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N-[tert-Butoxy­carbonyl­glycyl-(Z)-α,β-de­hydro­phenyl­alanyl­glycyl-(E)-α,β-de­hydro­phenyl­alanyl]­glycine methyl ester dihydrate

✍ Scribed by Makowski, Maciej ;Lisowski, Marek ;Maciąg, Anna ;Lis, Tadeusz

Book ID
104486431
Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
137 KB
Volume
62
Category
Article
ISSN
1600-5368

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✦ Synopsis

Á2H 2 O, adopts the type I -turn conformation for the Á Z Phe 2 -Gly 3 residues. It is stabilized by a 4 ! 1 intramolecular hydrogen bond between the Á E Phe 4 NH and Gly 1 CO groups. All the amino acid residues in the pentapeptide sequence are linked trans to each other. The crystal structure is stabilized by intra-and intermolecular hydrogen bonds.

📜 SIMILAR VOLUMES

N-[tert-Butoxy­carbonyl­glycyl-(Z)-α,β-d
N-[tert-Butoxy­carbonyl­glycyl-(Z)-α,β-dehydro­phenyl­alanylglycyl-(Z)-α,β-dehydro­phenyl­alan­yl]glycine methyl ester
✍ Makowski, Maciej ;Lisowski, Marek ;Mikołajczyk, Iwona ;Lis, Tadeusz 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 129 KB

values of torsion angles È and É show the presence of two type III 0 -turns, at the Á Z Phe 2 and Gly 3 residues, and Gly 3 and Á Z Phe 4 residues. All amino acids in the peptide are linked trans to each other. Two intramolecular N-HÁ Á ÁO hydrogen bonds, between CO and NH groups, stabilize -turns p