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

AIB33

tert-Butyloxycarbonyl-Valine-Alpha amino iso butyric acid-Leucine-Alpha amino iso butyric acid-Alanine-Alpha amino iso butyric acid-Phenylalanine-Methyl ester

Sequence: Boc-V-Aib-L-Aib-A-Aib-F-OMe

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

R Value: 0.0449

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

Conformation: 3(10) helical

Reference

 KARLE, I., FLIPPEN-ANDERSON, J., UMA, K. and BALARAM, P. (2009). Peptide mimics for structural features in proteins. International Journal of Peptide and Protein Research, 42(5), pp.401-410.

Chemical Component Summary

Name of Peptide: tert-Butyloxycarbonyl-Valine-Alpha amino iso butyric acid-Leucine-Alpha amino iso butyric acid-Alanine-Alpha amino iso butyric acid-Phenylalanine-Methyl ester
Sequence: Boc-V-Aib-L-Aib-A-Aib-F-OMe
Core Sequence: V-Aib-L-Aib-A-Aib-F
Sequence Length: 7
Molecular Weight (amu): 818
Molecular Formula: C41-H67-N7O10
R Value: 0.0449
N-Terminal Modification: tert-Butyloxycarbonyl
C-Terminal Modification: Methyl ester
Conformation: 3(10) helical
Method: X - Ray Diffraction
Core Residue Involved Phi Psi Omega
Valine -49 -45 -176
Alpha amino iso butyric acid -49 -48 -175
Leucine -77 -38 180
Alpha amino iso butyric acid -56 -36 -175
Alanine -88 -4 -172
Alpha amino iso butyric acid 60 44 180
Phenylalanine 55 43 -174