A manually curated database of peptides containing Dehydro-Phenyl-Alanine and Amino-Iso-Butyric Acid
Protein Data Bank[PDB] Structured Data File [SDF]

AIB22

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

Sequence: Boc-L-Aib-V-G-L-Aib-V-OMe

Core Sequence: L-Aib-V-G-L-Aib-V

R Value: 0.072

Residue Involved: Leucine| Alpha amino iso butyric acid | Valine| Glycine| Leucine| Alpha amino iso butyric acid | Valine

Conformation: 3(10) helical

Reference

Datta, S., Shamala, N., Banerjee, A., Pramanik, A., Bhattacharjya, S. and Balaram, P. (1997). Characterization of Helix Terminating Schellman Motifs in Peptides. Crystal Structure and Nuclear Overhauser Effect Analysis of a Synthetic Heptapeptide Helix. Journal of the American Chemical Society, 119(39), pp.9246-9251.

Chemical Component Summary

Name of Peptide: tert-Butyloxycarbonyl-Leucine-Alpha amino iso butyric acid-Valine-Glycine-Leucine-Alpha amino iso butyric acid-Valine-Methyl ester
Sequence: Boc-L-Aib-V-G-L-Aib-V-OMe
Core Sequence: L-Aib-V-G-L-Aib-V
Sequence Length: 7
Molecular Weight (amu): 784
Molecular Formula: C38-H69-N7-O10
R Value: 0.072
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 -50 -37 -175
Alpha amino iso butyric acid -48 -43 -174
Valine -63 -35 176
Glycine -70 -20 -179
Leucine -106 17 170
Alpha amino iso butyric acid 65 35 168
Valine -126 167 175