Proteins are the key factors taking actions in living cells. Their level should be kept constant. This is done by incorporating several modes of regulation.

Feb 8, 2010 - Asaf Peer

There are many techniques for increasing the expression of a specific protein in a cell. As for turning expression down, a new method allows for rapid decreases.

Mar 15, 2008 - Kenneth Rosen

Each gene encodes instructions for proteins but genes can be turned off or on and non-genetic or epigenetic factors can determine what genes do or don't do.

Dec 7, 2011 - Donald Reinhardt

The typical eukaryotic cell contains many different types of ribonucleic acid (RNA). These RNA molecules do much more than simply direct the synthesis of proteins.

Mar 13, 2010 - Kenneth Rosen

Research on human hair reveals peaks and valleys in human sleep cycles.

Aug 24, 2010 - Jenny Ashford

Since its discovery in 1998, RNAi has become a valuable tool in medical research, and is under investigation for its potential use in the treatment of genetic diseases.

Aug 18, 2009 - Lindsay Napier

MicroRNAs regulate gene expression and are playing an emerging role in the diagnosis, prognosis and therapeutic strategies for many cancers.

Nov 23, 2009 - David Olle

Each gene encodes instructions for proteins but genes can be turned on or off and non-genetic or epigenetic factors influence what genes can or cannot do.

Oct 24, 2011 - Donald Reinhardt

As it turns out DNA is only a storage unit - RNA, it appears, calls all the shots.

Jan 19, 2011 - Marcia Stone

Besides mediating between the DNA and proteins, RNA has a function in regulating the levels of proteins in the cell. This regulation is critical for the cell's behavior.

Aug 10, 2009 - Asaf Peer

What are deoxyribonucleic and ribonucleic acid made of, and how are these big molecules of genetic information built? This article explains the basics.

Oct 4, 2007 - Tami Port

When a specific type of cell needs a certain protein or other gene product to be synthesized, it can fine-tune the levels of production in a multitude of ways.

Nov 22, 2009 - Kenneth Rosen

Researchers discovered that cancer cells need certain genes to survive. Results will advance the development of targeted, less harmful treatments for patients.

Jan 26, 2010 - Laura Owens

Some cases of Parkinson disease are inherited. The gene alterations identified may point to cellular pathways involved in development of this neurodegenerative disorder.

Nov 11, 2009 - Kenneth Rosen

DNA is a fascinating molecule - it's strong, it's long, it's found in viruses, and offers insight into the ancestry of modern humans.

Jan 8, 2009 - Barbara Melville

Mucins are large glycoproteins that make up mucus, but they have also been found to take part in cancer and other disorders.

Mar 29, 2010 - Alicia Mae Prater

Tryptophan is an amino acid made with the help of 5 genes controlled within a repressible gene system that can be inactivated by the tryptophan itself.

Oct 30, 2011 - Donald Reinhardt

The result of these genetic mistakes can range from no effect on the organism to the production a defective cellular protein that may have disastrous implications.

May 18, 2008 - Tami Port

A recent study on gene expression in humans with hypertension was reported by the media as being vital in finding a cure for hypertension.

Nov 2, 2011 - Ken Chan

DNA is genetic centre that dictates the synthesis of proteins and RNA molecules that make us who we are. DNA or RNA is found in every organism on earth.

May 1, 2010 - Alex Leeper