NCIt definition : Human PTN wild-type allele is located within 12p12.1-p11.2 and is approximately 14
kb in length. This allele, which encodes pleiotrophin protein, plays a role in mitogenesis
for endothelial, epithelial, and fibroblast cells and neurite outgrowth. Further,
aberrations of the gene result in allelic variants that are implicated in tumor invasion,
angiogenesis, and metastasis.;