NMR conformational analysis on cyclic decapeptide template molecule

1999 ◽  
Vol 77 (8) ◽  
pp. 1394-1404 ◽  
Author(s):  
Zhenghong Peng

We report the synthesis and conformational analysis of a series of cyclic and bicyclic decapeptide templates for combinatorial chemistry. The peptides were synthesized via solid phase synthesis and followed by solution cyclization. The conformation of the peptides was studied by proton NMR spectroscopy in DMSO and in TFE-water. The structure of the peptide template was calculated with the program DIANA and followed by SA from the NMR experimental constraints. The peptide adopts a fold comprising two β-strands and two type II β-turns. The design of such a restained cyclic decapeptide template will be discussed along with Template Assembled Synthetic Proteins (TASP).Key words: solid phase peptide synthesis, cyclic decapeptide, NMR, conformational analysis, β-sheet.

2020 ◽  
Vol 18 (19) ◽  
pp. 3690-3696 ◽  
Author(s):  
Matthew P. Sarnowski ◽  
Juan R. Del Valle

Backbone amide hydroxylation of peptide strands enhances β-hairpin folding.


1987 ◽  
Vol 40 (8) ◽  
pp. 1389 ◽  
Author(s):  
JW Perich ◽  
NJ Langford ◽  
RB Johns

The octapeptide CF3C02-. + H2-Glu-Ser-Leu-Ser-Ser-Ser-Glu-Glu-OH (1) was synthesized by the Boc-mode of solid-phase peptide synthesis and hydrogenolytic cleavage of the assembled peptide from the resin support. The 13C n.m.r. spectrum of the octapeptide is presented along with its structural analysis by fast-atom bombardment (f.a.b.) mass spectrometry.


Synlett ◽  
2017 ◽  
Vol 29 (10) ◽  
pp. 1289-1292 ◽  
Author(s):  
Pablo Rivera-Fuentes ◽  
Alina Tirla ◽  
Moritz Hansen

Cyclic disulfides, such as asparagusic acid, enhance the uptake of a variety of cargoes into live cells. Here, we report a robust and scalable synthesis of an asparagusic acid modified lysine. This amino acid can be used in solid-phase peptide synthesis. We confirmed that incorporation of this building block into the sequence of a peptide increases its cellular uptake substantially.


1994 ◽  
Vol 222 (1) ◽  
pp. 173-181 ◽  
Author(s):  
Fabrice CORNILLE ◽  
Nathalie GOUDREAU ◽  
Damien FICHEUX ◽  
Heiner NIEMANN ◽  
Bernard P. ROQUES

2015 ◽  
Vol 13 (22) ◽  
pp. 6286-6290 ◽  
Author(s):  
Feng-Liang Wang ◽  
Ye Guo ◽  
Si-Jian Li ◽  
Qing-Xiang Guo ◽  
Jing Shi ◽  
...  

An alternative stapling strategy is described herein using Fmoc-solid phase peptide synthesis (SPSS) that employed pre-prepared diaminodiacid building blocks to introduce all-hydrocarbon staples into peptides by on-resin cyclization.


1981 ◽  
Vol 36 (10) ◽  
pp. 1345-1348 ◽  
Author(s):  
Kosaku Nöda ◽  
Erhard Gross

Abstract Dehydroalanine is introduced as pseudoprotecting group for the to-amide function of Asn and Gin in solid-phase peptide synthesis. Using Boc-X(Dha-NHMe)-OH (X = Asp or Glu), the model peptides, L-Leu-L-Asn-Gly-NH2 and L-Leu-Lr-Gln-Gly-NH2, were synthesized


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