HOME >> BIOLOGY >> NEWS
Molecular basis of mental retardation uncovered

ately 1 in 2,000 males and 1 in 4,000 females worldwide. Symptoms include mild to moderate cognitive and behavioral deficits as well as subtle facial malformations. In addition, the brain cells, or neurons, of people with the disease have abnormal physical features: their "dendritic spines" - the finger-like projections on the ends of neurons that are required for communication with other neurons - are unusually long and spindly.

The disease originates when genetic mutations in the FMRP gene, which lies on the X chromosome, cause FMRP not to be produced. But unlike the well-studied Down syndrome, which occurs when a portion of a chromosome is duplicated in the womb, much remains unclear about the molecular basis of fragile X syndrome.

"The problem of fragile X is intriguing, because the loss of a single protein causes a variety of behavioral and physical changes," says Jennifer Darnell, Ph.D., lead author of one of the Cell reports and a research assistant professor at Rockefeller. "Before this, the consequences of losing the fragile X mental retardation protein on other brain proteins was unknown."

Previously, it was known that FMRP, first identified a decade ago, binds to messenger RNA (mRNA) molecules - which carry genetic information (DNA) from a body cell's nucleus to its protein-making machinery - yet the specific mRNAs involved as well as the overall purpose of this protein remained elusive.

Now, the researchers present several important clues, which together suggest that FMRP may turn up or down the production of certain brain proteins by binding to their mRNA molecules, and thus influencing the cell's protein-making machinery. This type of protein regulation is a crucial aspect of every cell's life, and in the case of brain cells, is essential for learning and memory formation. A key feature of the current work is the identification of the specific mRNAs that FMRP binds to, as
'"/>

Contact: Whitney Clavin
clavinw@rockefeller.edu
212-327-7900
Rockefeller University
15-Nov-2001


Page: 1 2 3 4

Related biology news :

1. Molecular motor implicated in tissue remodeling
2. 16th EORTC NCI AACR Symposium Molecular Targets and Cancer Therapeutics
3. 16th EORTC-NCI-AACR Symposium on Molecular Targets and Cancer Therapeutics
4. Molecular staples shape a cancer killer
5. Molecular motor myosin VI moves hand over hand, researchers say
6. Molecular therapeutics advance fight against brain cancer
7. Molecular motor shuttles key protein in response to light
8. Molecular traffic cop directs cellular signals
9. Molecular marker predicts success of breast cancer treatment
10. Molecular image of genotoxin reveals how bacteria damage human DNA
11. Molecular mechanism found that may improve ability of stem cells to fight disease

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Molecular basis mental retardation uncovered

(Date:2/12/2015)... 12, 2015   MedNet Solutions , a ... study management systems, has recently bolstered its ... iMedNet as the eClinical ... and healthcare consultants.  Building on the Program,s existing ... and numerous co-marketing opportunities), MedNet,s new and improved ...
(Date:2/9/2015)... , Feb. 9, 2015  Lintec of America ... methods for carbon nanotube (CNT) macrostructures, including sheets, yarns ... Dallas (UTD). Leveraging the vast industrial resources ... Tokyo, Japan , Lintec of America is forming ... Richardson, TX , focusing on scaling up the ...
(Date:2/5/2015)... 2015 NXT-ID, Inc. (NASDAQ: NXTD ... company focused on the growing mobile commerce market, announces ... ) as part of its 2015 marketing and branding ... its new consumer website for Wocketwallet.com earlier this month. ... NXT-ID said, "Our new corporate website naturally showcases our ...
Breaking Biology News(10 mins):MedNet Solutions Announces Key Enhancements To Its iMedNet Partner Program 2Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 2Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 3Lintec announces exclusive license to commercialize innovative carbon nanotube technology from the University of Texas at Dallas 4NXT-ID, Inc. Launches New Corporate Website As Part Of Ongoing 2015 Branding Initiatives For Wocket Smart Wallet 2NXT-ID, Inc. Launches New Corporate Website As Part Of Ongoing 2015 Branding Initiatives For Wocket Smart Wallet 3
(Date:3/3/2015)... , March 3, 2015  Thingee Corporation, a ... be delivering a presentation entitled, "Technology Adoption: Making Reps, ... Thriving through Innovations and Technology ,  in ... 11 to 13, 2015. Audiences looking to learn how ... will want to be in the audience for the ...
(Date:3/3/2015)... 2015 AtheroNova Inc. (OTCQB: AHRO) today announced that ... petitions under Chapter 11 of the U.S. Bankruptcy Code in ... , Santa Ana division (the ... cases are expected to be jointly administered. The ... asset sale process, for all or substantially all of its ...
(Date:3/3/2015)... 03, 2015 Becht Engineering Co., ... it has acquired The CECON Group, Inc., located ... were not announced. , Becht Engineering (http://www.becht.com ... sector including oil and gas production, refining, petrochemical, ... nuclear power sectors. The company has twelve offices ...
(Date:3/3/2015)... March 03, 2015 Cambridge Semantics, the ... Web technology, today announced that it has been named ... Matter in Knowledge Management.’ , To create the ... colleagues, analysts and system integrators who identify organizations dedicated ... the right information to the right people at the ...
Breaking Biology Technology:Thingee to present at 11th Annual Synergistix Users Conference 2AtheroNova and its Subsidiary File for Chapter 11 Bankruptcy Protection 2AtheroNova and its Subsidiary File for Chapter 11 Bankruptcy Protection 3AtheroNova and its Subsidiary File for Chapter 11 Bankruptcy Protection 4Cambridge Semantics Named to KMWorld’s 2015 ‘100 Companies That Matter in Knowledge Management’ 2
Cached News: