Andrastin A is a fungal meroterpenoid that inhibits protein farnesyltransferase and is used in Ras prenylation research.
Details
Andrastin A is a meroterpenoid secondary metabolite isolated from the cultured broth of Penicillium sp. FO-3929. It was identified as a protein farnesyltransferase (FTase) inhibitor with an IC50 value of 24.9 µM. FTase catalyzes the prenylation of Ras and other CAAX motif-containing proteins, a post-translational modification required for membrane localization and oncogenic signaling. By inhibiting FTase, andrastin A interferes with Ras-dependent signaling pathways implicated in tumor development, positioning it as a natural product lead compound for anticancer research.