Sentences with phrase «of a single gene change»

At the core of this cell behavior is how the loss of that single gene changes activation levels of dozens of other genes, suppressing genes associated with metastatic disease and increasing activity of genes linked to normal tissue.

Around 2.5 million years ago, the erroneous duplication of a single gene changed the course of our brains» evolution forever.

The unintended consequence of a single gene change pale in comparison to the negative health consequences of the intensive inbreeding required to produce the extreme physical features of the fad breeds of today.

Not exact matches

Alpha -1-antitrypsin deficiency (A1ATD) is the most common genetic disease of the liver, and is caused by a single nucleotide change in the gene that codes for alpha -1-antitrypsin (A1AT), an enzyme inhibitor that normally protects bodily tissues.

To generate the models, Jackson created two mutated versions of the PrP - coding gene by changing a single codon — one of the three - nucleotide «words» in genes that code for the various amino acids in proteins.

The team found that a mutation in a single pair of nucleotides in the gene causes seed coat permeability — that is, a change in one pair out of the approximately 1 billion base pairs that make up the soybean genome.

Cystic fibrosis, achondroplasia, phenylketonuria and Huntington's disease are each caused by simple changes in the sequence of a single gene.

According to study co-author Larry J. Young of Emory University, the results provide evidence in a comparatively simple animal model that changes in the activity of a single gene profoundly can change a fundamental social behavior of animals within a species.

The researchers found that the blond hair commonly seen in Northern Europeans is caused by a single change in the DNA that regulates the expression of a gene that encodes a protein called KITLG, also known as stem cell factor.

After analyzing brain tissue samples, the researchers identified an area of the gene where a single change reduced BDNF levels in the hypothalamus, a key area that controls eating and body weight.

The genomics era has had a profound impact on life science research, leading to significant developments such as the use of expression quantitative trait loci (eQTLs), which link polymorphisms in single genes to quantifiable changes in gene expression associated with specific diseases.

«Our work clearly shows that predisposition to obesity and increased body mass index is not due to a single gene or genetic change,» says senior study author Elizabeth Speliotes, M.D., Ph.D., M.P.H, assistant professor of internal medicine and computational medicine and bioinformatics at the University of Michigan Health System.

Hereditary predisposition to cancer is sometimes due to a single high - risk genetic change, like a mutation in the BRCA1 or BRCA2 genes for breast cancer, but most of the time, the disease is the result of multiple gene variants that add up, environmental risk factors, and a big element of chance.

«For species that have a very rapidly changing environment, this process of co-option of single genes may be fairly important.

Gene moonlighting can occur merely through changes in expression, which may result from as little as a single mutation; it does not require the meandering process of random alteration and selection implied by the duplication and neofunctionalization model.

An alteration in the neuregulin - 1 gene — a single change in one letter of the DNA code for the protein — has been found in families with schizophrenia and linked to late - onset Alzheimer's disease with psychosis.

Brandis and Hughes changed many different codons and showed that changing even a single codon in the gene for this protein into any one of the alternative «synonymous» codons reduced the «fitness» of Salmonella.

In a sign of the method's power, Pritchard's team also detected selection in traits controlled not by a single gene, but by tiny changes in hundreds of genes.

Researchers say that each progeria case arises randomly due to a single letter change in one gene of the child's DNA.

Further analysis revealed that a single - letter change in the gene accounted for 46 per cent of the population's hair colour variation, with the blonde allele being recessive to the dark hair allele.

Typically, genome analysis studies primarily look for single changes — one altered unit of DNA — not wholesale copying or halving of genes.

PENCIL IT IN Scientists have used two new versions of CRISPR gene editors, which rewrite DNA like pencils instead of cutting like scissors, to change single - letter typos that cause some blood disorders.

This single cell transcriptome analysis followed by computational analyses enabled the team to identify the gene expression profiles of cells in the process of changing from ES cells to 2CLCs.

Changing the epigenetic code of a single gene is enough to cause a healthy breast cell to begin a chain reaction and become abnormal, according to research by Queen Mary University of London (QMUL).

Changes in the regulatory region of a single gene may have had a profound affect on human evolution.

Silent mutations occur when the change of a single DNA nucleotide within a protein - coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein.

Technological advances in genetic analysis have uncovered changes in single genes that account for a surprising number of infantile and early - childhood epilepsies.

Although mutations come in many varieties, one type, called nonsense mutations, involve the seemingly innocuous change of a single letter in the coded message — a change that causes the gene's message to prematurely read «stop.»

Carrying two copies of a single - letter change in the DNA of chromosome 16 led to a 35 per cent increase in activity of the gene GSPT1 ¬ in men with testicular cancer, compared with those without.

The results also showed that polymorphism, a genetic variant that can change the way a particular gene functions, is possible under a wide range of conditions, which results in a single population playing a variety of different behavioral games.

This, in my opinion, is one of the most compelling parts of this study: in vivo functional validation of a single base change in a noncoding enhancer that's hundreds of thousands of bases away from the gene it regulates.

The most radical news at the conference was the first reported use of CRISPR / Cas9 to generate precise genome edits (changing only a single base pair) in two genes, not only in cell lines in vitro, but also in specific tissues of embryos in ovo.

Many individual ASD patients had deletions or duplications of multiple genes within this network, but for those patients with just a single gene from the network changed, that single gene appeared to play an important role.

Using gene sequencing, the researchers learned that every member of the family with congenital heart disease had the same mutation in GATA4 — a change in a single letter in the gene.

Howard Hughes Medical Institute researchers have discovered that a gene commonly mutated in a wide range of cancers can single - handedly trigger pre-cancerous changes in cells.

July 3, 2013 New mechanism for human gene expression discovered In a study that could change the way scientists view the process of protein production in humans, University of Chicago researchers have found a single gene that encodes two separate proteins from the same sequence of messenger RNA.

To avoid these problems, the team used sequence data to create a list of single DNA letter changes, known as SNPs, which can be reliably identified in the gene - rich areas of the genome.

Using this technology, we screened 31 patient samples across an array containing a total of 162 exons for five disease genes and detected copy - number changes, ranging from whole - gene deletions and duplications to single - exon deletions and duplications, in 100 % of the cases.

However, although CRISPR / Cas is currently good at changing single letters in DNA, it can not yet specifically target the expanded gene and reduce the number of CAG repeats.

A single disabling change — an alteration of one nucleotide — was found in the TRAPPC9 gene in all three girls.

First, Dr. Shendure described some interesting experiments under way in his lab to elucidate the function of non-coding regulatory variants — specifically, single nucleotide changes in the core promoter that alter gene transcription.

No significant differences were seen between the normoxic and hypoxic anoikis - resistant populations collected from MCF7 cells and a single significant gene change (PIP) was seen in T47D (Table 1) suggesting that the CSC - enriched population remains virtually unchanged following hypoxic culture and the increase in MFC, HFC, and tumor initiating cells is, therefore, due to expansion of the population, perhaps by increased symmetric self - renewal of the CSC or de-differentiation of early progenitor cells, rather than simply the acquisition of anoikis resistance in non-CSC.

For example, studies have shown that when a single bacterium becomes part of a biofilm the expression of over 800 genes can change.

Of course, said David Gunn, one of the researchers on the study, there is no single youthfulness gene, and many factors affect how your looks change with age — including genes and lifestylOf course, said David Gunn, one of the researchers on the study, there is no single youthfulness gene, and many factors affect how your looks change with age — including genes and lifestylof the researchers on the study, there is no single youthfulness gene, and many factors affect how your looks change with age — including genes and lifestyle.