Actin filaments M 092o95029925P Microtubules Intermediate filaments (b) FIGURE 9.1 The components of the cytoskeleton.(a) This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information
Organization of the cytoskeleton in polarized epithelial cells(极性上皮细胞) APICAL microvillus terminal web of actin adherens junction desmosome nucleus hemidesmosome basal lamina intermediate filaments BASAL microtubules actin microfilaments This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information
Section 1.Microtubule(MT) (微管) Interphase This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information
Microtubules Hollow cylindrical structure composed of microtubule proteins and microtubule associated proteins. Presented in cytosol. a Control of the membranous organelle positioning and intracellular material transport; take part in the assembly of flagella(鞭毛)， cilia(纤毛)，centrosomes(中心体)，spindle(纺锤体)； regulate cell motility,cell division and cell morphology. This document is produced by trial version of Print2Flash.Visit www.printflash.com for more information
1.The structure of MT Protofilament(原纤维)consists of a,阝tubulin heterodimers 13 protofilaments form a cyclic structure Dynamic,polarity Three forms of microtubules:singlet,doublet,triplet B-tubulin g。 tubulin heterodimer (=microtubule subunit) protofilament 10 nm plus end 50nm minus end (A) a-tubulin (B) (C)microtubule 50nm This document is produced by trial version of Print2Flash.Visit www.print2flash.com for more information