Michael Pikaart/Biochem StructureIntro: Difference between revisions

Revision as of 16:34, 23 August 2010 view source Michael Pikaart (talk \| contribs) 52 edits No edit summary ← Older edit		Revision as of 16:39, 23 August 2010 view source Michael Pikaart (talk \| contribs) 52 edits No edit summary Newer edit →
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	Let's take a closer look at a bit of the alpha helix.<applet load='1ysa' size='400' frame='true' align='right' caption='GCN4 homodimer bound to DNA' />		Let's take a closer look at a bit of the alpha helix.<applet load='1ysa' size='400' frame='true' align='right' caption='GCN4 homodimer bound to DNA' />

	<scene name='Pikaart_Sandbox_1/Helix_closeup/3'>Two helical turns</scene>		<scene name='Pikaart_Sandbox_1/Helix_closeup/3'>Two helical turns</scene> Zoom in and out a bit and make sure you can distinguish the backbone atoms from the side chains. See if you can tell by inspection what amino acids are present in this bit of helix. The green dashed lines show the i to i+4th residue hydrogen bonds. If you rotate the helix so you can see right down the helical axis, you would be lead to believe that there is quite a bit of space down the middle. To convince yourself that the helix is actually very tightly packed, left-click on the structure, chose "Style,"

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