Gene Regulatory Activity
Gene Regulatory Activity - Related Videos
07:55
Using SCOPE to Identify Potential Regulatory Motifs in Coregulated Genes
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Cited by 3 •
2011
A straight-forward and robust method to identify potential regulatory motifs in co-regulated genes is presented. SCOPE does not require any user parameters and returns motifs that represent excellent candidates for regulatory signals. The identification of such regulatory signals helps to understand the underlying biology.
09:07
Prediction and Validation of Gene Regulatory Elements Activated During Retinoic Acid Induced Embryonic Stem Cell Differentiation
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Cited by 5 •
2016
In this work we provide an experimental workflow of how active enhancers can be identified and experimentally validated.
08:19
Quantitative Comparison of cis-Regulatory Element (CRE) Activities in Transgenic Drosophila melanogaster
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Cited by 15 •
2011
Phenotypic variation for traits can result from mutations in cis-regulatory element (CRE) sequences that control gene expression patterns. Methods derived for use in Drosophila melanogaster can quantitatively compare the levels of spatial and temporal patterns of gene expression mediated by modified or naturally occurring CRE variants.
02:02
Cis-regulatory Sequences
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2020
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
07:38
Quantifying the Activity of cis-Regulatory Elements in the Mouse Retina by Explant Electroporation
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Cited by 26 •
2011
This protocol describes a simple and inexpensive way to quantify the activity of cis-regulatory elements (i.e., enhancer/promoters) in living mouse retinas via explant electroporation. DNA preparation, retinal dissection, electroporation, retinal explant culture, and post-fixation analysis and quantification are described.
FAQs
Transcription factors interact with regulatory DNA regions, including promoters and enhancers, to influence whether transcription occurs and how strongly it proceeds. Promoters are associated with the start of transcription, while enhancers can contribute to regulatory control through interactions with the gene’s regulatory system. Their combined activity helps cells adjust gene expression in response to signals and support specialized cell states.
Chromatin structure affects how accessible regulatory DNA is to the molecular components that control transcription. Changes in that structure can therefore influence whether transcription factors and related regulators interact with promoters or enhancers. This layer of control helps coordinate gene activity across different cellular conditions, contributing to processes such as development, differentiation, and responses to environmental change.
Regulatory RNAs add a post-transcriptional layer of control by influencing messenger RNA stability. Because messenger RNA provides an intermediate through which gene information is used, changes in its stability can alter the amount of gene product produced even after transcription has occurred. Considering regulatory RNAs alongside transcription factors, DNA elements, and chromatin gives a broader view of gene control.
Patterns of regulation help explain how cells maintain distinct identities while responding to changing signals. They are also relevant to development, differentiation, metabolism, and environmental responses. Comparing regulatory activity across these contexts can reveal how cells coordinate groups of genes rather than treating expression of each gene as an isolated event.
In developmental biology, regulatory activity helps researchers examine how changing gene expression supports developmental progression and cell differentiation. In genetics, it provides a framework for investigating how regulatory DNA, transcription factors, chromatin, and regulatory RNAs influence biological traits. These perspectives connect molecular control of genes with the emergence and maintenance of distinct cellular characteristics.
Disrupted regulation can interfere with normal cellular programs, making regulatory mechanisms relevant to disease research. Studying these disruptions may clarify how altered control of transcription or messenger RNA stability affects biological function. The same knowledge supports therapeutic research by identifying regulatory processes that could be considered when investigating ways to understand or influence abnormal cellular behavior.