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Posted by on Sunday, January 27, 2013 at 8:58pm.

I'm asked to tell which of the following peptide segments is most likely to be part of a stable Alpha Helix at physiological pH? Only 1 can be chosen

1. gly-gly-gly-ala-gly
2. gly-arg-lys-his-gly
3. pro-leu-thr-pro-trp
4. lys-lys-ala-arg-ser
5. glu-leu-ala-lys-phe
6. glu-glu-glu-glu-glu
7. tyr-trp-phe-val-lie

  • Chemistry - , Tuesday, February 11, 2014 at 7:34am


  • Chemistry - , Sunday, October 2, 2016 at 9:59pm

    Tyr-Trp-Phe-Val-iLe is wrong because of the big bulky tyr,trp, and phe.

    Anything with Gly is wrong because gly is too flexible which causes it to form other helicies.

    (This is the feedback given from Sapling)

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