The secondary structure of bacteriorhodopsin determined by Raman and circular dichroism spectroscopy
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For a comparison with the corresponding alpha- and beta-hexapeptides H-(Val-Ala-Leu)2-OH (A) and H-(beta-HVal-beta-HAla-beta-HLeu)2-OH (B), the corresponding gamma-hexapeptide (I), built from the homochirally similar (S)-4-aminobutanoate, (R)-4-amino-5-met ...
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