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Scientists Discover Fossils of Ancient Chromosomes in the Remains of Woolly Mammoth

A team led by scientists from Baylor College of Medicine, University of Copenhagen, and Centre Nacional d'Anàlisi Genòmica and Centre for Genomic Regulation report discovering fossils of ancient chromosomes in the remains of a woolly mammoth that died 52,000 years ago.

12 Jul 2024

Understanding How Motorized Processes Shape Chromosome Structures and Influence Cellular Functions

Researchers at Rice University are making strides in understanding how chromosome structures change throughout the cell's life cycle.

4 Jul 2024

Histone H3K9 Methylation Found to Act as a Dimmer Switch for Gene Regulation

Researchers led by Kannosuke Yabe, Asuka Kamio, and Soichi Inagaki of the University of Tokyo have discovered that in thale cresses histone H3 lysine-9 (H3K9) methylation, conventionally thought to be a mark of turning off gene transcription, can also turn on gene expression via the interactions of two other proteins and histone marks.

27 Jun 2024

Mapping Gene Targets of HNF4A and HNF1A in Human Pancreatic Beta Cells and Liver Cells

Scientists have generated a comprehensive map of the gene targets regulated by the transcription factors HNF4A and HNF1A in human pancreatic beta cells and liver cells.

26 Jun 2024

Scientists Identify Gene Region that Fuels Asthma Inflammation

Pollen and house dust mites are two common allergens that cause respiratory distress in asthma patients. But type-2 helper T (Th2) cells and group-2 innate lymphoid cells (ILC2s) release a class of proteins known as type-2 cytokines in response to a variety of asthma triggers. GATA-binding protein 3 (GATA3) is essential for the maturation of Th2 and ILC2.

25 Jun 2024

First Evidence of Oocyte Cohesion Rejuvenation Discovered in Fruit Flies

A Dartmouth study conducted on fruit flies reports the first evidence in any organism that oocytes-;the cells that become eggs-;regularly rejuvenate the critical protein linkages that bind chromosomes together.

13 Jun 2024

Critical NPC Protein Nup358 Linked to Myeloid Disorders

Nuclear pore complexes (NPCs) are channels composed of multiple proteins that ferry molecules in and out of the nucleus, regulating many critical cellular functions, such as gene expression, chromatin organization and RNA processes that influence cell survival, proliferation, and differentiation.

6 Jun 2024

Coordinated Proteins Aid the Immune System in Detecting and Destroying Threats

Bacteria, parasites, and viruses—the immune system tackles them all. Cells known as macrophages are at the forefront of the human immune response, recognizing intruders and controlling how the entire immune system responds.

6 Jun 2024

Researchers Advance Single-Molecule DNA Sequencing Techniques

In recent years, technologies that allow scientists to investigate a person's DNA at single-molecule resolution have greatly increased the knowledge of the human genome, microbiome, and the genetic basis of disease.

5 Jun 2024

MUSIC Map Uncovers Accelerated Aging in Brain Cells Linked to Alzheimer’s

Researchers observed sex-specific differences in the aging process of certain brain cells.

14 May 2024

Decoding Chromatin Modifications: A Breakthrough in Epigenome Editing

An epigenome editing platform and a method to program nine major chromatin modifications.

14 May 2024

New Tool Precisely Edits Epigenetic Modifications

Powerful epigenetic editing technology was developed as a result of research by the Hackett group at EMBL Rome. This technology allows for the precise programming of chromatin modifications.

10 May 2024

Epigenomic Analysis Reveals Potential Treatment Avenues for ALS

For most patients, it's unknown exactly what causes amyotrophic lateral sclerosis (ALS), a disease characterized by degeneration of motor neurons that impairs muscle control and eventually leads to death.

3 May 2024

New Tool Predicts How Proteins Interact with RNA Structures

Scientists at the Italian Institute of Technology and Aarhus University have figured out how specific proteins can bind to G-quadruplexes, which are unique RNA structures.

4 Apr 2024

New Study Unveils Mechanism Behind Mice Ovary Development

Scientists at the Francis Crick Institute have provided insight into the proteins governing the development of mice's ovaries both prenatally and postnatally. This might help comprehend the progression of female infertility.

25 Mar 2024

New Approach to Constructing Human Artificial Chromosomes Avoids Unintended Multimerization

Constructing human artificial chromosomes (HACs) in budding yeast overcomes the long-standing problem of uncontrolled multimerization – the rampant joining of similar molecules – and results in HACs that are large, stable, and structurally well-defined, researchers report.

22 Mar 2024

Study Identifies Protein Key to Preserving Neuronal Identity

Epigenetic processes allow different cell types to emerge from a single genome. Throughout development, cells differentiate and acquire distinct characteristics by expressing the same genome in different ways.

13 Mar 2024

Breakthrough Study Reveals Key Mechanism in Passing Epigenetic Information During Cell Division

A research team led by Professor Yuanliang ZHAI at the School of Biological Sciences, The University of Hong Kong collaborating with Professor Ning GAO and Professor Qing LI from Peking University, as well as Professor Bik-Kwoon TYE from Cornell University, has recently made a significant breakthrough in understanding how the DNA copying machine helps pass on epigenetic information to maintain gene traits at each cell division.

11 Mar 2024

'lncREST' RNA Unveiled as Key Player in DNA Replication Stress Response

Researchers at Cima Universidad de Navarra have discovered that a ribonucleic acid that does not contain information to make proteins (long non-coding RNA) plays a crucial role in signalling and repairing errors in DNA replication during cell division.

5 Mar 2024

Unlocking RNA Secrets: New Method Exposes Gene Expression's Hidden Hurdles

A new study demonstrates that a method may identify, for the first time, the frequency and precise location of a molecular occurrence known as "backtracking" across the genetic material (genome) of any species.

12 Feb 2024