Chromosome 3 News and Research

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Humans normally have 46 chromosomes in each cell, divided into 23 pairs. Two copies of chromosome 3, one copy inherited from each parent, form one of the pairs. Chromosome 3 spans almost 200 million base pairs (the building blocks of DNA) and represents approximately 6.5 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 3 likely contains between 1,100 and 1,500 genes.

Genes on chromosome 3 are among the estimated 20,000 to 25,000 total genes in the human genome.

ChromoCure releases development plan for CS300 Chromosomal Scanner

ChromoCure, Inc. (PINKSHEETS: KKUR) released today its development plan for its next generation of chromosomal scanners. The new system has been given the name "CS300" as the next iteration of its current CS200 Chromosomal Scanner design.

1 Sep 2009

Study provides insights into genes that help maintain youthfulness of the skin

In the new print issue of Nature Genetics, scientists in Singapore and Germany report that mutations in the PYCR1 gene cause the rare genetic condition that results in premature skin aging and that is known as "wrinkly skin syndrome."

1 Sep 2009

Genetic variants on chromosome 9q may influence asthma development in Mexican children

Genetic variants in a region on chromosome 9q may influence asthma development in Mexican children, according to research published in the August 28 issue of the open-access journal PLoS Genetics.

28 Aug 2009

Research study associates KIAA0319 gene on Chromosome 6 with variability in language abilities

A new candidate gene for Specific Language Impairment (SLI) has been identified by a research team directed by Mabel Rice from the University of Kansas, in collaboration with Shelley Smith, University of Nebraska Medical Center, and Javier Gayán of Neocodex, Seville, Spain.

28 Aug 2009

HLA-Cw*0602 gene variation detected as a high risk for psoriasis

A specific genetic region that has been increasingly identified as the strongest genetic link to psoriasis has an even more significant role in the chronic skin disease than has been suspected, University of Utah medical researchers show in a new study.

27 Aug 2009

Mutations of gene regulators can result in growth disorders

A specific gene is particularly frequently involved in the development of short stature. Researchers in Heidelberg have now discovered that sequences of genetic material on the X and Y chromosome that regulate this gene are also crucial for growth in children.

26 Aug 2009

Researchers identify causative gene for features of 2q32q33 microdeletion syndrome

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24 Aug 2009

Inc. magazine ranks Signature Genomic Laboratories no.1012 on its fastest-growing private companies ranking list

Inc. magazine ranked Signature Genomic Laboratories no. 1012 on its third annual Inc. 5000, an exclusive ranking of the nation's fastest-growing private companies. The company, which performs microarray-based diagnostic genetic testing of chromosome abnormalities in individuals with unexplained mental retardation and/or birth defects, experienced three-year sales growth of 302.9%, more than twice that of the Inc. 5000 industry median and over 12 times the industry benchmark. Signature was also ranked 70th of companies in the healthcare sector.

21 Aug 2009

More evidence that genes increase a smokers' risk of lung cancer

Cancer Research UK funded scientists have confirmed that inherited changes in certain regions of the genome can increase a smokers' risk of developing lung cancer lung cancer, and determine the type of lung cancer that develops. Their results were published in this week's edition of the journal Cancer Research*.

21 Aug 2009

Bayer Crop Science uses Chromatin's proprietary mini-chromosome technology

Chromatin Inc. and Bayer CropScience announced today that they have entered into a technological alliance and license agreement to use Chromatin’s proprietary mini-chromosome technology for crop improvement.

20 Aug 2009

Discovery of inherited gene variants that account for 37 percent of childhood acute lymphoblastic leukemia

Scientists at St. Jude Children’s Research Hospital have identified inherited variations in two genes that account for 37 percent of childhood acute lymphoblastic leukemia (ALL), including a gene that may help predict drug response.

16 Aug 2009

Protein plays unexpected role protecting chromosome tips

A protein specialist that opens the genomic door for DNA repair and gene expression also turns out to be a multi-tasking workhorse that protects the tips of chromosomes and dabbles in a protein-destruction complex, a team lead by researchers at The University of Texas M. D. Anderson Cancer Center reports in the Aug. 13 edition of Molecular Cell.

13 Aug 2009

Discovery of genetic mutations that increase risk of schizophrenia

In collaboration with colleagues from across Europe, researchers from the University of Copenhagen and the Mental Health Services in the Capital Region of Denmark have found mutations in the human genome that lead to an increased risk of developing schizophrenia.

11 Aug 2009

Decode Genetics announces Q2 2009 financials

deCODE genetics (Nasdaq: DCGN) today announced its consolidated financial results for the quarter ended June 30, 2009. A conference call to discuss these results and recent developments in the company's business will be webcast live tomorrow, Tuesday, August 11, at 8:00am Eastern Daylight Time/12 noon GMT/1pm British Summer Time (details below).

10 Aug 2009

Unlikely genetic suspect implicated in Dandy-Walker malformation

A genetic search that wound its way from patients to mouse models and back to patients has uncovered an unlikely gene critically involved in a common birth defect which causes mental retardation, motor delays and sometimes autism, providing a new mechanism and potentially improving treatment for the disorder.

9 Aug 2009

Discovery of possible mechanisms to protect against genetic alterations, diseases

Peering into the DNA of tiny yeast, researchers at the Moores Cancer Center at the University of California, San Diego and the San Diego Branch of the Ludwig Institute for Cancer Research have pinpointed a large number of genes that can prevent a type of genetic rearrangement that may lead to cancer and other diseases.

6 Aug 2009

Smoking marijuana has toxic effects on cells

In a finding that challenges the increasingly popular belief that smoking marijuana is less harmful to health than smoking tobacco, researchers in Canada are reporting that smoking marijuana, like smoking tobacco, has toxic effects on cells.

6 Aug 2009

Protein DNA repair complex key to avoiding DNA repair mistakes

As the body creates antibodies to fight invaders, a three-protein DNA repair complex called MRN is crucial for a normal gene-shuffling process to proceed properly, University of Michigan research shows.

5 Aug 2009

New insight into human ciliopathy

In the September 1st issue of G&D, Dr. Karen Oegema (UCSD) and colleagues identify the molecular basis of the lethal developmental disorder, hydrolethalus syndrome, and reveal that hydrolethalus syndrome actually belongs to the emerging class of human ciliopathy diseases.

4 Aug 2009

Genetic link to ovarian cancer found

Scientists have located a region of DNA which - when altered - can increase the risk of ovarian cancer according to research published in Nature Genetics today.

3 Aug 2009