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

AIB54

Amino-iso-butyric-Alpha amino iso butyric acid-Amino-iso-butyric-Alpha amino iso butyric acid-Amino-iso-butyric-Methyl ester

Sequence: Aib-Aib-Aib-Aib-Aib-OMe

Core Sequence: Aib-Aib-Aib-Aib-Aib

R Value: Unknown

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

Conformation: 3(10) helical

Reference

Nagaraj, R. and Balaram, P. (1981). Alamethicin, a transmembrane channel. Accounts of Chemical Research, 14(11), pp.356-362.

Chemical Component Summary

Name of Peptide: Amino-iso-butyric-Alpha amino iso butyric acid-Amino-iso-butyric-Alpha amino iso butyric acid-Amino-iso-butyric-Methyl ester
Sequence: Aib-Aib-Aib-Aib-Aib-OMe
Core Sequence: Aib-Aib-Aib-Aib-Aib
Sequence Length: 4
Molecular Weight (amu): 457
Molecular Formula: C21-H39-N5-O6
R Value: Unknown
N-Terminal Modification: No Modification
C-Terminal Modification: Methyl ester
Conformation: 3(10) helical
Method: X - Ray Diffraction
Core Residue Involved Phi Psi Omega
Alpha amino iso butyric acid 61.6 25 179.1
Alpha amino iso butyric acid 50.6 38.6 173.1
Alpha amino iso butyric acid 54.3 35.7 173.2
Alpha amino iso butyric acid 64.2 24.1 171.7
Alpha amino iso butyric acid -53.3 -37.5