Tryptophan-derived peptides. 1: Crystal structure and solution conformation of Boc-Gly-Trp-Ala-OtBu

Autor: Per Halfdan Nielsen, Uffe Anthoni, Jan H. Jensen, Carsten Christophersen, Claus Flensburg, Mogens Jakobsen
Rok vydání: 1996
Předmět:
Zdroj: Structural Chemistry. 7:103-110
ISSN: 1572-9001
1040-0400
Popis: The solid-state structure of Boc-Gly-Trp-Ala-OBut was determined by single-crystal X-ray diffraction analysis. The tripeptide gave crystals belonging to the orthorhombic systemP212121 and at 122.0(5) K:a=11.0663(12),b=14.107(2),c=17.275(2) A,V=2697.0(5) A3Z=4,R(F)=0.0259, andR w(F)=0.0695. The peptide adopts a type-Iβ-turn in the solid state with a single, rather weak, intramolecular hydrogen bond between the Boc-CO and Ala-NH groups (N⋯O 3.082(1) A
Databáze: OpenAIRE