Extension step in the second cycle will produce a product that will be much shorter than the 'long product'; this is the 'correct' PCR product and represents the target sequence

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#Unit 4. Cell Communication and Cell Signaling

The first myosin discovered

Myosin II, was isolated from skeletal muscle.

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#Unit 4. Cell Communication and Cell Signaling

Three classes of myosins:

Myosin I

Myosin II

Myosin V

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#Unit 4. Cell Communication and Cell Signaling

Myosin I

single head domain

Function- Membrane association, endocytosis

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#Id: 1402

#Unit 4. Cell Communication and Cell Signaling

Myosin II

Two heads and assembles into bipolar filaments

Small and non-processive

Function- Contraction 

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#Id: 1403

#Unit 4. Cell Communication and Cell Signaling

Myosin V

Two heads but does not assemble into filaments

Large and processive

Function- Organelle transport

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#Id: 1404

#Unit 4. Cell Communication and Cell Signaling

All Myosins move toward the (+) end of an actin filament except myosin VI.