Jim Marsters

Title: Jim Marsters: Innovator in Protein Farnesyltransferase Research

Introduction

Jim Marsters is a notable inventor based in Oakland, CA. He has made significant contributions to the field of biochemistry, particularly in the study of mammalian protein farnesyltransferases. His work focuses on the identification and inhibition of enzymes that play a crucial role in cancer-related processes.

Latest Patents

Jim Marsters holds a patent for "Methods and compositions for the identification, characterization and inhibition of mammalian protein farnesyltransferases." This patent discloses methods and compositions aimed at identifying and characterizing farnesyltransferases, which are enzymes involved in the farnesylation of various cellular proteins, including cancer-related ras proteins such as p21.sup.ras. The patent details a specific protein farnesyltransferase with a molecular weight between about 70,000 and about 100,000, as determined by gel exclusion chromatography. Additionally, it outlines methods for preparing farnesyltransferase through recombinant means, including molecular cloning and co-expression of its two subunits. The patent also describes procedures for using the purified enzyme in screening protocols to identify potential anticancer agents that inhibit the enzyme, thereby preventing the expression of proteins like p21.sup.ras. Furthermore, it introduces a family of compounds that act as either false substrates or pure inhibitors of the enzyme, with the most potent inhibitors featuring phenylalanine at the third position of a tetrapeptide whose amino terminus is cysteine.

Career Highlights

Jim Marsters has had a distinguished career, contributing to significant advancements in cancer research. His work has implications for developing new therapeutic strategies aimed at inhibiting cancer progression through the modulation of farnesyltransferase activity.

Collaborations

Throughout his career, Jim has collaborated with esteemed colleagues, including Michael S. Brown and Joseph L. Goldstein. These collaborations have further enriched his research and contributed to the advancement of knowledge in the field.

Conclusion

Jim Marsters is a prominent figure in the realm of biochemistry, particularly known for his innovative work on protein farnesyltransferases. His patent and research efforts hold promise for future cancer therapies, showcasing the importance of innovation in scientific research.