News tagged with polycomb group proteins
Jarid2 may break the Polycomb silence
Historically, fly and human Polycomb proteins were considered textbook exemplars of transcriptional repressors, or proteins that silence the process by which DNA gives rise to new proteins. Now, work by a ...
Apr 30, 2012 |
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Telltale moss: Mother Nature gives clues for improving stem cell techniques
Hikers know that moss on a tree trunk always points north. According to new research by Israeli and German scientists, this ancient plant may also provide a new "compass" for stem cell research, telling scientists how better ...
Sep 29, 2009 |
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Search results for polycomb group proteins
Histone modifications control accessibility of DNA
(PhysOrg.com) -- n an advanced online publication in Nature Structural & Molecular Biology scientist from Dirk Schübeler's group from the Friedrich Miescher Institute for Biomedical Research provide a geno ...
Jul 14, 2010 |
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Tags on, tags off: Scientists identify new regulatory protein complex with unexpected behavior
During embryonic development, proteins called Polycomb group complexes turn genes off when and where their activity must not be present, preventing specialised tissues and organs from forming in the wrong ...
May 03, 2010 |
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Scientists discover key step for regulating embryonic development
Deleting a gene in mouse embryos caused cardiac defects and early death, leading researchers to identify a mechanism that turns developmental genes off and on as an embryo matures, a team led by a scientist at The University ...
Medicine & Health / Medical research
Apr 22, 2010 |
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Stanford scientists find new marker to identify severe breast cancer cases
Women with breast cancer whose tumors express high levels of a particular genetic marker are significantly more likely to die from their disease than are those with more normal levels, according to researchers at Stanford ...
Apr 14, 2010 |
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Sugarcoating fruit fly development
Proteins are the executive agents that carry out all processes in a cell. Their activity is controlled and modified with the help of small chemical tags that can be dynamically added to and removed from the protein. 25 years ...
May 29, 2009 |
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Gene packaging tells story of cancer development
To decipher how cancer develops, Johns Hopkins Kimmel Cancer Center investigators say researchers must take a closer look at the packaging.
Biology /
Dec 04, 2008 |
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Biologists theorize role for DNA packaging in stem cell development
MIT biologists have discovered that the organization of DNA's packing material plays a critical role in directing stem cells to become different types of adult cells.
Biology /
Nov 06, 2008 |
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Putting microRNAs on the stem cell map
Embryonic stem cells are always facing a choice—either to self-renew or begin morphing into another type of cell altogether. It's a tricky choice, governed by complex gene regulatory circuitry driven by a handful of key regulators ...
Biology /
Aug 07, 2008 |
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RNA may play larger role in cell's gene activity
Large, seemingly useless pieces of RNA - a molecule originally considered only a lowly messenger for DNA - play an important role in letting cells know where they are in the body and what they are supposed to become, researchers ...
Medicine & Health / Medical research
Jun 28, 2007 |
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Opening and closing the genome
At any given time, most of the roughly 30,000 genes that constitute the human genome are inactive, or repressed, closed to the cellular machinery that transcribes genes into the proteins of the body. In an average cell, only ...
Biology /
Feb 22, 2007 |
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List of search results for polycomb group proteins
