Energy Parameters in Polypeptides. VI. Conformational Energy Analysis of the N-Acetyl N′-Methyl Amides of the Twenty Naturally Occurring Amino Acids

1973 ◽  
Vol 11 (2-3) ◽  
pp. 121-152 ◽  
Author(s):  
Peter N. Lewis ◽  
Frank A. Momany ◽  
Harold A. Scheraga
Keyword(s):  
Amino Acids ◽  
Energy Analysis ◽  
Conformational Energy ◽  
Energy Parameters ◽  
Naturally Occurring ◽  
Conformational Energy Analysis

Helical Structures of Poly(D-L-peptides). A Conformational Energy Analysis

1977 ◽  
Vol 10 (6) ◽  
pp. 1284-1288 ◽  
Author(s):  
F. Colonna-Cesari ◽  
S. Premilat ◽  
F. Heitz ◽  
G. Spach ◽  
B. Lotz
Keyword(s):  
Energy Analysis ◽  
Conformational Energy ◽  
Helical Structures ◽  
Conformational Energy Analysis

Conformational energy analysis of retro-all-Dmethionine enkephalin

Biopolymers ◽  
1978 ◽  
Vol 17 (11) ◽  
pp. 2609-2615 ◽  
Author(s):  
F. A. Momany ◽  
J. R. Aubuchon
Keyword(s):  
Energy Analysis ◽  
Conformational Energy ◽  
Conformational Energy Analysis

Conformational energy analysis of substituted diphenylethanes

1983 ◽  
Vol 91 (3-4) ◽  
pp. 283-288 ◽  
Author(s):  
Ivan G. Pojarlieff ◽  
Petko M. Ivanov ◽  
Nikolina D. Berova
Keyword(s):  
Energy Analysis ◽  
Conformational Energy ◽  
Conformational Energy Analysis

scholarly journals Conformational energy analysis of Bence Jones Protein Rhe

1981 ◽  
Vol 37 (a1) ◽  
pp. C333-C333
Author(s):  
A. Chatterjee ◽  
B. C. Wang ◽  
W. Furey Jr ◽  
C. S. Yoo ◽  
M. Sax
Keyword(s):  
Energy Analysis ◽  
Conformational Energy ◽  
Bence Jones Protein ◽  
Conformational Energy Analysis

Conformational effect in the stannous chloride debromination of sym-tetrabromoethane

1967 ◽  
Vol 45 (10) ◽  
pp. 1161-1164 ◽  
Author(s):  
W. K. Kwok ◽  
Sidney I. Miller
Keyword(s):  
Transition State ◽  
Conformational Analysis ◽  
State Energy ◽  
Energy Analysis ◽  
Stannous Chloride ◽  
Conformational Energy ◽  
Present System ◽  
Transition State Energy ◽  
Conformational Effect ◽  
Conformational Energy Analysis

The initial ratios of cis- to trans-dibromoethene product in the stannous chloride reduction of sym-tetrabromoethane in dimethylformamide were 1.51 ± 0.04 at 25°, 1.36 ± 0.03 at 50°, and 1.20 ± 0.03 at 75°. Transition state energy differences in the trans–gauche tetrabromoethane rotamers are estimated as (Ht≠ – Hg≠) = 480 and (Ft≠ – Fg≠) = 244 cal/mole at 25°. A conformational energy analysis was performed. We have shown how a rate-equilibrium parallelism can be adapted to a conformational analysis for systems of this type, and how α, a constant between zero and unity, can be used to characterize the transition state relative to reactants and products (eq. [8]). In the present system, however, there is no rate-equilibrium parallelism and α cannot be defined.

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