PRSS22

Brain-specific serine protease 4 (BSSP-4), also known as serine protease 22 or tryptase epsilon, is an is_associated_with::enzyme that in humans is encoded by the PRSS22 is_associated_with::gene.

This gene encodes a member of the trypsin family of serine proteases. The enzyme is expressed in the airways in a developmentally regulated manner. The gene is part of a cluster of serine protease genes on chromosome 16.