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

AIB19

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

Sequence: Boc-Aib-G-L-OMe

Core Sequence: Aib-G-L

R Value: 0.057

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

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-Alpha amino iso butyric acid-Glycine-Leucine-Methyl ester
Sequence: Boc-Aib-G-L-OMe
Core Sequence: Aib-G-L
Sequence Length: 3
Molecular Weight (amu): 387.5
Molecular Formula: C18-H33-N3-O
R Value: 0.057
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
Alpha amino iso butyric acid -67.7 -19.1 -161.7
Glycine -79 -17.7 178.6
Leucine -84.2 158.5 179.2