Sandbox 171
Please do NOT make changes to this Sandbox until after April 23, 2010. Sandboxes 151-200 are reserved until then for use by the Chemistry 307 class at UNBC taught by Prof. Andrea Gorrell. |
| |||||||||
2mys, resolution 2.80Å () | |||||||||
---|---|---|---|---|---|---|---|---|---|
Ligands: | , | ||||||||
Non-Standard Residues: | |||||||||
| |||||||||
| |||||||||
Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||||
Coordinates: | save as pdb, mmCIF, xml |
Myosin is one of three major classes of molecular motors: myosin, dynein, and kinesin. As the most abundant of these proteins myosin plays a structural and enzymatic role in muscle contraction and intracellular motility.
StructureStructure
Myosin has a molecular size of approximately 520 kilodaltons, with two 220 kD heavy chains and two pairs of light chains which vary in size. [1] The molecule is asymmetric, having a long tail and two globular heads. [1] The heavy chains each constitute a globular head. [1]