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

AIB55

(Z)-Alpha amino iso butyric acid-Amino-iso-butyric-Alanine-Methyl ester

Sequence: (Z)-Aib-Aib-A-OMe

Core Sequence: Aib-Aib-A

R Value: Unknown

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

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: (Z)-Alpha amino iso butyric acid-Amino-iso-butyric-Alanine-Methyl ester
Sequence: (Z)-Aib-Aib-A-OMe
Core Sequence: Aib-Aib-A
Sequence Length: 3
Molecular Weight (amu): 407
Molecular Formula: C20-H29-N3-O6
R Value: Unknown
N-Terminal Modification: Phenylmethoxycarbonyl
C-Terminal Modification: Methyl ester
Conformation: 3(10) helical
Method: X - Ray Diffraction
Core Residue Involved Phi Psi Omega
Alpha amino iso butyric acid 58.1 36.8 175.8
Alpha amino iso butyric acid 68.3 18.6 -177.7
Alanine -136.2 Unmeasured Unmeasured