A manually curated database of peptides containing Dehydro-Phenyl-Alanine and Amino-Iso-Butyric Acid

AIB7

tert-Butyloxycarbonyl-Leucine-Phenylalanine-Valine-Alpha amino iso butyric acid-βPhenylalanine-Leucine-Phenylalanine-Valine-Methyl ester

Sequence: Boc-L-F-V-Aib-βF-L-F-V-OMe

Core Sequence: L-F-V-Aib-βF-L-F-V

R Value: 0.0625

Residue Involved: Leucine| Phenylalanine| Valine| Alpha amino iso butyric acid | β-Phenylalanine| Leucine| Phenylalanine| Valine

Conformation: 3(10) helical

Reference

Ananda, K., Vasudev, P., Sengupta, A., Poopathi Raja, K., Shamala, N. and Balaram, P. (2005). Polypeptide Helices in Hybrid Peptide Sequences. Journal of the American Chemical Society, 127(47), pp.16668-16674.

Chemical Component Summary

Name of Peptide: tert-Butyloxycarbonyl-Leucine-Phenylalanine-Valine-Alpha amino iso butyric acid-βPhenylalanine-Leucine-Phenylalanine-Valine-Methyl ester
Sequence: Boc-L-F-V-Aib-βF-L-F-V-OMe
Core Sequence: L-F-V-Aib-βF-L-F-V
Sequence Length: 8
Molecular Weight (amu): 1097.4
Molecular Formula: C60-H88-N8-O11
R Value: 0.0625
N-Terminal Modification: tert-Butyloxycarbonyl
C-Terminal Modification: Methyl ester
Conformation: 3(10) helical
Method: X - Ray Diffraction
Core Residue Involved Phi Psi Omega
Leucine -60.1 -28.4 179.3
Phenylalanine -60.6 -39.2 179.9
Valine -76.6 -45.2 -168.2
Alpha amino iso butyric acid -51.3 -49.4 -176.5
β-Phenylalanine -122.4 -98.2 -171
Leucine -62.4 -37.8 -172.1
Phenylalanine -86.7 -44 175.9
Valine -123.8 -41.9