Effect of the substitution Ala----Gly at each of five residue positions in the C-peptide helix.
Effect of the substitution Ala----Gly at each of five residue positions in the C-peptide helix.
复制标题
C 肽螺旋中五个残基位置中每个位置的 Ala----Gly 取代的影响。
DOI:
10.1021/bi00431a025
复制
发表时间:
1989
期刊:
影响因子:
2.9
通讯作者:
Baldwin,RL
中科院分区:
文献类型:
--
作者:
Strehlow,KG;Baldwin,RL
Gly at end residue 1 and no decrease at end residue 13. The change for Ala—Gly is similar at position 4, 5, or 6; the change is caused chiefly by the difference in s, the helix growth parameter in the Zimm-Bragg model for a-helix formation, between Ala and Gly. Thus, the helicity of C-peptide depends sensitively on i at interior positions. The small change in helicity found for Ala—*•Gly at either end position suggests that the end residues are largely excluded from the helix, with the result that helicity is relatively unaffected by replacement of an end residue. Another possibility is that some helix-stabilizing effect is exerted by Gly only at an end position. Exclusion of an end residue from the helix might be caused either by fraying of the helix ends or by helix termination at an interior residue, resultingfrom a helix stop signal such as the Glu-2'-Arg-10+ salt bridge or the Phe-8-His-12+ ring interaction.
登录
查看更多内容
DOI:
--
发表时间:
1986
期刊:
Proteins: Structure, Function, and Bioinformatics
影响因子:
--
作者:
C. Mitchinson;R. L. Baldwin
通讯作者:
R. L. Baldwin
影响因子:
2
作者:
CHEN, GC;YANG, JT
通讯作者:
YANG, JT
影响因子:
64.8
作者:
SHOEMAKER, KR;KIM, PS;BALDWIN, RL
通讯作者:
BALDWIN, RL
DOI:
--
发表时间:
1975
期刊:
影响因子:
--
作者:
D. E. Blagdon;M. Goodman
通讯作者:
M. Goodman
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
M. Hecht;J. Sturtevant;R. Sauer
通讯作者:
R. Sauer