Neuropilin-1 has been found to be overexpressed in several kinds of malignant tumors, and it is postulated that its interaction with the vascular endothelial growth factor 165 leads to progression of tumor vascularization and growth. Several analogues (KxxR) with various conformational latitudes have been synthesized and found as inhibitors of NRP-1. Detailed insight provided by molecular dynamics simulation allowed forming a clear relationship between flexibility of xx part of the molecule and its inhibitory activity.
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