GO:0006351 DNA-templated transcription: Mechanism, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0006351 DNA-templated transcription is the biological process of synthesizing an RNA transcript from a DNA template.
• Transcription is the first and most heavily regulated step of gene expression, converting genomic information into RNA for protein coding and non-coding functions.
• Chromatin structure and histone post-translational modifications are central regulators of transcription by controlling access of the transcriptional machinery to DNA.
• Transcription factors and RNA polymerases are recruited to promoters and enhancers, and their dynamic interactions can be mapped by DNA-templated crosslinking and photo-cross-linking approaches.
• Dysregulation of DNA-templated transcription is a hallmark of cancer, developmental disorders, and other diseases, making it a major therapeutic target.
• CRISPR-based knockout, point mutation, knock-in, and overexpression models enable causal dissection of transcription-related genes in disease and development.
Description
DNA-templated transcription (GO:0006351) is the biological process in which an RNA transcript is synthesized from a DNA template. This process is the first step of gene expression and is essential for converting the genetic information stored in DNA into functional RNA molecules, including messenger RNA (mRNA), ribosomal RNA (rRNA), transfer RNA (tRNA), and various non-coding RNAs. Because transcription determines which genes are expressed, when, and at what levels, it is a central node of cellular regulation and a major focus of biomedical research. The process is carried out by RNA polymerases, which are recruited to specific genomic loci by transcription factors and are influenced by chromatin structure and histone modifications. In eukaryotes, transcription occurs in the nucleus and is tightly coupled to RNA processing, while in prokaryotes it occurs in the cytoplasm. The complexity of transcription regulation is underscored by the many layers of control, including DNA methylation, histone post-translational modifications, and non-coding RNAs. Understanding DNA-templated transcription is therefore fundamental to understanding development, cellular homeostasis, and disease. Researchers study this process using a wide range of methods, from biochemical assays to genome-wide sequencing and imaging. The GO term GO:0006351 encompasses all these aspects, providing a standardized framework for annotating genes and proteins involved in RNA synthesis from DNA.
DNA-templated transcription At A Glance
| GO ID | GO:0006351 |
|---|---|
| GO term | DNA-templated transcription |
| Ontology | biological_process |
| Synonym | bacterial transcription, cellular transcription, DNA-dependent transcription, transcription, transcription, DNA-dependent, transcription, DNA-templated, transcription from bacterial-type RNA polymerase promoter |
| Major function | Synthesis of RNA from a DNA template |
| Related processes | Transcription initiation, elongation, termination, and regulation |
| Cellular location | Nucleus (eukaryotes), cytoplasm (prokaryotes) |
| Key enzymes | RNA polymerases (RNA Pol I, II, III in eukaryotes; RNA polymerase in prokaryotes) |
| Regulatory factors | Transcription factors, chromatin modifiers, histone chaperones |
What Is GO:0006351?
GO:0006351 DNA-templated transcription is defined as the synthesis of an RNA transcript from a DNA template. This process includes the initiation, elongation, and termination of RNA synthesis by RNA polymerases, as well as the associated regulatory events that control these steps. It is a biological process that is fundamental to gene expression in all cellular organisms.
Why Is DNA-templated transcription Important in Cell Biology?
DNA-templated transcription is essential for all cellular life because it is the primary step in gene expression, determining the RNA and protein repertoire of a cell. Its precise regulation is critical for development, differentiation, and response to environmental signals, and its dysregulation is associated with numerous human diseases, including cancer, neurodegeneration, and developmental disorders. Moreover, transcription is a major target for therapeutic intervention, and understanding its mechanisms can inform drug discovery and gene editing strategies.
• Transcription is the first step of gene expression, converting DNA into RNA.
• It is essential for cell growth, differentiation, and development.
• Dysregulation of transcription is a hallmark of cancer and other diseases.
• Transcription factors are frequent oncogenes or tumor suppressors.
• Chromatin modifications regulate transcription and are targets for epigenetic therapies.
• RNA polymerase II transcription is coupled to RNA processing and export.
• Transcription is a key point of control for cellular responses to stress and signals.
• Studying transcription helps understand mechanisms of drug resistance.
• Transcription is a target for CRISPR-based gene regulation tools.
• Many human diseases arise from mutations in transcription-related genes.
What Happens During DNA-templated transcription?
Initiation
In simple terms: Initiation is the first step where the cell decides to start making an RNA copy from a gene.
Initiation of DNA-templated transcription involves the recognition of promoter sequences by RNA polymerase and associated transcription factors. In eukaryotes, RNA polymerase II requires general transcription factors to form a preinitiation complex at the promoter. This step is highly regulated and is influenced by chromatin structure, including histone modifications such as H3K4me3, which can enhance TFIID binding. The recruitment of RNA polymerase and the melting of DNA to form an open complex are critical for transcription initiation.
Elongation
In simple terms: Elongation is the phase where the RNA chain is extended as the polymerase moves along the DNA.
During elongation, RNA polymerase synthesizes the RNA transcript by adding nucleotides complementary to the DNA template strand. This process is processive and is regulated by elongation factors that can pause or release the polymerase. Chromatin remodeling and histone chaperones facilitate polymerase passage through nucleosomes. Post-translational modifications of histones, such as serotonylation, can also influence elongation by affecting chromatin accessibility.
Termination
In simple terms: Termination is the step where RNA synthesis stops and the new RNA is released.
Termination of DNA-templated transcription occurs when RNA polymerase encounters termination signals, leading to release of the RNA transcript and dissociation of the polymerase from DNA. In eukaryotes, termination is coupled to RNA processing, including polyadenylation. Proper termination is essential to prevent read-through into neighboring genes and to maintain genome stability.
Regulation by Chromatin and Epigenetics
In simple terms: Chromatin and epigenetic marks control whether a gene is accessible for transcription.
Chromatin structure and histone post-translational modifications are major regulators of DNA-templated transcription. For example, histone acetylation and methylation can either promote or repress transcription by altering chromatin compaction and recruiting reader proteins. Histone chaperones coupled to DNA replication and transcription control chromatin dynamics to maintain cell fate. Photo-cross-linking methods have been used to map epigenetic interactomes and transcription factor binding.
Transcription Factor Binding and DNA-templated Crosslinking
In simple terms: Transcription factors bind to DNA to turn genes on or off, and scientists can capture these interactions.
Transcription factors recognize specific DNA sequences and recruit coactivators or corepressors to regulate transcription. DNA-templated crosslinking and photoaffinity labeling are techniques used to study transcription factor-DNA interactions. These methods enable the identification of direct binding partners and the mapping of transcription factor binding sites across the genome.
Key Genes Involved in GO:0006351 DNA-templated transcription
The following genes and proteins are key players in DNA-templated transcription, including RNA polymerases, transcription factors, chromatin modifiers, and chaperones.
| Gene | Major Role | Research Relevance |
|---|---|---|
| POLR2A | Catalytic subunit of RNA polymerase II | Target for transcription inhibitors; mutations in cancer |
| POLR1A | Catalytic subunit of RNA polymerase I | rRNA synthesis; target in cancer |
| POLR3A | Catalytic subunit of RNA polymerase III | tRNA and small RNA synthesis; mutations in leukodystrophy |
| TBP | TATA-box binding protein; general transcription factor | Core promoter recognition; mutations in spinocerebellar ataxia |
| TFIID | General transcription factor complex | Binds H3K4me3 to initiate transcription |
| MED1 | Mediator complex subunit | Transcriptional coactivator; oncogenic role in breast cancer |
| BRD4 | Bromodomain-containing protein 4 | Reads acetylated histones; target in cancer and inflammation |
| EP300 | Histone acetyltransferase | Transcriptional coactivator; tumor suppressor |
| CREBBP | Histone acetyltransferase | Transcriptional coactivator; mutated in Rubinstein-Taybi syndrome |
| SMARCA5 | Chromatin remodeler | Regulates transcription; stabilized by USP3 in prostate cancer |
| USP3 | Deubiquitinase | Stabilizes SMARCA5; promotes DNA damage response |
| H3-3A | Histone H3 variant | Post-translational modifications regulate transcription |
| H3-3B | Histone H3 variant | Serotonylation enhances TFIID binding |
| ASF1A | Histone chaperone | Coupled to replication and transcription |
| ASF1B | Histone chaperone | Maintains chromatin during transcription |
| T7 RNA polymerase | Bacteriophage RNA polymerase | Engineered for mRNA synthesis free of immunostimulatory byproducts |
| CTD of POLR2A | C-terminal domain of RNA Pol II | Phosphorylation regulates transcription and RNA processing |
How Is DNA-templated transcription Regulated?
DNA-templated transcription is regulated at multiple levels, including chromatin accessibility, transcription factor availability, and signaling pathways. Histone modifications such as methylation, acetylation, and serotonylation directly influence transcription by recruiting reader proteins and altering chromatin structure. For example, histone serotonylation enhances TFIID binding to H3K4me3, promoting transcription. Chromatin remodelers and histone chaperones, such as SMARCA5 and ASF1A/B, are coupled to DNA replication and transcription to maintain cell fate. Additionally, deubiquitinases like USP3 stabilize chromatin remodelers to promote DNA damage response and chemotherapy resistance. These regulatory mechanisms ensure precise control of gene expression in response to developmental and environmental cues.
DNA-templated transcription and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| USP3 | Prostate cancer, chemotherapy resistance | Knockout in prostate cancer cell lines |
| SMARCA5 | Cancer, chromatin remodeling | Point mutation to disrupt USP3 binding |
| BRD4 | Breast cancer, inflammation | Overexpression in breast cancer cells |
| POLR3A | Hypomyelinating leukodystrophy | Knock-in of patient mutations in iPSCs |
| CREBBP | Rubinstein-Taybi syndrome | Knockout in neural progenitor cells |
Cancer
Dysregulation of DNA-templated transcription is a hallmark of cancer, with many oncogenes and tumor suppressors functioning as transcription factors or chromatin regulators. For example, BRD4 and MED1 are frequently amplified or overexpressed in breast cancer, and inhibitors targeting these transcriptional coactivators are in clinical trials. Mutations in histone acetyltransferases such as EP300 and CREBBP are found in various cancers. In prostate cancer, USP3 stabilizes SMARCA5 to promote DNA damage response and chemotherapy resistance, linking transcription regulation to treatment failure.
Neurodegeneration
Defects in transcription are associated with neurodegenerative disorders. Mutations in POLR3A cause hypomyelinating leukodystrophy, and TBP mutations are linked to spinocerebellar ataxia. Disrupted transcription factor binding and chromatin remodeling contribute to neuronal dysfunction.
Developmental Disorders
Germline mutations in transcription-related genes cause developmental syndromes. For instance, CREBBP mutations cause Rubinstein-Taybi syndrome, characterized by intellectual disability and growth defects. Histone chaperone mutations can impair chromatin dynamics during development.
From DNA-templated transcription-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does loss of USP3 affect transcription and DNA repair? | USP3 knockout cell line |
| Does a point mutation in SMARCA5 disrupt its interaction with USP3? | SMARCA5 point-mutation knock-in |
| Does overexpression of BRD4 drive oncogenic transcription? | BRD4 overexpression in cancer cells |
| How does histone serotonylation affect TFIID binding? | H3-3B point mutation (serotonylation site) |
| What is the role of ASF1A in transcription-coupled chromatin assembly? | ASF1A knockout or tagged knock-in |
| Can engineered T7 RNA polymerase reduce immunogenicity? | T7 RNA polymerase overexpression |
How to Study the DNA-templated transcription Process
| Method | What It Measures | Typical Application |
|---|---|---|
| RNA-seq | RNA transcript levels | Gene expression profiling after knockout |
| ChIP-seq | Protein-DNA binding | Mapping transcription factor binding sites |
| Photo-cross-linking | Direct protein-DNA interactions | Identifying transcription factor targets |
| Proteomics | Protein abundance and interactions | Discovering chromatin regulators |
| CRISPR screen | Gene function in transcription | Identifying regulators of transcription |
| Reporter assays | Transcriptional activity | Measuring promoter activity |
| ATAC-seq | Chromatin accessibility | Assessing open chromatin regions |
| Nascent RNA labeling | Active transcription | Measuring transcription rates |
RNA Sequencing (RNA-seq)
RNA-seq measures the abundance of RNA transcripts and can quantify changes in transcription after genetic perturbations. It is widely used to assess the impact of knockout or overexpression of transcription-related genes.
Chromatin Immunoprecipitation Sequencing (ChIP-seq)
ChIP-seq maps the binding sites of transcription factors and RNA polymerases across the genome, providing insights into transcriptional regulation. It can be combined with CRISPR-based knockouts to study factor function.
Photo-Cross-Linking and DNA-Templated Crosslinking
Photoaffinity labeling and DNA-templated crosslinking enable the identification of direct transcription factor-DNA interactions and epigenetic interactomes. These methods are valuable for mapping dynamic transcription complexes.
Proteomics and Interactomics
Mass spectrometry-based proteomics can identify proteins associated with transcription complexes and chromatin. For example, USP3 was identified as a regulator of SMARCA5 stability through interactome studies.
How CRISPR Can Be Used to Study GO:0006351 DNA-templated transcription
Knockout
CRISPR knockout is used to delete genes involved in DNA-templated transcription to study their loss-of-function phenotypes. For example, knockout of USP3 in prostate cancer cells revealed its role in DNA damage response and chemotherapy resistance. Knockout of histone chaperones such as ASF1A can disrupt chromatin dynamics during transcription.
Point Mutation
Point mutations can be introduced to dissect specific residues or domains of transcription factors and chromatin regulators. For instance, point mutations in SMARCA5 can disrupt its interaction with USP3, affecting transcription and DNA repair. Point mutations in histone H3 can prevent serotonylation, altering TFIID binding.
Knock-in
Knock-in models allow the expression of tagged or mutant versions of transcription-related proteins at endogenous loci. Tagged knock-in of RNA polymerase subunits enables chromatin immunoprecipitation and imaging studies. Knock-in of patient mutations in POLR3A can model leukodystrophy.
Overexpression
Overexpression of transcription factors or coactivators can drive oncogenic transcription and model cancer. For example, overexpression of BRD4 in breast cancer cells promotes proliferation and is a therapeutic target. Overexpression of engineered T7 RNA polymerase can produce mRNA free of immunostimulatory byproducts.
How EDITGENE Supports DNA-templated transcription Research
Researchers studying DNA-templated transcription-related genes often need to determine whether a candidate gene is causally involved in a specific transcriptional program or disease phenotype. CRISPR-based genome editing provides a robust toolkit to create knockout, point mutation, knock-in, and overexpression models that can address these questions with high precision.
Contact EDITGENE today to design your custom CRISPR model for DNA-templated transcription research.
Frequently Asked Questions About DNA-templated transcription
What is GO:0006351 DNA-templated transcription?
GO:0006351 is a Gene Ontology biological process term defined as the synthesis of an RNA transcript from a DNA template.
What genes are involved in DNA-templated transcription?
Key genes include RNA polymerases (POLR2A, POLR1A, POLR3A), transcription factors (TBP, TFIID), chromatin remodelers (SMARCA5), and histone chaperones (ASF1A/B).
How is DNA-templated transcription regulated?
It is regulated by chromatin structure, histone modifications, transcription factor binding, and signaling pathways.
What diseases are associated with defective transcription?
Cancer, neurodegeneration, and developmental disorders such as Rubinstein-Taybi syndrome and leukodystrophy.
What methods are used to study DNA-templated transcription?
RNA-seq, ChIP-seq, photo-cross-linking, proteomics, and CRISPR screens.
How can CRISPR be used to study transcription?
CRISPR knockout, point mutation, knock-in, and overexpression models allow functional dissection of transcription-related genes.
What is the role of histone modifications in transcription?
Histone modifications such as methylation, acetylation, and serotonylation regulate chromatin accessibility and transcription factor recruitment.
What is DNA-templated crosslinking?
It is a technique to capture direct interactions between transcription factors and DNA using photoaffinity labeling.
Which RNA polymerase is responsible for mRNA synthesis?
RNA polymerase II transcribes protein-coding genes to produce mRNA.
How does EDITGENE support transcription research?
EDITGENE provides custom CRISPR cell models, library screening, and bioinformatics services for transcription studies.
Conclusion
DNA-templated transcription (GO:0006351) is a fundamental biological process that converts genetic information into RNA, and its precise regulation is essential for normal development and cellular function. Dysregulation of transcription underlies many human diseases, making it a critical area of research. Advances in CRISPR-based genome editing and functional genomics are accelerating the discovery of transcription regulators and their roles in disease. EDITGENE offers comprehensive services to support researchers in modeling and studying DNA-templated transcription with high precision.
References
- 1. Millán-Zambrano G et al.. 2022. Histone post-translational modifications - cause and consequence of genome function.. Nat Rev Genet 23(9):563-580 PMID: 35338361
- 2. Farrelly LA et al.. 2019. Histone serotonylation is a permissive modification that enhances TFIID binding to H3K4me3.. Nature 567(7749):535-539 PMID: 30867594
- 3. Yang J et al.. 2023. Epigenetic regulation in the tumor microenvironment: molecular mechanisms and therapeutic targets.. Signal Transduct Target Ther 8(1):210 PMID: 37217462
- 4. Li S et al.. 2024. USP3 promotes DNA damage response and chemotherapy resistance through stabilizing and deubiquitinating SMARCA5 in prostate cancer.. Cell Death Dis 15(11):790 PMID: 39500888
- 5. Dousis A et al.. 2023. An engineered T7 RNA polymerase that produces mRNA free of immunostimulatory byproducts.. Nat Biotechnol 41(4):560-568 PMID: 36357718
- 6. Liu Y et al.. 2015. Photoaffinity labeling of transcription factors by DNA-templated crosslinking.. Chem Sci 6(1):745-751 PMID: 28706637
- 7. Franklin R et al.. 2025. Histone chaperones coupled to DNA replication and transcription control divergent chromatin elements to maintain cell fate.. Genes Dev 39(9-10):652-675 PMID: 40240143
- 8. Zhang Z et al.. 2022. Photo-Cross-Linking To Delineate Epigenetic Interactome.. J Am Chem Soc 144(46):20979-20997 PMID: 36346429
