Newly discovered genetic disease sheds light on body's water balance
...her. The other child had a change from arginine to leucine (R137L) but the mother is normal, suggesting that the baby's mutation occurred spontaneously. The fact that the two affected patients are boys is not a coincidence, as the AVPR2 gene is X-linked and only inherited from the mother's side, but not the ...Scientists crack 40-year-old DNA puzzle and point to 'hot soup' at the origin of life
...o the same amino acid. For example, the amino acid leucine can be translated from six different codons whilst some amino acids, which have equally important functions and are translated in the same amount, have just one. The new theory builds on an original idea suggested by Francis Crick - one of the disco......down starts to win. However, adding the amino acid leucine to the diet of old individuals can set things stra...gests that breakdown may be affected. While adding leucine to the diet restores protein building there was no knowledge about this supplement's effect on break...Production of key Alzheimer's protein monitored for first time in humans
...ntists give test subjects a form of the amino acid leucine that has been very slightly altered to label it. Inside the leucine are carbon atoms with 13 neutrons and protons in their nucleus instead of the more common 12 neutron...Scientists solve 30-year-old mystery of mutant mouse's kidney woes
...nge swaps the amino acid serine for the amino acid leucine at a key position in the protein. Serine can under...ification frequently used in biological processes; leucine cannot. This change apparently disrupts the processes that otherwise produce a normal distribution p...