Navigation Links
Retrotransposons in Medical News

International team cracks mammalian gene control code

... and leave copies of themselves behind. "The dogma in the field is that retrotransposons are only active in cancer cells and cells that turn into eggs and sperm," Dr Faulkner said. "Our results showed that retrotransposons that can no longer move around the genome may still be expressed in a ...

BWF awards $11.2 million to support physician-scientists

... regulators of the osteoclast differentiation program Kathleen H. Burns, M.D., Ph.D. Johns Hopkins University Investigating the role of retrotransposons in hematopoietic neoplasias Daniel Cahill, M.D., Ph.D. Harvard Medical School Translational molecular genetic analyses of chemotherapeutic ...
Retrotransposons in Biological News

New research shows how gene function drives natural selection in important class of genetic elements

... leukosis and feline leukemia. "Because LTR retrotransposons are abundant and impact host genomes, we wanted ... The researchers examined selection pressure on retrotransposons using Oryza sativariceas a model plant genome. ... inserted. "Overwhelmingly, we found that LTR retrotransposons are under significant evolutionary constraint, by ...

Mapping a clan of mobile selfish genes

... some become unable to make copies of themselves. To identify the Alu retrotransposons that are still capable of moving around, Devine and graduate student E. ... transposon-mediated threat to our genomes," Devine says. The term retrotransposons comes from how they replicate: first, the DNA is transcribed (copied) into ...

Kansas state flower receives scientific attention

... said. "We are trying to understand the circumstances that caused retrotransposons to become active and proliferate in these sunflowers and the evolutionary ... of these proliferation events," Ungerer said. He also noted that retrotransposons are not just found in sunflowers but in virtually all plants and animals, ...

Darwin's legacy in 21st century biology

... Lunch: 12:15 to 1:30 Dr. Haig Kazazian, Seymour Gray Professor of Molecular and Medical Genetics, University of Pennsylvania School of Medicine. retrotransposons in humans. Dr. Nancy Cox, Professor, Department of Human Genetics, Chief of the Section of Genetic Medicine University of Chicago. Genetic ...

Researchers solve piece of large-scale gene silencing mystery

... nucleotide sequence. In nature, cells use RNAi to silence "junk DNA," noncoding regions of the DNA, and "selfish DNA" such as virus-derived retrotransposons (jumping genes) that can be detrimental if activated. In the lab, Pikaard and his collaborators use RNAi to "knockdown" expression of target ...

New gene-silencing pathway found in plants

... generated by Pol IV. By acting as a scaffold for these siRNAs, the Pol V transcripts enable silencing of adjacent, virus-derived genes such as retrotransposons (jumping genes) that can be detrimental if activated. Pikaard and colleagues were able to confirm that both Pol IV and Pol V are necessary for ...

Insight into DNA's 'weakest links' may yield clues to cancer biology

... containing "retrotransposons" called Ty elements. retrotransposons are mobile gene segments that duplicate ... is in a single-stranded form, multiple copies of retrotransposons are more likely to interact, forming a kink in ... improperly excised and repaired by rejoining with retrotransposons on other chromosomes. "The current findings ...

New RNA polymerase discovered in plants

... RNAs called siRNAs corresponding to highly repeated 5S rRNA genes and retrotransposons (jumping genes) are completely eliminated and DNA methylation at 5S genes and retrotransposons is lost. Methylation is a vital process involving a chemical ...
Retrotransposons in Biological Definition

Retrovirus

... transcriptase activity outside of retroviruses has been found in almost all eukaryotes, enabling the generation and insertion of new copies of retrotransposons into the host genome. Because reverse transcription is missing the usual "proofreading" of DNA transcription, this kind of virus mutates very ...
Retrotransposons in Biological Dictionary

Retrotransposons

... retrotransposons are genetic elements that can amplify ... often a principal ... 1.1 Class I: retrotransposons . 1.1.1 Retroviruses as transposable elements ... Initially retrotransposons copy themselves to RNA (transcription) but, in ....

Retrovirus

... and more. ... A retrovirus is any virus belonging to the ... 1960's: Howard Temin knew that retrovirus genomes were composed of RNA and ... retrotransposons - endogenous retrovirus -like genetic elements: ... In addition to RNA, retrovirus particles also contain the enzyme reverse ... When a ...

More>>

Other Contents
(Date:12/17/2014)... -- Expectant parents should leave prenatal picture-taking to medical ... Use of ultrasound imaging and heartbeat monitors to get ... agency warns. "Although there is a lack ... and heartbeat monitors, prudent use of these devices by ... FDA biomedical engineer, said in an agency news release. ...
(Date:12/17/2014)... HealthDay Reporter , TUESDAY, Dec. 16, ... America, and work commitment is a big reason why, new ... said Dr. Mathias Basner, an assistant professor of sleep and ... of Medicine. A time-use survey of nearly 125,000 Americans, ... main activity exchanged for sleep. Short sleepers -- those who ...
(Date:12/15/2014)... 15, 2014 South Florida’s leading urgent care ... can be a daze of hassle, hustle, and bustle that ... decking halls, to burns when making special meals and heartburn ... can happen at any time. To prevent this season of ... made a list of helpful and healthful holiday tips to ...
(Date:12/15/2014)... News) -- Expert pilots process visual information more efficiently ... better decisions during landings, a new study shows. ... pilots to master, and 36 percent of all airplane ... final approach and landing. Researchers monitored the brain ... pilots while they were at the controls of a ...
(Date:12/15/2014)... 15, 2014 At the leading, long-established ... AutismOne and Focus Autism will welcome ... research on the effects of toxins to children’s health, ... information. , Luminaries such as Dr. Lucija Tomljenovic ... with esteemed, credentialed colleagues of the United States to ...
Breaking Medicine News(10 mins):Health News:FDA Warns Against Fetal 'Keepsake' Videos 2Health News:Work Steals Valuable Sleep Time, Study Finds 2Health News:Work Steals Valuable Sleep Time, Study Finds 3Health News:MD Now Urgent Care Presents Healthy Holiday Tips 2Health News:MD Now Urgent Care Presents Healthy Holiday Tips 3Health News:Study Shows Why Expert Pilots Are Experts 2Health News:AutismOne and Focus Autism Collaborate on Scientific Conference; International Group of Researchers to Present in Chicago, May 2015 2Health News:AutismOne and Focus Autism Collaborate on Scientific Conference; International Group of Researchers to Present in Chicago, May 2015 3
(Date:12/17/2014)... , Dec. 15, 2014 The ... make it easier to detect and prevent counterfeit ... Today the agency started performing an in-house ... will validate the authenticity of purchased microcircuits while ... new quality control measures will be conducted at ...
(Date:12/17/2014)... RALEIGH, N.C. , Dec. 16, 2014 ... has licensed its PerformTek biometric technology to industry leaders ... their highly accurate, clinically validated, biometric wearable products. These ... January 6-9 in Las Vegas . ... the technology is accurate, flexible and robust – with ...
(Date:12/17/2014)... Dec. 16, 2014  Automation is fundamentally transforming ... evident than at international borders. Over the past ... have allowed veteran travelers to self process through ... (APC) Kiosks at an increasing number of airports, ... According to Maxine Most , ...
Breaking Biology News(10 mins):Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 2Defense Logistics Agency Launches DNA Marking Capability to Strengthen Microcircuit Supply Chain 3Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2
Other TagsOther Tags