Interaction of dolastatin 10 with bovine brain tubulin

Richard F. Luduena, Mary Carmen Roach, Veena Prasad, George R. Pettit

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Dolastatin 10 is an unusual peptide of marine origin which binds to tubulin in the vinblastine/ maytansine/phomopsin-binding region and potently inhibits mitosis. Using N, N′-ethylenebis(iodoacetamide) (EBI) and iodo[14C]acetamide as probes for the effects of ligands on the thiol groups of tubulin, we found that dolastatin 10 has effects on the sulfhydryls indistinguishable from those of phomopsin A but quite different from those of vinblastine and maytansine. Using the binding of bis-5,5'-[8-(N-phenyl) aminonaphthalene-1-sulfonic acid](BisANS) as a measure of tubulin decay, we found that dolastatin 10 resembled phomopsin A in that decay was not detectable by this assay in its presence. Interestingly, both otherwise very different peptides are among the most effective inhibitors of tubulin decay yet discovered.

Original languageEnglish (US)
Pages (from-to)539-543
Number of pages5
JournalBiochemical Pharmacology
Volume43
Issue number3
DOIs
StatePublished - Feb 4 1992

Fingerprint

dolastatin 10
Maytansine
Tubulin
Brain
Vinblastine
Tubulin Modulators
1-Naphthylamine
Iodoacetamide
Peptides
Sulfonic Acids
Mitosis
Sulfhydryl Compounds
Assays
Ligands
phomopsin

ASJC Scopus subject areas

  • Pharmacology

Cite this

Luduena, R. F., Roach, M. C., Prasad, V., & Pettit, G. R. (1992). Interaction of dolastatin 10 with bovine brain tubulin. Biochemical Pharmacology, 43(3), 539-543. https://doi.org/10.1016/0006-2952(92)90576-5

Interaction of dolastatin 10 with bovine brain tubulin. / Luduena, Richard F.; Roach, Mary Carmen; Prasad, Veena; Pettit, George R.

In: Biochemical Pharmacology, Vol. 43, No. 3, 04.02.1992, p. 539-543.

Research output: Contribution to journalArticle

Luduena, RF, Roach, MC, Prasad, V & Pettit, GR 1992, 'Interaction of dolastatin 10 with bovine brain tubulin', Biochemical Pharmacology, vol. 43, no. 3, pp. 539-543. https://doi.org/10.1016/0006-2952(92)90576-5
Luduena, Richard F. ; Roach, Mary Carmen ; Prasad, Veena ; Pettit, George R. / Interaction of dolastatin 10 with bovine brain tubulin. In: Biochemical Pharmacology. 1992 ; Vol. 43, No. 3. pp. 539-543.
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