Tropomyosin: Difference between revisions

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-[[Image:1c1g.png|left|100px]]
+[[Image:1c1g.png|left|100px|thumb|Crystal Structure of Pig Tropomyosin, [[1c1g]]]]
-{{STRUCTURE_1c1g|  PDB=1c1g  | SIZE=400| SCENE=Tropomyosin/Cv/1 |CAPTION=Tropomyosin from pig, [[1c1g]] }}
+{{STRUCTURE_1c1g|  PDB=1c1g  | SIZE=300| SCENE=Tropomyosin/Cv/1 |CAPTION=Tropomyosin from pig, [[1c1g]] }}
 '''3D Structure of Tropomyosin''' <br />
-The image at the left is a Tropomyosin from pig ([[1c1g]]).
+Tropomyosin (TPM) has a 4-helix coiled dimer structure.  It regulates the binding of myosin thus regulating muscle contraction.  In its locked conformation it binds troponin T (TnnT) and prevents the binding of myosin to actin. When Ca++ ions bind to TnnT, the TPM assumes an open conformation and myosin can bind to actin. You can  <scene name='Tropomyosin/Cv/2'>enlarge the image</scene> at the right for clarity.
-{{Clear}}
 == Tropomyosin ==
-Tropomyosin (TPM) has a 4-helix coiled dimer structure.  It regulates the binding of myosin thus regulating muscle contraction.  In its locked conformation it binds troponin T (TnnT) and prevents the binding of myosin to actin. When Ca++ ions bind to TnnT, the TPM assumes an open conformation and myosin can bind to actin. You can  <scene name='Tropomyosin/Cv/2'>enlarge the image</scene> at the right for clarity.

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