LOC14 is a potent Protein disulfide isomerase (PDI) inhibitor with EC50 and Kd values of 500 nM and 62 nM, respectively. LOC14 exhibits high stability in mouse liver microsomes and blood plasma, low intrinsic microsome clearance, and low plasma-protein binding.
LOC14 inhibits PDIA3 activity, decreases intramolecular disulfide bonds and subsequent oligomerization (maturation) of HA in lung epithelial cells.