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Comparison of two thioxopeptide bond photoswitches in insect kinin 被引量:1
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作者 Cong, Zhi Yuan Yang, Long Fei +2 位作者 Jiang, Ling Ye, Dan dong, shou liang 《Chinese Chemical Letters》 SCIE CAS CSCD 2010年第4期476-479,共4页
The photoisomerization abilities of secondary thioxopeptide bond(CS-NH) and thioxo prolyl bond(CS-N) incorporated into the C-terminal pentapeptide of insect kinin were compared.H-Phe-Phe-Ψ[CS-NH]-D-Ala-Trp-Gly-NH_2 a... The photoisomerization abilities of secondary thioxopeptide bond(CS-NH) and thioxo prolyl bond(CS-N) incorporated into the C-terminal pentapeptide of insect kinin were compared.H-Phe-Phe-Ψ[CS-NH]-D-Ala-Trp-Gly-NH_2 and H-Phe-Tyr-Ψ[CS-N]- Pro-Trp-Gly-NH_2 were studied by UV-vis absorption.The isomerization energy barriers of the two segments,Ac-Phe-Ψ[CS-NH]- D-Ala-NH_2 and Ac-Tyr-Ψ[CS-N]-Pro-NH_2 picked from the two peptides,were calculated using ab initio method.The cis isomer of CS-N is more stable than th... 展开更多
关键词 PHOTOSWITCH Thioxopeptide bond Energy barrier
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