I didn't see this one listed in the antibodybeyond review.
Lots of people study T-helper 2 cells. ST2 is associated with diseases such as asthma, pulmonary fibrosis, rheumatoid arthritis, collagen vascular disease and septic shock. It acts as a receptor for the cytokine IL-33. It is present as four isoforms: ST2L, sST2, ST2V, ST2LV. As a receptor it is thought to boost the inflammatory response creating the production of cytokines.