Sentences with phrase «single oxygen molecule»
Also surprisingly, this functional switch is mediated by a single oxygen molecule, which attaches to a single amino acid at a very critical place in IRE - 1 — and this relatively subtle alteration has a dramatic effect.»
http://www.joslin.org/ Not exact matches
Sickle cell disease is a recessive genetic disorder caused by a single mutation in both copies of a gene coding for beta - globin, a protein that forms part of the oxygen - carrying molecule hemoglobin.
Water is a simple molecule resembling a pair of Mickey Mouse ears: two hydrogen atoms grab a single oxygen atom.
Oxygen radicals normally react haphazardly with other molecules and quickly fall apart, so scientists would have expected only a single oxygen atom to rOxygen radicals normally react haphazardly with other molecules and quickly fall apart, so scientists would have expected only a single oxygen atom to roxygen atom to result.
«A carbon monoxide molecule adsorbed onto the tip of the AFM «needle» leaves a single oxygen atom as the probe,» Fischer explains.
Although the blood disorder sickle - cell anemia was first described for medical science early in the 20th century, it was not until 1956 that researchers pinpointed its cause: a single change in a nucleotide in the gene that codes for the oxygen - carrying molecule hemoglobin.
Many members of the team had previously reported uranium nitride and oxo complexes where the molecules are essentially the same except for swapping a single nitrogen atom for an oxygen.
Currently, the fluorescent molecules last about 45 seconds before reacting with oxygen and «burning out,» and they emit a few shades of red rather than a single pure color.
The presence of ozone helps to explain the detection of hydroxyl (an unstable molecule of oxygen with a single atom of hydrogen) high in planet's atmosphere in 2008 (ESA news releases on ozone, sulfur dioxide, and hydroxyl; Lisa Grossman, New Scientist, October 6, 2011; and Montmessin et al, 2011).
In the process of energy production, single electrons escape from the «factory line» and react with oxygen molecules to form free radicals such as peroxide and superoxide.
When portions of ultraviolet light (UV) strike free atmospheric oxygen it splits the oxygen (O2) into single oxygen (O) molecules.
Ozone production requires something that is not oxygen, to hold onto a single oxygen atom for some period of time, until an oxygen molecule can come along and become ozone.
So, Chapman proposed that as soon as one of these oxygen atoms («free radicals») collided with an ordinary diatomic oxygen molecule, they would react together to form a single triatomic ozone molecule (Figure 18).