background: there are only four drugs for treating african trypanosomiasis, a devastating disease in sub-saharan africa. with slow discovery of better drugs, vaccination is viewed as the best method of control. we previously showed that antibodies to native trypanosoma brucei brucei tubulin inhibit the growth of trypanosomes in culture. here, we aimed to determine the effect of antibodies to ba...

background: tubulin protein being the fundamental unit of microtubules is actively involved in cell division thus making them a potential anti-cancer drug target. in spite of many reported drugs against tubulin, few of them have started developing resistance in human β-tubulin due to amino acid substitutions. methods: in this study we generated three mutants (f270v, a364t and q292e) using model...

Tubulin plays essential roles in vital cellular activities and is the target of a wide range proteins ligands. Here, using combined computational crystallographic fragment screening approach, we addressed question how many binding sites exist tubulin. We identified 27 distinct sites, which 11 have not been described previously, analyzed their relationship to known tubulin–protein tubulin–ligand...

microtubules are unique cytoskeletal structures that have structural subunits of αβ tubulin. taxol is a typical microtubule stabilizing drug. the epothilones are other natural products with similar mechanism of action totaxol. despite the highly conserved nature of β-tubulin, some organism like saccharomyces cerevesia is resistance to taxol, but sensitive to epothilones. in order to find differ...

Background: Microtubules (MT) are important components of cell cytoskeleton and play key roles in cell motility mitosis and meiosis. They are also the targets of several anticancer agents which indicating their importance in maintaining cell viability. Microtubular reorganization contributing to apoptotic morphology occurs in normal and neoplastic cells undergoing apoptosis induced by cytotoxic...

background: microtubules (mt) are important components of cell cytoskeleton and play key roles in cell motility mitosis and meiosis. they are also the targets of several anticancer agents which indicating their importance in maintaining cell viability. microtubular reorganization contributing to apoptotic morphology occurs in normal and neoplastic cells undergoing apoptosis induced by cytotoxic...

Background Asthenozoospermia accounts for almost 50% of the cases of male infertility. Our study investigating phosphoproteins differentially expressed in asthenozoosperm has identified the phosphoproteins relevant to sperm motility and the signature molecules likely to be altered in asthenozoospermia. The 66 phosphoproteins differentially expressed included four alpha tubulin isoforms which we...

Background Asthenozoospermia accounts for almost 50% of the cases of male infertility. Our study investigating phosphoproteins differentially expressed in asthenozoosperm has identified the phosphoproteins relevant to sperm motility and the signature molecules likely to be altered in asthenozoospermia. The 66 phosphoproteins differentially expressed included four alpha tubulin isoforms which we...

objective(s): crocin, as the main carotenoid of saffron, has shown anti-tumor activity both in vitro and in vivo. crocin might interact with cellular proteins and modulate their functions, but the exact target of this carotenoid and the other compounds of the saffron have not been discovered yet. microtubular proteins, as one of the most important proteins inside the cells, have several functio...

Tubulin vinca-domain ligands can inhibit microtubule polymerization, causing cell death in mitosis, and their potential against multiple cancer types has been demonstrated. However, due to drug resistance toxicities, development of novel is still needed. In this study, we determined the high-resolution crystal structures vinorelbine, YXD, Phomopsin A complex with tubulin at 2.5 Å. Additionally,...