Related Experiment Video
Updated: Jul 12, 2025
06:50
A High-Throughput Electrochemiluminescence 7-Plex Assay Simultaneously Screening for Type 1 Diabetes and Multiple Autoimmune Diseases
Published on: May 29, 2020
2.6K
Using a modular massively parallel reporter assay to discover context-dependent regulatory activity in type 2
Biorxiv : the Preprint Server for Biology
|October 24, 2023
Summary
Massively parallel reporter assays reveal sequence features influencing gene regulation. Enhancer activity depends on context, with HNF1 motifs driving insulin gene promoter preference in beta cells, linking rare and common diabetes variants.
Area of Science:
- Genomics
- Molecular Biology
- Endocrinology
Background:
- Complex disease risk often resides in noncoding DNA, making functional interpretation challenging.
- Genome-wide association studies (GWAS) identify numerous loci associated with type 2 diabetes (T2D) and metabolic traits, primarily in noncoding regions.
- Understanding the regulatory mechanisms of these noncoding variants is crucial for deciphering disease etiology.
Conclusions:
- Cell-specific regulatory activity is influenced by enhancer-promoter compatibility.
- HNF1 motifs mediate context-specific enhancer function, linking rare MODY variants to common T2D-associated regulatory variants.
- MPRA library design requires careful consideration to accurately capture context-dependent regulatory processes at disease-associated loci.
Related Concept Videos
02:11Reporter Genes
11.4K
Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
11.4K
01:28Global Regulatory Systems
29
Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...
29
01:22Diabetes Mellitus: Overview and Type I Subtype
2.7K
Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
2.7K
01:22Diabetes Mellitus: Type 2 and Gestational
2.5K
Type 2 diabetes, characterized by insulin resistance, arises when the insulin receptors on cells lose responsiveness to insulin, diminishing the cell's capacity to take up glucose, resulting in elevated blood glucose levels. To receive a diagnosis of Type 2 diabetes, a series of blood glucose tests are necessary to assess whether the blood glucose falls within normal parameters. If the result is out of the normal range, a patient may be diagnosed as prediabetic or diabetic, depending on the...
2.5K