Chromosome 4 News and Research

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Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 4, one copy inherited from each parent, form one of the pairs. Chromosome 4 spans more than 191 million DNA building blocks (base pairs) and represents more than 6 percent of the total DNA in cells.

Identifying genes on each chromosome is an active area of genetic research. Because researchers use different approaches to predict the number of genes on each chromosome, the estimated number of genes varies. Chromosome 4 likely contains between 1,300 and 1,600 genes.

Genes on chromosome 4 are among the estimated 20,000 to 25,000 total genes in the human genome.

Zebrafish model of human melanoma reveals new cancer gene

Looking at the dark stripes on the tiny zebrafish you might not expect that they hold a potentially important clue for discovering a treatment for the deadly skin disease melanoma. Yet melanocytes, the same cells that are are responsible for the pigmentation of zebrafish stripes and for human skin color, are also where melanoma originates.

24 Mar 2011

New study to provide better diagnoses for children with developmental disorders

A new UK study will provide better diagnoses for children with developmental disorders caused by changes in their genetic makeup. Scientists and clinicians will build a new national resource of genetic information and symptoms, based on data from 12,000 children who have a serious delay in their physical or mental development or are born with multiple malformations.

23 Mar 2011

Researcher to look for genes that can suppress epileptic seizures in fruit flies

"Exceptional, Unconventional Research Enabling Knowledge Acceleration" - is the name of a rare and competitive grant that Reenan recently won from the National Institutes of Health. Beginning April 1, Reenan will use the four-year, $1.3-million award to look for genes that can suppress seizures in fruit flies that he has cleverly engineered to mimic human epilepsy.

22 Mar 2011

Scientists develop new method for gene regulation study

Scientists at the European Molecular Biology Laboratory in Heidelberg, Germany, have developed a new method for studying gene regulation, by employing a jumping gene as an informant. Published online today in Nature Genetics, the new method is called GROMIT.

22 Mar 2011

Girls with medical conditions causing short stature go undiagnosed

Primary care doctors are less likely to refer short girls than short boys for diagnostic testing that can reveal underlying medical reasons for their short stature, according to a new study of an urban pediatric population in Philadelphia. Girls with medical conditions causing their short stature may go undiagnosed, or may be diagnosed later than boys, limiting timely treatment.

21 Mar 2011

Study unravels molecular mechanism of biomolecule RNA that plays dynamic regulatory role in protein selection

If a big bunch of your brain cells suddenly went rogue and decided to become fat cells, it could cloud your decision-making capacity a bit. Fortunately, early in an organism's development, cells make firm and more-or-less permanent decisions about whether they will live their lives as, say, skin cells, brain cells or, well, fat cells.

21 Mar 2011

Life Technologies enters clinical trials for DNA SBT platform for analysis of Human Leukocyte Antigen system

Life Technologies Corporation today announced that it is the first life science tools provider entering clinical trials to prove the safety and effectiveness of their DNA sequence-based typing (SBT) platform for analysis of the Human Leukocyte Antigen (HLA) system. Submission for 510(k) clearance of this SBT platform will follow completion of the clinical trials, which is anticipated this summer.

21 Mar 2011

RainDance Technologies launches ASDSeq and XSeq Research Screening Panels

RainDance Technologies, Inc., today announced the commercial availability of the ASDSeq™ and XSeq™ Research Screening Panels. Developed in collaboration with Emory University and Greenwood Genetic Center, the two comprehensive panels enable researchers to simultaneously interrogate key genes known to be linked to X-chromosome disorders and syndromic forms of Autism Spectrum Disorder (ASD) using next-generation sequencing.

18 Mar 2011

Celera reports net revenue of $34.9 million for fourth quarter of 2010

Celera Corporation today reported net revenues of $34.9 million for the fourth quarter of 2010 that ended December 25, 2010, compared to $39.2 million for the prior year quarter.

18 Mar 2011

March of Dimes to honor fragile X syndrome researcher with Lifetime Achievement award

A world-renowned fragile X syndrome researcher, who was the first to identify the long-sought genetic abnormality responsible for this disorder, will be honored by the March of Dimes.

16 Mar 2011

AbCheck licenses CELEXION yeast display technology for an industry first

AbCheck s.r.o., the multi antibody discovery platforms company, announced today the company has licensed a proven antibody yeast display technology from CELEXION LLC (Cambridge, MA, USA). The addition of this platform to AbCheck's current phage display platform places the company as the World's only antibody discovery specialist leveraging the advantage of working with both phage and yeast display technologies.

14 Mar 2011

Genetic variant contributes to higher risk of lung cancer, increases tendency to smoke more

Norwegian researchers have discovered genes that increase not only one's risk of lung cancer, but perhaps one's urge to smoke as well. Now these researchers are working on developing a blood test for lung cancer.

11 Mar 2011

Research: CREBBP mutation may help cancer resist steroid treatment, fuel ALL's return

Despite dramatically improved survival rates for childhood acute lymphoblastic leukemia, relapse remains a leading cause of death from the disease. Work led by St. Jude Children's Research Hospital investigators identified mutations in a gene named CREBBP that may help the cancer resist steroid treatment and fuel ALL's return.

10 Mar 2011

New study reveals role of INK4, ARF proteins in Burkitt's lymphoma

Burkitt's lymphoma is one of the most aggressive tumors affecting humans. Multiple alterations in genes that regulate cell proliferation rate explain its aggressive behavior.

8 Mar 2011

Down’s syndrome could be detected in mother’s blood test

European researchers have devised a blood test that could help pregnant women avoid the invasive procedures now used to diagnose Down syndrome prenatally and make the diagnosis with 100% accuracy. The study report was published this Sunday in Nature Medicine.

7 Mar 2011

Novel gene therapy can promote removal of amyloid plaques and prevent Alzheimer's disease

Gene therapy that boosts the ability of brain cells to gobble up toxic proteins prevents development of Alzheimer's disease in mice that are predestined to develop it, report researchers at Georgetown University Medical Center. They say the treatment - which is given just once - could potentially do the same in people at the beginning stages of the disease.

5 Mar 2011

Research findings likely to improve understanding of gene regulation in humans

Many multi-cellular animals use sex chromosomes to determine sex. In fruit flies and in humans, this produces XX for females and XY for males. Cellular mechanisms then kick into gear to compensate the two-to-one imbalance of X-linked genes in females and males.

4 Mar 2011

Chromosome 4 News and Research

Further Reading

Zebrafish model of human melanoma reveals new cancer gene

New study to provide better diagnoses for children with developmental disorders

Researcher to look for genes that can suppress epileptic seizures in fruit flies

Scientists develop new method for gene regulation study

Girls with medical conditions causing short stature go undiagnosed

Study unravels molecular mechanism of biomolecule RNA that plays dynamic regulatory role in protein selection

Life Technologies enters clinical trials for DNA SBT platform for analysis of Human Leukocyte Antigen system

RainDance Technologies launches ASDSeq and XSeq Research Screening Panels

Celera reports net revenue of $34.9 million for fourth quarter of 2010

March of Dimes to honor fragile X syndrome researcher with Lifetime Achievement award

AbCheck licenses CELEXION yeast display technology for an industry first

Genetic variant contributes to higher risk of lung cancer, increases tendency to smoke more

Research: CREBBP mutation may help cancer resist steroid treatment, fuel ALL's return

New study reveals role of INK4, ARF proteins in Burkitt's lymphoma

Down’s syndrome could be detected in mother’s blood test

Novel gene therapy can promote removal of amyloid plaques and prevent Alzheimer's disease

Research findings likely to improve understanding of gene regulation in humans

Hemispherx, Chronix jointly file US patent application for CFS blood test

Novel study deepens understanding of how chromosome replication works

Groundbreaking discovery in lymphoma research

Shaping the Future of Neuroscience: A Conversation with Atlas Antibodies on the MolBoolean™ and the Impact of SfN 2024

How the Arts Reshape Brain Function: Susan Magsamen on the Future of Neuroaesthetics

Inside the Alzheimer's Association: Dr. Heather Snyder on Driving Research and Collaboration

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