Trypsin-like enzymes are also found in many other places in the body. In each picture, the key serine is shown at center in red, with a histidine (white and blue) and an aspartate (only one red oxygen can be seen) highlighted below it. Each has a particular taste for protein chains: trypsin (shown at the top from PDB entry 2ptn ) cuts next to lysine and arginine, chymotrypsin (shown in the middle from PDB entry 2cha ) cuts next to phenylalanine and other large amino acids, and elastase likes chains with small amino acids like alanine (shown at the bottom from PDB entry 3est ). In digestion, trypsin, chymotrypsin and elastase work together to chop up proteins. The serine proteases are a diverse family of enzymes, all of which use similar enzymatic machinery. Trypsin uses a special serine amino acid in its protein-cutting reaction, and is consequently known as a serine protease. Diversity, Equity, Inclusion, and Access.
Exploring the Structural Biology of Bioenergy.Exploring the Structural Biology of Cancer.
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