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. Author manuscript; available in PMC: 2009 Aug 1.
Published in final edited form as: Peptides. 2008 Apr 10;29(8):1413–1423. doi: 10.1016/j.peptides.2008.03.022

Table 9.

Calculated Rotamer Populations for Tyr and Trp of Analogous Peptides in DMSO-d6.

Rotamer Compound 1a DPDPEb DPDPEc CCK-7(ns)d
Gauche (−)e 42 39 27.0(73.0) 25
Tyr Transe 41 60 73.0(27.0) 58
Gauche (+) 17 3 0 17

Gauche (−)e 65 69 73.0(27.0) 20
Trp/Phe Transe 23 17 27.0(73.0) 63
Gauche (+) 11 14 0 17
a

Rotamer populations calculated with Pachler parameters.

b

DPDPE [32], Tyr-c[D-Pen-Gly-Phe-D-Pen]-OH, calculated with Pachler parameters.

c

DPDPE [21], calculated according to DeLeeuw and Altona [13].

d

CCK-7, non-sulfated [25], calculated according to Pachler.

e

Gauche (−) and trans might be arbitrary depending on the assignment of the β protons.

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