Membrane Proteins I

<p>Feb 25, 2015 09:02 PM</p>

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exclt teacher! &nbsp;Armando Hasudungan.</p>

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pub Nov 2012... &nbsp;the Sal Khan of bio.</p>

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integral proteins span the membrane &nbsp;and

peripheral proteins stick into inside (into cytosol)</p>

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integral &nbsp;also &nbsp;have hydrophobic in middle and hydrophilic on outside.</p>

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integral proteins...</p>

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alpha helix structure...

nonpolar AAs in middle &nbsp;(phobic section)

and charged on each each that stick out.</p>

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6 difft types of helices

depends on</p>

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type 1 &nbsp;amine on outsie anc COOH on insdie

type 2 opposite.</p>

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type III several &nbsp;loops inside &nbsp;membrane</p>

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etc. &nbsp;bacteriorhodopsin...</p>

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7 hydrophobic &nbsp;alpha helices...</p>

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seq the AA and polarity... free engry change &nbsp;as it moves from hydrophob to water.</p>

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shows &nbsp;&nbsp;the 7 peaks that are in the membrane.... &nbsp;</p>

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also beta sheets that span membrane...</p>

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part 2*</p>

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