Cited by 257Microbial Natural Products and BiosynthesisProtein Kinase Regulation and GTPase SignalingPlant biochemistry and biosynthesis

Identification of Ras farnesyltransferase inhibitors by microbial screening.

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Hara, M, Akasaka, K, Akinaga, S, Okabe, M, Nakano, H, Gomez, R, Wood, D, Uh, M +1 more·1993·Proceedings of the National Academy of Sciences

Abstract

A microbial screen using a yeast strain with conditional deficiency in the GPA1 gene was carried out to search for inhibitors of protein farnesyltransferase (PFT). A strain of Streptomyces was found to produce active compounds named UCF1-A, UCF1-B, and UCF1-C. Structural determination of these compounds revealed that UCF1-C is identical to the known antibiotic, manumycin, whereas UCF1-A and UCF1-B are structurally related to manumycin. All three UCF1 compounds suppress the lethality of gpa1 disruption, with UCF1-C exhibiting the strongest activity. UCF1 inhibits yeast as well as rat brain PFT. Fifty percent inhibition of yeast PFT activity is observed with 5 microM UCF1-C. Kinetic analyses of the inhibition suggest that UCF1-C acts as a competitive inhibitor of PFT with respect to farnesyl pyrophosphate, exhibiting a Ki of 1.2 microM, whereas the same compound appears to act as a noncompetitive inhibitor of PFT with respect to the farnesyl acceptor, the Ras protein. UCF1-C shows significant activity to inhibit the growth of Ki-ras-transformed fibrosarcoma, raising the possibility of its use as an antitumor drug.

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Crossref · 10.1073/pnas.90.6.2281

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  • Previously reported targets including farnesyltransferase and sphingomyelinase may also play a role in mediating anti-cancer effects or other biological activities.

    “Previously reported targets including farnesyltransferase and sphingomyelinase may also play a role in mediating anti-cancer effects or other biological activities 22,23.”
  • Manumycin A has been shown to inhibit farnesyl transferase activity and sphingomyelinase activity.

    “Manumycin A has also been show to inhibit farnesyl transferase activity and sphingomyelinase activity, but asukamycin is not known to inhibit these targets and its anti-cancer mechanism of action is unclear 19–23.”
  • Asukamycin is not known to inhibit farnesyl transferase or sphingomyelinase and its anti-cancer mechanism of action is unclear.

    “Manumycin A has also been show to inhibit farnesyl transferase activity and sphingomyelinase activity, but asukamycin is not known to inhibit these targets and its anti-cancer mechanism of action is unclear 19–23.”

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Research works printed but not linked: 5

  1. [7]Goodman, L. E., Judd, S. R., Farnsworth, C. C., Powers, S., Gelb, M. H., Glomset, J. A. & Tamanoi, F. (1990) Proc. Natl. Acad. Sci. USA 87, 9665–9669.
  2. [9]He, B., Chen, P., Chen, S.-Y., Vancura, K. L., Michaelis, S. & Powers, S. (1991) Proc. Natl. Acad. Sci. USA 88, 11373– 11377.
  3. [15]Yokoyama, K., Goodwin, G., Ghomaschchi, F., Glomset, J. A. & Gelb, M. H. (1991) Proc. Natl. Acad. Sci. USA 88, 5302–5306.
  4. [19]Finegold, A. A., Johnson, D. I., Farnsworth, C. C., Gelb, M. H., Judd, S. R., Glomset, J. A. & Tamanoi, F. (1991) Proc. Natl. Acad. Sci. USA 88, 4448–4452.
  5. [28]Gibbs, J. B., Schaber, M. D., Schofield, T. L., Scolnick, E. M. & Sigal, I. S. (1989) Proc. Natl. Acad. Sci. USA 86, 6630-6634.

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Authors
Hara, M., Akasaka, K., Akinaga, S., Okabe, M., Nakano, H., Gomez, R., Wood, D., Uh, M., & Tamanoi, F.
Affiliations
Kyowa Kirin (Japan) (JP)
Venue
Proceedings of the National Academy of Sciences
Published
1993-03-15
Volume
90
Issue
6
Pages
2281-2285
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2055097128
Cited by
257
References
32
Citations by year
2026: 2 · 2025: 3 · 2024: 3 · 2023: 1 · 2022: 5 · 2021: 5 · 2020: 8 · 2019: 2 · 2018: 4 · 2017: 2 · 2016: 4 · 2015: 5 · 2014: 6 · 2013: 6 · 2012: 4
FWCI
14.63
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (CA 41996, R01CA041996)
Topics
  • Health Sciences › Medicine › Pharmacology › Microbial Natural Products and Biosynthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Plant biochemistry and biosynthesis
Keywords
manumycin, Streptomyces, competitive inhibition, non-competitive inhibition, Ras proteins, farnesyl pyrophosphate, anticancer agents, microbial screening
MeSH terms
Amino Acid Sequence, Animals, Anti-Bacterial Agents, Antibiotics, Antineoplastic, Brain, Cattle, Cell Transformation, Neoplastic, Fibrosarcoma, Genes, Fungal, Genes, Lethal, Glutathione Transferase, Humans, Male, Mice, Inbred BALB C, Mice, Nude, Molecular Sequence Data, Neoplasm Transplantation, Polyenes, Genes, ras, Recombinant Fusion Proteins, Saccharomyces cerevisiae, Streptomyces, Structure-Activity Relationship, Transferases, Transplantation, Heterologous, Tumor Cells, Cultured, Molecular Structure, Alkyl and Aryl Transferases, Mice, Rats, Polyunsaturated Alkamides

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