After immunofluorescent staining with two antibodies, the protein XCAP-D2 is evident in red on the lampbrush chromosomes (green) in the nucleus of a frog oocyte. The red signal is associated with highly condensed but transcriptionally inactive regions, while the green indicates long loops of intense transcription.
Photo courtesy of Michel Bellini
Researchers studying the nuclei of frog oocytes in early stages of meiosis -- the cell division that gives rise to germ cells -- have found that two key proteins remain apart at a crucial time before condensation occurs. One of the proteins, they say, may be important in the early organization of chromosomes and later may recruit the other.
In the August issue of the journal Chromosome Research, scientists at the University of Illinois at Urbana-Champaign detail how they used antibodies to the proteins, XCAP-E and XCAP-D2, and confocal laser scanning microscopy to zero in on the proteins’ precise locations inside the nuclei of gametes of the African frog Xenopus laevis.
(The research will be on display as a poster presentation Aug. 17-22 during the Gorden Research Conference on Plasmid & Chromosome Dynamics in Tilton, N.J.)
Jim Barlow | UIUC
More genes are active in high-performance maize
19.01.2018 | Rheinische Friedrich-Wilhelms-Universität Bonn
How plants see light
19.01.2018 | Albert-Ludwigs-Universität Freiburg im Breisgau
On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.
We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...
What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...
For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.
Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...
At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...
Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...
08.01.2018 | Event News
11.12.2017 | Event News
08.12.2017 | Event News
19.01.2018 | Materials Sciences
19.01.2018 | Health and Medicine
19.01.2018 | Physics and Astronomy