Title
Free Energy Calculations on the Binding of Colchicine and Its Derivatives with the α/β-Tubulin Isoforms
Abstract
Tubulin is the target for numerous small molecule ligands which alter microtubule dynamics leading to cell cycle arrest and apoptosis. Many of these ligands are currently used clinically for the treatment of several types of cancer, and they bind to one of three distinct binding sites within beta-tubulin (paclitaxel, vinca, and colchicine), all of which have been identified crystallographically. Unfortunately, serious side effects always accompany chemotherapy since these drugs bind to tubulin indiscriminately, leading to the death of both cancerous and healthy cells. However, the existence and distribution of divergent tubulin isoforms provide a platform upon which we may build novel chemotherapeutic drugs that can differentiate between different cell types and therefore reduce undesirable side effects. We report results of computational analysis that aims at predicting differences between the binding energies of a family of colchicine derivatives against 10 human (alpha/beta-tubulin isoforms. Free energy perturbation method has been used in our calculations and the results provide a proof of principle by indicating significant differences both among the derivatives and between tubulin isoforms.
Year
DOI
Venue
2008
10.1021/ci800054n
JOURNAL OF CHEMICAL INFORMATION AND MODELING
Field
DocType
Volume
Tubulin,Gene isoform,Binding site,Biochemistry,Paclitaxel,Chemistry,Small molecule,Cell type,Colchicine,Cell cycle checkpoint
Journal
48
Issue
ISSN
Citations 
9
1549-9596
1
PageRank 
References 
Authors
0.40
0
4
Name
Order
Citations
PageRank
Jonathan Y. Mane110.40
Mariusz Klobukowski223.72
J Torin Huzil310.73
Jack Tuszynski410.40