Prakash et al. cloned a cDNA corresponding to the 3'UTR of the last exon of the gene (PubMed:9809749). They have shown that a synthetic peptide derived from this sequence could stimulate fibroblasts growth in vitro, and that this protein could be a fibrogenic lymphokine, that could stimulate several biological activities related to scarring. It would be expressed in placenta, skeletal muscle, pancreas, thymus, testis, and leukocytes. However, it was not confirmed by in vivo data. Truncated N-terminus. Truncated N-terminus.