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

AIB20

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

Sequence: Boc-G-L-Aib-OMe

Core Sequence: G-L-Aib

R Value: 0.056

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

Conformation: Beta turn

Reference

Raghothama, S., Chaddha, M., Banumathi, S., Ravikumar, K., Velmurugan, D. and Balaram, P. (1998). Conformational interconversions in peptide β-turns: Discrimination between enantiomeric conformations by chiral perturbation. Biopolymers, 45(3), pp.191-202.

Chemical Component Summary

Name of Peptide: tert-Butyloxycarbonyl-Glycine-Leucine-Alpha amino iso butyric acid-Methyl ester
Sequence: Boc-G-L-Aib-OMe
Core Sequence: G-L-Aib
Sequence Length: 3
Molecular Weight (amu): 387,.5
Molecular Formula: C18-H33-N3-O6
R Value: 0.056
N-Terminal Modification: tert-Butyloxycarbonyl
C-Terminal Modification: Methyl ester
Conformation: Beta turn
Method: X-Ray diffraction and NMR
Core Residue Involved Phi Psi Omega
Glycine 59.9 -151.1 178.1
Leucine -76.2 -26.5 -176.6
Alpha amino iso butyric acid 45.6 -136.3 -169.5