BIO 102 Unit 4 Part 2_ Cytoskeleton Notes

Proteins that regulate the inter actions of myosins w

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Unformatted text preview: hat directly or indirectly link actin filaments to membranes D. Proteins that regulate the inter actions of myosin's w ith actin (like tropomyosin) E. Myosin family of molecular motors Big myosin family. My osin domain st ruct ure: Head/motor Neck: LC binding; neck domain: binding site for light chain T ail domain: highly diverse in function * dimerization, cargo binding, enzyme activity, localization (tells motor w her e to go) Rotary shadow ed replica of single myosin-II molecules Domain str ucture of muscle and non muscle myosin II Head motor has ATPase and actin binding sites T he smallest non muscle my son II bipolar filament is a dimer...
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