amylase is secreted to pancreas in the human body.
amylase is secreted to pancreas in the human body.
where is amylase secreted in the human body?
pancreas
structural variation can be seen as an avenue of genome modification for adaptation by evolution. a study was conducted on ancestral diet and the evolution of the human amylase gene copy number. the consumption of starch became a huge component of the human diet with the development of agricultural societies. amylase is the enzyme that breaks down starch and its copy number varies. these observations led to the question of whether or not the differences in starch consumption between different populations created natural selection pressures on the enzyme amylase. they tested for the differences in the amylase protein expression in saliva from different populations and compared their expression to their copy number in their respective genomes. then they compared the starch consumption of different populations to their copy number of the amylase gene. they found that there was more amylase protein expression in saliva from people that had higher amylase copy number in their genome and there was also an association between groups of people with high starch diets and a larger amylase gene copy number. this study brought exciting results as structural variation proved an involvement in the evolution of the human population by increasing its amylase copy number over time.
structural variation in the human genome
alpha-amylase









































alpha-amylase, (α-amylase) is an enzyme that hydrolyses alpha bonds of large, alpha-linked polysaccharides, such as starch and glycogen, yielding glucose and maltose. it is the major form of amylase found in humans and other mammals. it is also present in seeds containing starch as a food reserve, and is secreted by many fungi.









































section::::in human physiology.
alpha-amylase