User:John S. de Banzie/Sandbox 2

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==Carboxypeptidase A==
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==Zinc Finger==
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<StructureSection load='4cpa' size='400' side='right' caption='Carboxypeptidase A, [[4cpa]]' scene='59/590622/4cpaspacefill/4'>
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<StructureSection load='1mey' size='400' side='right' caption='Leucine Zipper, [[1mey]]' scene='59/590622/1meyspacefill/1'>
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Carboxypeptidase A catalyses the release of the C-terminal amino acid from a polypeptide chain. The initial image shows carboxypeptidase with a tetrapeptide (green) bound in the active site.
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This zinc finger protein has one subunit. <scene name='59/590622/1meyspacefillunits/1'>Three zinc finger motifs</scene> fit into a major groove in the DNA. Each consists of an <scene name='59/590622/1meycartoon/1'>alpha helix, two short segments of beta pleated sheet, and a zinc ion (violet)</scene>.
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The enzyme has <scene name='59/590622/4cpacartoon/2'>mixed secondary structure</scene>. A <scene name='59/590622/4cpacartoonzn/3'>zinc ion</scene> is present. The ion is involved in binding and catalysis.
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Three interactions hold the substrate in the active site.
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1. <scene name='59/590622/4cpabindone/2'>Between the carbonyl group of the penultimate residue in the substrate and the zinc ion and an arginine in the enzyme</scene>.
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2. <scene name='59/590622/4cpabindone/1'>Between the C-terminal carboxyl group and asparagine, arginine, and tyrosine residues in the enzyme</scene>.
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3. <scene name='59/590622/4cpabindone/1'>Between the C-terminal R group and a hydrophobic pocket in the enzyme</scene>.
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== Function ==
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== Disease ==
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== Relevance ==
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== Structural highlights ==
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This is a sample scene created with SAT to <scene name="/12/3456/Sample/1">color</scene> by Group, and another to make <scene name="/12/3456/Sample/2">a transparent representation</scene> of the protein. You can make your own scenes on SAT starting from scratch or loading and editing one of these sample scenes.
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</StructureSection>
</StructureSection>
== References ==
== References ==
<references/>
<references/>

Current revision

Zinc Finger

Leucine Zipper, 1mey

Drag the structure with the mouse to rotate

References

Proteopedia Page Contributors and Editors (what is this?)

John S. de Banzie

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