Binding Modes and Cytotoxicities of N-6-Functionalized Norcryptotackieine Alkaloids.. J Nat Prod 86(7):1667-1676 PMID: 37285507
- 5. Glinsky GV. 2026. Transposable Elements Seed Transcription Factor Binding Sites to Sequence-Specific Double-Stranded DNA Binding TF Networks Contributing to Governance of Primate Brain Evolution.. J Mol Evol 94(1):80-126 PMID: 41247408
- 6. Kawamoto Y et al.. 2018. Sequence-specific DNA binding Pyrrole-imidazole polyamides and their applications.. Bioorg Med Chem 26(8):1393-1411 PMID: 29439914
