首页 | 本学科首页   官方微博 | 高级检索  
     


Vibrational analysis of peptides,polypeptides and proteins
Authors:V.M. NAIK,S. KRIMM,J.B. DENTON,G. N   METHY,H.A. SCHERAGA
Affiliation:V.M. NAIK,S. KRIMM,J.B. DENTON,G. NÉMETHY,H.A. SCHERAGA
Abstract:Normal mode calculations have been carried out on three low-energy structures of gramicidin S obtained from conformational energy calculations. When the results on the amide modes are compared with observed bands in the infrared and Raman spectra of crystalline gramicidin S and its N-deuterated derivative, one of the structures is clearly disfavored. Of the other two, one is slightly favored, and it corresponds to the lowest-energy structure obtained from the energy calculations. Spectra from solutions in DMSO and CH3 OH suggest that the molecular conformation is essentially retained in these solvents.
Keywords:gramicidin S  infrared spectra  normal mode calculations  Raman spectra  β  -turns
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号