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

AIB21

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

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

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

R Value: 0.057

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

Conformation: 3(10) helical

Reference

DATTA, S., SHAMALA, N., BANERJEE, A. and BALARAM, P. (2009). Hydrogen bonding in peptide helices Analysis of two independent helices in the crystal structure of a peptide Boc-Val-Ala-Leu-Aib-Val-Ala-Phe-OMe. The Journal of Peptide Research, 49(6), pp.604-611.

Chemical Component Summary

Name of Peptide: tert-Butyloxycarbonyl-Valine-Alanine-Leucine-Alpha amino iso butyric acid-Valine-Alanine-Phenylalanine-Methyl ester
Sequence: Boc-V-A-L-Aib-V-A-F-OMe
Core Sequence: V-A-L-Aib-V-A-F
Sequence Length: 7
Molecular Weight (amu): 818.06
Molecular Formula: C41-H67-N7O10
R Value: 0.057
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 -64 -48 -171
Alanine -64 -42 -179
Leucine -70 -40 179
Alpha amino iso butyric acid -55 -49 -174
Valine -77 -20 176
Alanine -75 -26 -175
Phenylalanine -163 108 -17d2