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

AIB3

Pivaloyl-Alanine-Alanine-Alpha amino iso butyric acid-Leucine-Alpha amino iso butyric acid-Phenylalanine-Methyl ester

Sequence: Piv-A-A-Aib-L-Aib-F-OMe

Core Sequence: A-A-Aib-L-Aib-F

R Value: Unknown

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

Conformation: Helical

Reference

Kantharaju, Raghothama, S., Aravinda, S., Shamala, N. and Balaram, P. (2010). Helical conformations of hexapeptides containing N-terminus diproline segments. Biopolymers, 94(3), pp.360-370.

Chemical Component Summary

Name of Peptide: Pivaloyl-Alanine-Alanine-Alpha amino iso butyric acid-Leucine-Alpha amino iso butyric acid-Phenylalanine-Methyl ester
Sequence: Piv-A-A-Aib-L-Aib-F-OMe
Core Sequence: A-A-Aib-L-Aib-F
Sequence Length: 6
Molecular Weight (amu): 742.91
Molecular Formula: C35-H56-N6-O8-N3-H2-O
R Value: Unknown
N-Terminal Modification: Pivaloyl
C-Terminal Modification: Methyl ester
Conformation: Helical
Method: X - Ray Diffraction
Core Residue Involved Phi Psi Omega
Alanine -56.8 149.7 175.8
Alanine -54.3 -39.6 -177.3
Alpha amino iso butyric acid -57.1 -30.3 177.1
Leucine -87.2 -51.8 -172.5
Alpha amino iso butyric acid -61.4 -38.4 -173.4
Phenylalanine -109.4 -38.9 -177