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SCI-VIS IFC-CNR / SCIENCE PHOTO LIBRARY SCI-VIS IFC-CNR / SCIENCE PHOTO LIBRARY
Bound calmodulin protein, anaglyph 3D animation. Clip 6 of 10. This clip forms part of an animation sequence showing protein interactions within a dividing cell. This clip shows a molecule of the protein calmodulin (CaM, calcium-modulated protein) surrounded by ions and other small, fast-moving molecules. It is transiting from an unbound state (ApoCaM) to the state in which it is bound to four calcium ions (CaCaM). This process changes the shape (conformation) of the protein, and is an important step that enables this protein to bind to other proteins. The full sequence of ten clips shows the interaction between CaM, calcium ions, the MLCK (myosin light-chain kinase) protein, and the actin-myosin bundles of the cell's cytoskeleton, resulting in contraction of the membrane and cell division. To see this clip in 3D, please view using red-blue glasses, with red on the left. For the entire sequence, see clips K003/4492 to K003/4483. For the same sequence as an ordinary animation with labels, see clips K003/3847 to K003/3838.
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