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

AIB6

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

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

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

R Value: 0.0791

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

Conformation: 3(10) helical

Reference

Sengupta, A., Mahalakshmi, R., Shamala, N. and Balaram, P. (2008). Aromatic interactions in tryptophan-containing peptides: crystal structures of model tryptophan peptides and phenylalanine analogs*. The Journal of Peptide Research, 65(1), pp.113-129.

Chemical Component Summary

Name of Peptide: tert-Butyloxycarbonyl-Alanine-Alpha amino iso butyric acid-Leucine-Tryptophan-Valine-Methyl ester
Sequence: Boc-A-Aib-L-W-V-OMe
Core Sequence: A-Aib-L-W-V
Sequence Length: 5
Molecular Weight (amu): 718.84
Molecular Formula: C35-H50-N6-O8-2H2-O
R Value: 0.0791
N-Terminal Modification: tert-Butyloxycarbonyl
C-Terminal Modification: Methyl ester
Conformation: 3(10) helical
Method: X - Ray Diffraction
Core Residue Involved Phi Psi Omega
Alanine -58.7 -28.1 -178.2
Alpha amino iso butyric acid -50.2 -37.1 -173.9
Leucine -77.2 -14.2 -162.9
Tryptophan -123.2 4.8 177
Valine -92.5 -19.2 -175.5f