کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2050496 1074172 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Differential colchicine-binding across eukaryotic families: The role of highly conserved Pro268β and Ala248β residues in animal tubulin
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش گیاه شناسی
پیش نمایش صفحه اول مقاله
Differential colchicine-binding across eukaryotic families: The role of highly conserved Pro268β and Ala248β residues in animal tubulin
چکیده انگلیسی

Colchicine–tubulin interaction, responsible for the disruption of microtubule formation, has immense pharmacological importance but is poorly understood in terms of its biological significance. The interaction is characterized by a marked higher affinity of colchicine for animal tubulins compared to tubulins from plants, fungi and protists. From an analysis of tubulin sequences and colchicine–tubulin crystal structure, we propose that Pro268β and Ala248β (270β and 250β in the crystal structure 1SA0) in animal tubulin are crucial for the observed differential binding. We also suggest that mediated by the binding of endogenous molecules to the colchicine-binding site, microtubule assembly in eukaryotes may be modulated in a family specific manner.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: FEBS Letters - Volume 581, Issue 26, 30 October 2007, Pages 5019–5023
نویسندگان
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