Some butterflies travel farther, reproduce faster
...s. They found that individuals that established new populations mate sooner, lay more eggs and have a different form of an enzyme important to flying, phosphoglucose
isomerase. They also found they have a higher metabolic rate.
Future research will try to further uncover more physiological and molecular differe...
New discovery: Molecular variation in one gene affects the growth of natural populations
...rpool, UK, discovered that the population growth of the Glanville fritillary butterfly (Melitaea cinxia) is affected by the allelic composition of the phosphoglucose
isomerase (Pgi) enzyme. The result challenges previous views according to which allelic variation in populations, and possible consequent differences...
Research Reveals Functions Of Harmful Shellfish Pathogens
...eads a group of scientists from Delaware State University and the National Institutes of Health, recently discovered in V. vulnificus an enzyme called phosphoglucose
isomerase. This enzyme could provide a way for Vibrio to spread more easily.
He also detected the enzyme in virtually all species of Vibrio tested,...
Baker's yeast (S. cerevisiae) Phosphoglucose isomerase from Sigma-Aldrich
Description: Physical form: Essentially sulfate-free, powder containing carbohydrate and citrate buffer salts Preparation Unit Definition: One unit will convert 1.0 mole of D -fructose 6-phosphate to D -glucose 6-phosphate per min at pH 7.4 at 25 C. Chem comp: Protein ~ 50% (modified Warburg-Christian)...
...resence of glucose transport proteins, it is impermeable to glucose 6-phosphate. Glucose 6-phosphate is then rearranged into fructose 6-phosphate by phosphoglucose
isomerase . (Fructose can also enter the glycolytic pathway at this point.)
Phosphofructokinase -1 then consumes 1 ATP to form fructose 1,6-bisph...