Computational study of binding of epothilone A to β-tubulin.
Summary of "Computational study of binding of epothilone A to β-tubulin."
Understanding the interactions of epothilones with β-tubulin is crucial for computer aided rational design of macrocyclic drugs based on epothilones and epothilone derivatives. Despite numerous structure-activity relationship investigations we still lack substantial knowledge about the binding mode of epothilones and their derivatives to β-tubulin. In this work, we reevaluated the electron crystallography structure of epothilone A/β-tubulin complex (PDB entry 1TVK) and proposed an alternative binding mode of epothilone A to β-tubulin that explains more experimental facts.
Affiliation
Laboratory of Theory of Biopolymers, Faculty of Chemistry, University of Warsaw, Warsaw, Poland.
Journal Details
This article was published in the following journal.
Name: Acta biochimica Polonica
ISSN: 1734-154X
Pages:
Links
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/21633729
- DOI: http://dx.doi.org/
Medical and Biotech [MESH] Definitions
Tubulin Modulators
Agents that interact with TUBULIN to inhibit or promote polymerization of MICROTUBULES.
Microtubules
Slender, cylindrical filaments found in the cytoskeleton of plant and animal cells. They are composed of the protein TUBULIN and are influenced by TUBULIN MODULATORS.
N-methylscopolamine
A muscarinic antagonist used to study binding characteristics of muscarinic cholinergic receptors.
Neurocalcin
A neuronal calcium sensor protein that is expressed as several isoforms and can interact with ACTIN; TUBULIN; and CLATHRIN.
Antimitotic Agents
Agents that arrest cells in MITOSIS, most notably TUBULIN MODULATORS.
PubMed Articles
A series of conformationally restrained epothilone analogues with a short bridge between the methyl groups at C6 and C8 was designed to mimic the binding pose assigned to our recently reported EpoA-mi...
New epothilone congeners from Sorangium cellulosum strain So0157-2.
As a continuous work to find more epothilone congeners produced by the epothilones A and B producing Sorangium cellulosum strain So0157-2 in the large-scale fermentation (5000 L), we reinvestigated...
Radiosensitizing effect of epothilone B on human epithelial cancer cells.
BACKGROUND: A combined modality treatment employing radiation and chemotherapy plays a central role in the management of solid tumors. In our study, we examined the cytotoxic and...
Quantum-Chemical Study on the Bioactive Conformation of Epothilones.
Herein, I report a DFT study on the bioactive conformation of epothilone A based on the analysis of 92 stable conformations of free and bound epothilone to a reduced model of tubulin receptor. The equ...
Competitive mass spectrometry binding assay for characterization of three binding sites of tubulin.
Tubulin is an attractive and established target for anticancer therapy. To date, the only method to determine the binding of inhibitor to tubulin has been competitive radioligand binding assays. We de...
Clinical Trials
Phase I Dose Finding Study of SSR97225 Given in Patients With Refractory Cancer
The purpose of this study is to determine the maximally tolerated dose and the dose limiting toxicity of this antimitotic, tubulin binding investigational drug for those patients who have...
Epothilone B in Treating Patients With CNS Metastases From Breast Cancer
RATIONALE: Drugs used in chemotherapy, such as epothilone B, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. PURPO...
RATIONALE: Drugs used in chemotherapy such as epothilone D work in different ways to stop tumor cells from dividing so they stop growing or die. PURPOSE: This phase II trial is studying h...
Epothilone ZK-219477 in Treating Patients With Recurrent Glioblastoma
RATIONALE: Drugs used in chemotherapy, such as epothilone ZK-219477, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing...
Evaluation of a New Agent for Treatment of Advanced Stage Breast Cancer
The purpose of this study is to evaluate whether treatment with a new drug called ZK-Epothilone (ZK-Epo) in patients with metastatic breast cancer helps to decrease or stop tumor growth.