Kinesin motor protein dimer, illustration

Kinesin motor protein dimer, illustration


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Kinesin motor protein dimer, molecular model. Kinesin is a motor protein that moves along microtubule filaments in cells. It does so by forming a dimer, the heads of which 'walk' along the microtubule. Here, the heads of the dimer are formed by two protein chains (green and pink, left; and yellow and blue, right) that are attached by a 'neck' region (upper centre) where they coil together. This is not the alignment adopted when moving along a microtubule. The structure modelled here is based on studies of this kinesin in the brown rat (Rattus norvegicus).

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