Articles tagged with Cell Cycle
A new study reveals that the SAR11 microbe's streamlined genome is key to its dominance in oceans, recycling organic carbon and supporting 50% of global photosynthesis. With a compact genetic makeup, SAR11 can survive in low-nutrient environments and efficiently reproduce by consuming dissolved organic matter.
Researchers found that NIPA levels act as a switch to regulate cell division by degrading cyclin B1 during the 'resting' phase. Blocking NIPA causes premature cell division, leading to unhealthy daughter cells. The study sheds light on the role of SCFNIPA in controlling mitosis.
Researchers identified genes in yeast that cooperate to prevent DNA mutations and genome rearrangements caused by oxygen radicals. This discovery may lead to new strategies for alleviating clinical symptoms of human diseases associated with genetic deficiencies of DNA damage responses, including potential cancer therapies.
Scientists have developed a new fluorescent protein probe to study cyclic AMP activity in living cells. The probe allows for real-time monitoring of cyclic AMP's impact on cellular responses, revealing its importance in various biological processes.
Scientists at Virginia Tech have developed a new class of inhibitors that target the Pin1 enzyme, which regulates cell division in cancer cells. The researchers found that one of the inhibitors was 23 times more effective than a similar compound, offering promise for treating various types of cancer including breast and prostate cancer.
Researchers at Boston College are studying the molecular mechanisms of B-1a cells, which can lead to autoimmune diseases and leukemias like chronic lymphocytic leukemia. The new NIH-funded program project aims to understand how these cells proliferate and enter the cell cycle.
Researchers identified frequent BRAF mutations in intermittent sun-exposed skin melanomas, but rare mutations in chronically sun-damaged or unseen skin. Additionally, bladder cancer cell lines showed defective checkpoint function, suggesting barriers to carcinogenesis. These findings may inform therapeutic strategies for these diseases.
The Mayo Clinic research reveals a molecular mechanism involved in cell cycle regulation of the BRCA1 tumor suppressor gene. The team found that phosphorylation is required at certain stages to activate proteins associated with the BRCA1 gene.
Researchers at UGA discovered a gene called CUL-4 that regulates DNA replication and prevents uncontrolled cell growth. The study used the tiny worm Caenorhabditis elegans as a model organism and found that CUL-4 promotes the degradation of a protein required for DNA replication initiation.
Researchers from Virginia Tech have validated a mathematical model of cell division using experiments on frog egg extracts. They found that the control system is bi-stable and hysteretic, requiring specific levels of cyclin to regulate mitosis.
Scientists discovered that a protein called ATR protects fragile sites from breaking during DNA replication, controlling genome stability. Fragile site breaks are common in tumor cells and near genes associated with tumors, suggesting defects in the ATR pathway may contribute to cancer progression.
A recent study found that high levels of cyclin E are closely associated with aggressive breast cancer, making it a powerful predictive marker. The presence of low molecular weight forms of cyclin E also showed strong prognostic value, indicating a higher risk of recurrence and spread.
Researchers found that Clb2 is the real trigger for yeast cell division, contradicting previous findings on Clb5. This discovery has implications for treating cancer, as it reveals a new way to understand the cell cycle mechanism.
Researchers discovered that RING Finger proteins play a crucial role in targeting cellular molecules for proteolysis during the cell cycle. This process is essential for regulating cell growth and preventing cancer. The study provides new insights into how cells recognize which proteins to eliminate and when.
Leland Hartwell received the Nobel Prize for his work on cell cycle control, discovering over 100 genes involved in regulating cell division. His research has led to a deeper understanding of normal cellular function and the molecular basis of diseases like cancer.
Scientists have developed a technique to map the circuitry underlying fundamental life processes, shedding light on diseases such as cancer. The study reveals a circular network of regulators regulating regulators controlling the cell cycle, providing new insights into cellular processes and potential therapeutic targets.
Recent research reveals a master regulator protein that prevents DNA replication at the wrong time in the cell cycle, ensuring each progeny cell has the correct number of gene-bearing chromosomes. This discovery could lead to new design principles for operating autonomous devices.