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

AIB13

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

Sequence: Boc-L-Aib-V-A-L-Aib-V-ΔA-ΔL-Aib-L-Aib-V-OMe

Core Sequence: L-Aib-V-A-L-Aib-V-ΔA-ΔL-Aib-L-Aib-V

R Value: Unknown

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

Conformation: Alpha helical

Reference

Aravinda, S., Shamala, N., Desiraju, S. and Balaram, P. (2002). A right handed peptide helix containing a central double d-amino acid segment. Chemical Communications, (20), pp.2454-2455.

Chemical Component Summary

Name of Peptide: tert-Butyloxycarbonyl-Leucine-Alpha amino iso butyric acid-Valine-Alanine-Leucine-Alpha amino iso butyric acid-Valine-Dehydro Alanine-Dehydro Leucine-Alpha amino iso butyric acid-Leucine-Alpha amino iso butyric acid-Valine-Methyl ester
Sequence: Boc-L-Aib-V-A-L-Aib-V-ΔA-ΔL-Aib-L-Aib-V-OMe
Core Sequence: L-Aib-V-A-L-Aib-V-ΔA-ΔL-Aib-L-Aib-V
Sequence Length: 13
Molecular Weight (amu): 1360
Molecular Formula: C67-H117-N13-O16
R Value: Unknown
N-Terminal Modification: tert-Butyloxycarbonyl
C-Terminal Modification: Methyl ester
Conformation: Alpha helical
Method: X - Ray Diffraction
Core Residue Involved Phi Psi Omega
Leucine -61.0 -19.9 174.9
Alpha amino iso butyric acid -46.6 -41.6 -177.6
Valine -64.2 -40.1 177.7
Alanine -59.4 -42.7 178.6
Leucine -67.1 -50.7 -174.8
Alpha amino iso butyric acid -59.6 -53.4 -176.5
Valine -71.1 -44.8 174.6
Dehydro-Alanine -49.3 -48.9 -178.7
Dehydro-Leucine -56.1 -54.9 -176.2
Alpha amino iso butyric acid -55.4 -42.5 -176.3
Leucine -75.5 -47.3 -166.9
Alpha amino iso butyric acid -68.2 -37.2 -168.3
Valine -65.1 135.6 177.8