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

AIB25

tert-Butyloxycarbonyl-Alanine-Isoleucine-Alpha amino iso butyric acid-Methyl ester

Sequence: Boc-A-I-Aib-OMe

Core Sequence: A-I-Aib

R Value: 0.074

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

Conformation: Beta sheet

Reference

DATTA, S., SHAMALA, N., GURUNATH, R. and BALARAM, P. (2009). Observation of a mixed antiparallel and parallel β-sheet motif in the crystal structure of Boc-Ala-Ile-Aib-OMe. International Journal of Peptide and Protein Research, 48(3), pp.209-214.

Chemical Component Summary

Name of Peptide: tert-Butyloxycarbonyl-Alanine-Isoleucine-Alpha amino iso butyric acid-Methyl ester
Sequence: Boc-A-I-Aib-OMe
Core Sequence: A-I-Aib
Sequence Length: 3
Molecular Weight (amu): 401.48
Molecular Formula: C19-O6-N3-H35
R Value: 0.074
N-Terminal Modification: tert-Butyloxycarbonyl
C-Terminal Modification: Methyl ester
Conformation: Beta sheet
Method: X - Ray Diffraction
Core Residue Involved Phi Psi Omega
Alanine -96 166 174
Isoleucine 87 -113 174
Alpha amino iso butyric acid -53 -38 -175