Results 11 to 20 of about 204,218 (228)

Microtubules and Microtubule-Associated Proteins [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2018
Microtubules act as "railways" for motor-driven intracellular transport, interact with accessory proteins to assemble into larger structures such as the mitotic spindle, and provide an organizational framework to the rest of the cell. Key to these functions is the fact that microtubules are "dynamic." As with actin, the polymer dynamics are driven by ...
Holly V. Goodson, Erin M. Jonasson
openaire   +2 more sources

Nanomechanics of Microtubules [PDF]

open access: yesPhysical Review Letters, 2002
We have determined the mechanical anisotropy of a single microtubule by simultaneously measuring the Young's and the shear moduli in vitro. This was achieved by elastically deforming the microtubule deposited on a substrate tailored by electron-beam lithography with a tip of an atomic force microscope.
B. Babić   +9 more
openaire   +4 more sources

Isolation of Microtubules and Microtubule Proteins

open access: yesCurrent Protocols in Cell Biology, 2008
AbstractThis unit describes various protocols for the isolation and purification of the main constituents of microtubules, chiefly α‐ and β‐tubulin, and the most significant microtubule associated proteins (MAPs), specifically MAP1A, MAP1B, MAP2, and tau.
Ávila, Jesús   +3 more
openaire   +3 more sources

Ectopic A-lattice seams destabilize microtubules [PDF]

open access: yes, 2014
Natural microtubules typically include one A-lattice seam within an otherwise helically symmetric B-lattice tube. It is currently unclear how A-lattice seams influence microtubule dynamic instability.
A des Georges   +54 more
core   +1 more source

Microtubules in Bacteria: Ancient Tubulins Build a Five-Protofilament Homolog of the Eukaryotic Cytoskeleton [PDF]

open access: yes, 2011
Microtubules play crucial roles in cytokinesis, transport, and motility, and are therefore superb targets for anti-cancer drugs. All tubulins evolved from a common ancestor they share with the distantly related bacterial cell division protein FtsZ, but ...
A Briegel   +66 more
core   +5 more sources

Microtubule severing [PDF]

open access: yesCell Motility and the Cytoskeleton, 1999
The regulation of microtubule stability by severing of the polymer along its length is a newly appreciated and potentially important mechanism for controlling microtubule function. Microtubule severing occurs in living cells, but direct observation of this event is infrequent.
L M, Quarmby, T A, Lohret
openaire   +2 more sources

Segregation of a microsporidian parasite during host cell mitosis [PDF]

open access: yes, 1999
We investigated the segregation of an intracellular microsporidian parasite during host cell division. A time-course experiment was carried out to examine the distribution of parasites relative to host chromosomal DNA via light and electron microscopy.
Dunn, A.M., Smith, J.E., Terry, R.S.
core   +1 more source

Microtubule dynamics depart from wormlike chain model [PDF]

open access: yes, 2007
Thermal shape fluctuations of grafted microtubules were studied using high resolution particle tracking of attached fluorescent beads. First mode relaxation times were extracted from the mean square displacement in the transverse coordinate.
Ernst-Ludwig Florin   +5 more
core   +2 more sources

Actin–microtubule coordination at growing microtubule ends [PDF]

open access: yesNature Communications, 2014
To power dynamic processes in cells, the actin and microtubule cytoskeletons organize into complex structures. Although it is known that cytoskeletal coordination is vital for cell function, the mechanisms by which cross-linking proteins coordinate actin and microtubule activities remain poorly understood.
Preciado López, Magdalena   +6 more
openaire   +6 more sources

Microtubules, microtubule-interfering agents and apoptosis.

open access: yesApoptosis : an international journal on programmed cell death, 2003
Microtubules are dynamic polymers that play crucial roles in a large number of cellular functions. Their pivotal role in mitosis makes them a target for the development of anticancer drugs. Microtubule-damaging agents suppress microtubule dynamics, leading to disruption of the mitotic spindle in dividing cells, cell cycle arrest at M phase, and late ...
Mollinedo, Faustino, Gajate, Consuelo
openaire   +4 more sources

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