Difference between Myosin and Actin
Difference between Myosin and Actin are in tabular form below –
No. |
Myosin |
Actin |
Definition |
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1. | A super family which include motor proteins and has function in muscle contraction is known as Myosin. | A proteins which is multifunctional protein forms microfilaments and present in the eukaryotic cells, this is known as Actin. |
Proteins |
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2. | In the myosin, myosin and meromysin are the proteins in filaments. | In the Actin, actin, troponin and tropomyosin are the proteins in filaments. |
Filament surface |
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3. | The filaments of myosin contains rough surface. | The filaments of actin contains smooth filaments. |
Molecular weight |
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4. | In the myosin, molecular weight is high. | In the actin, molecular weight is low. |
Shape and number |
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5. | The myosin contains long, thick filaments and contain fewer filaments when compared to actin. | The actin contains short, thin filaments and containnumerous filaments when compared to myosin. |
Cross bridges |
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6. | The myosin contains cross bridges. | The actin do not contain cross bridges. |