U. Iowa researchers improve Huntington's disease symptoms in mice
...ctors (stripped-down viruses) carrying the genetic instructions to make a RNA interference molecule were injected into the brains of genetically engineered mice before the disease symptoms appeared. The treated mice showed nearly normal movement, and the characteristic neurological damage also was significantly i...US-India research team completes analysis of X chromosome
... between the human X chromosome's protein-encoding instructions and corresponding regions in the mouse. Regions th...'s four building blocks -- A, T, C and G -- act as instructions for proteins in select three-block sets. These three-block sets each "code" for just one of the 20 p...Scientists identify genetic pathways essential to RNA interference
...rch. The process interrupts the usual transfer of instructions from double-stranded DNA, through single-stranded messenger RNA and finally into proteins. Short, double-stranded pieces of RNA bind to the complementary messenger RNA segments, shutting down gene expression. RNAi occurs naturally in plants and ani...Men and women: The differences are in the genes
...mes to their genes. Chromosomes contain the set of instructions to create an organism. Men have one X chromosome and one Y chromosome, the latter being responsible for the characteristics that make men male, including the male sexual organs and the ability to produce sperm. In contrast, women have two copies of t...Surprisingly complex behaviors appear to be 'hard-wired' in the primate brain
...are so similar around the world. It is because the instructions for these movements are built-in and not learned," he adds. Over the last 20 years, neuroscientists have identified an area called the primary motor cortex, which, when stimulated, triggers simple muscle movements. The fact that they were able to pro......o the computer code, but emerges as aresult of the instructions the robot follows as it interacts with theenvironment at each instant. The team is also looking at the behavior that emerges when groups ofrobotic rats interact using different kinds of rules. This shouldshow biologists what the rats may be doing. Un...Multi-purpose protein regulates new protein synthesis and immune cell development
... deposited in the ER membrane in response to coded instructions from genes. Chaperone proteins fold these amino acid chains into specific shapes and direct them to different areas of the ER for processing. When too many amino acids pile up in the ER membrane, or when something goes wrong with the folding proces...UCI researchers create new technique for speeding development of vaccines
...f 384 individual genes pieces of DNA that contain instructions for making proteins from a microorganism in just one week. Traditional methods take weeks to produce one protein at a time. The UCI technique involves loading a microchip with every protein from an infectious microorganism such as smallpox, tubercu...Timing is everything: First step in protein building revealed
...IF1, the ribosome can start reading the gene's RNA instructions at places other than a particular three-block piece of RNA known as the "start codon." And excessive amounts of eIF1 are associated with cardiac hypertrophy, or an enlarged heart. While eIF1's role in cardiac hypertrophy remains a mystery, the new di...Vollum Institute discovery may unlock human genome
... the set of genes that are turned on or off. These instructions or regulatory regions are believed to be far more numerous than genes, but it was not clear how to identify them." "We developed a novel technique that is able to isolate a comprehensive set of regulatory regions and map them to the entire genome. Ou...'Jumping gene' helps explain immune system's abilities
... different proteins from a specific, single set of instructions -- the key to recognizing a million immune-stimula...y, immune cells select sections of certain genetic instructions in order to make instructions for a protein that will recognize a particular antigen. Machinery snip......e actions, as if it were sending the same movement instructions to our own body. But for those sports commentators who are ex-athletes, the mirror system is likely to be even more active because their brains may re-enact the moves they once made. This might explain why they get so excited while watching the game!...Research points to new theory driving evolutionary changes
... G. Strings of these letters spell out the genetic instructions needed to carry out all of life's functions. Most scientists agree that over very long periods of time, mutations in the genetic code are responsible for driving evolutionary changes in species. One widely accepted hypothesis is that random, so-calle...Purdue scientists hunt for 'secret X' to treat liver cancer
...with healthy liver tissue. "To find out what instructions the X protein was feeding the cells, we worked with samples of mouse liver tissue in the lab," she said. "We first took the X gene from hepatitis B and inserted it into liver cell nuclei. Then, after the gene started producing the X protein in the ce...... unlikely the sparrows carry some sort of internal instructions on how to assemble song segments into a complete song. Instead, the new study indicates the sparrows' characteristic song is imprinted on their brain like a long-term memory, and not as a complete song, but in pieces. Rose and colleagues propose th...Improved molecular switch could serve as sensor, medical tool
...reate a fused protein in which one component sends instructions to the other. The second then carries out the task. "Last year, we reported that we'd used protein engineering techniques to make a molecular switch, putting together two proteins that normally had nothing to do with one another, but the switching...Differences in gene usage dramatically change bacteria's 'lifestyles'
...an anticipated," Groisman explains. In addition to instructions for building proteins, DNA contains stretches of code that affect when genes are turned on and off. As life becomes more complex over the course of evolution, Groisman explains, these regulatory sections appear to take up larger portions of the DNA, ...Wistar study demonstrates heritability of non-genomic information
...tes transcription of the gene, enhancers that send instructions to the promoter, and specialized regulatory DNA elements such as insulators that can block or augment communication between enhancers and the promoter. Zhou's team studied a regulatory element called the Promoter Targeting Sequence, or PTS. They show...Genetically endowed worm may substitute for rodents in some toxicology testing
...ount of each messenger RNA molecule, which carries instructions from genes on how to build proteins, can then be measured on custom microarrays and compared with the genomes of nematodes that have not been exposed to chemicals. "We will look for changes in the expression of every gene in the an......he puzzle of how one root cell sends its molecular instructions to another in the development process. Researchers have found hints that the channels by which such molecules move between plant cells may also be mirrored in animal cells. Thus, discoveries about plant development may be more broadly applicable to u...