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

DPA16

tert-Butyloxycarbonyl-Alanine-α,β‐dehydrophenylalanine-α,β‐dehydrophenylalanine-α,β‐dehydrophenylalanine-α,β‐dehydrophenylalanine-Methylamide

Sequence: Boc-A-ΔF-ΔF-ΔF-ΔF-NHMe

Core Sequence: A-ΔF-ΔF-ΔF-ΔF

R Value: 0.084

Residue Involved: Alanine | α,β‐dehydrophenylalanine | α,β‐dehydrophenylalanine | α,β‐dehydrophenylalanine | α,β‐dehydrophenylalanine

Conformation: Left-handed 3(10) helical

Reference

Ramagopal, U., Ramakumar, S., Joshi, R. and Chauhan, V. (2009). Crystal structure of Boc-LAla-ΔPhe-ΔPhe-ΔPhe-ΔPhe-NHMe: a left-handed helical peptide. The Journal of Peptide Research, 52(3), pp.208-215.

Chemical Component Summary

Name of Peptide: tert-Butyloxycarbonyl-Alanine-α,β‐dehydrophenylalanine-α,β‐dehydrophenylalanine-α,β‐dehydrophenylalanine-α,β‐dehydrophenylalanine-Methylamide
Sequence: Boc-A-ΔF-ΔF-ΔF-ΔF-NHMe
Core Sequence: A-ΔF-ΔF-ΔF-ΔF
Sequence Length: 5
Molecular Weight (amu): 782.86
Molecular Formula: C45-H46-N6O7
R Value: 0.084
N-Terminal Modification: tert-Butyloxycarbonyl
C-Terminal Modification: Methylamide
Conformation: Left-handed 3(10) helical
Method: X - Ray Diffraction
Core Residue Involved Phi Psi Omega
Alanine -60.9 134.8 -178.2
α,β‐dehydrophenylalanine 62.1 9.7 163.5
α,β‐dehydrophenylalanine 49 25.6 -169
α,β‐dehydrophenylalanine 49.2 23 -178.4
α,β‐dehydrophenylalanine