ESM-1 (Endocan) serves a vital role in angiogenesis by promoting new blood vessel sprouting. Its implication in lung endothelial cell-leukocyte interactions suggests potential significance in regulating immune responses within the pulmonary vasculature. ESM-1 Protein, Human (HEK293, His) is the recombinant human-derived ESM-1 protein, expressed by HEK293 , with C-6*His labeled tag.