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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Genetic Mutations May Be Behind Epigenetic Clock of Aging

Researchers at University of California San Diego School of Medicine have published results that shed new light on an old question: what causes aging at the molecular level? Their findings, published in Nature Aging, describe a never-before-seen link between the two most accepted explanations: random genetic mutations and predictable epigenetic modifications.

22 Jan 2025

Ancient Viral DNA Plays a Key Role in Embryonic Development

More than half of the human genome is made up of thousands of remnants of ancient viral DNA, known as transposable elements, which are pervasive across the tree of life.

21 Jan 2025

RNA, Not DNA, Drives Acute Sunburn and Skin Damage

Sunburn has traditionally been attributed to UV-induced DNA damage. However, a new study by the University of Copenhagen and Nanyang Technological University, Singapore, reveals that RNA, another vital cellular molecule, plays a major role in triggering acute sunburn reactions.

20 Jan 2025

Unveiling the Interplay of DNA and RNA Epigenetics

The genes contain all the instructions the human body needs to function, but their expression must be carefully regulated to guarantee that each cell performs its function as best it can.

20 Jan 2025

GET Model Unveils Gene Regulation with Unmatched Accuracy Across Cell Types

GET, a novel computational model, accurately predicts gene activity by analyzing chromatin accessibility and DNA sequences across diverse human cell types.

20 Jan 2025

Scientists Discover Surprising Directional Flexibility in DNA-Shaping Motors

Scientists from Delft, Vienna, and Lausanne discovered that the protein machines that shape our DNA can switch direction.

17 Jan 2025

Study Unveils Surprising Cause of Brain Cell Death in Huntington's Disease

Scientists at the Broad Institute of MIT and Harvard, Harvard Medical School, and McLean Hospital have discovered a surprising mechanism by which the inherited genetic mutation known to cause Huntington's disease leads to the death of brain cells.

17 Jan 2025

AI-Powered Platform for Designing Novel Protein Interactions

Researchers at EPFL have opened up a world of possibilities in the computational design of molecular interactions for biomedicine by using deep learning to create new proteins that bind to complexes involving other small molecules, such as hormones or medications.

17 Jan 2025

New study reveals how genes switch on and off in human cells

An international group of scientists has made a significant advancement in their understanding of the regulation of gene expression throughout the human genome.

17 Jan 2025

New Approach Aims to Make CRISPR Therapy Safer and More Effective

CRISPR is a powerful gene-editing tool that holds enormous potential for treating genetic diseases by allowing scientists to cut, replace, or delete mutations in DNA.

16 Jan 2025

Researchers Develop Method to Visualize Nanocarriers at Single-Cell Level

How can we ensure that life-saving drugs or genetic therapies reach their intended target cells without causing harmful side effects? Researchers at Helmholtz Munich, Ludwig-Maximilians-Universität (LMU) and Technical University Munich (TUM) have taken an important step to answer this question.

16 Jan 2025

Epigenetic Mechanism Controls Placental Blood Vessel Formation

If the development of blood vessels in the placenta is impaired, fetal growth retardation may result. Scientists from the German Cancer Research Center (DKFZ) and the Mannheim Medical Faculty of Heidelberg University discovered that the correct development of functioning blood vessels in the mouse placenta is controlled epigenetically: One of the enzymes that modify gene activity using methyl groups is responsible.

16 Jan 2025

Long Reads Show Promise for Diagnosing Rare Genetic Disorders

The cause of rare diseases is increasingly being detected through genome sequencing, which involves reading the entire human DNA by first breaking it into small pieces-short reads.

16 Jan 2025

Protein Shapes Reveal Deeper Evolutionary Relationships

According to a study published in the journal Nature Communications, the three-dimensional form of a protein can be utilized to determine long-standing evolutionary relationships in the tree of life.

16 Jan 2025

Genetic Study Uncovers Growing Threat of Powdery Mildew to Blueberry Crops

The study on E. vaccinii uncovers its evolution and spread, linking genetic diversity to increased threats to blueberry crops and the role of human activities.

16 Jan 2025

Study Identifies Five Root-Lesion Nematodes Affecting New Zealand Maize

A new study has lifted the lid on five species of root-lesion nematodes living in maize crops across New Zealand - and suggested the existence of a hitherto-unsuspected cryptic species.

15 Jan 2025

Unrepaired DNA Damage Can Persist for Years and Lead to Cancer Mutations

While most known types of DNA damage are fixed by our cells’ in-house repair mechanisms, some forms of DNA damage evade repair and can persist for many years, new research shows. This means that the damage has multiple chances to generate harmful mutations, which can lead to cancer.

15 Jan 2025