Recombinant Human Elastase-1 protein

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Elastase-1 also known as ELA1 or pancreatic elastase functions as a serine protease. This enzyme with a molecular mass of approximately 29 kDa assists in breaking down elastin an important protein in the connective tissue. Elastase-1 primarily expresses in the pancreas and gets secreted into the duodenum where it plays an important role in digestion. Its specificity for insoluble elastin makes it distinct among proteolytic enzymes.

Biological function summary

Elastase-1 contributes significantly to digestive processes by degrading elastin and other proteins in the small intestine. This action prepares proteins for absorption into the body. Elastase-1 does not work alone; it acts as part of a complex group of pancreatic enzymes including trypsin and chymotrypsin which together facilitate complete protein digestion. These associated enzymes jointly ensure efficient breakdown of dietary components optimizing nutrient uptake.

Pathways

Elastase-1 participates in the digestion and absorption pathways of proteins. It functions alongside other digestive enzymes such as amylase and lipase which are essential in the breakdown of carbohydrates and fats. Elastase-1 has connections to pathways involved in proteolysis acting synergistically with enzymes like trypsin for effective protein digestion. These pathways highlight the cooperative nature of enzyme systems in the digestive tract.

Elastase-1 often becomes a focus in conditions such as chronic pancreatitis and cystic fibrosis. Reduced levels of elastase-1 in the stool serve as a marker for pancreatic insufficiency a condition where the pancreas fails to secrete adequate digestive enzymes. In cystic fibrosis thick mucus secretions can impede elastase-1 from reaching the duodenum exacerbating malabsorption issues. Proteins like trypsin and chymotrypsin can also be involved as impaired pancreatic enzyme excretion affects multiple enzyme systems complicating nutrient absorption and digestion.