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

DPA24

tert-Butyloxycarbonyl-Leucine-Phenylalanine-Alanine-α,β‐dehydrophenylalanine-Leucine-Methyl ester

Sequence: Boc-L-F-A-ΔF-L-OMe

Core Sequence: L-F-A-ΔF-L

R Value: 0.044

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

Conformation: Right-handed 3(10) helical

Reference

Rajashankar, K., Ramakumar, S., Mal, T., Jain, R. and Chauhan, V. (1995). Synthesis, and crystal and molecular structure of the 310-helical ?,?-dehydro pentapeptide Boc-Leu-Phe-Ala-?Phe-Leu-Ome. Biopolymers, 35(2), pp.141-147.

Chemical Component Summary

Name of Peptide: tert-Butyloxycarbonyl-Leucine-Phenylalanine-Alanine-α,β‐dehydrophenylalanine-Leucine-Methyl ester
Sequence: Boc-L-F-A-ΔF-L-OMe
Core Sequence: L-F-A-ΔF-L
Sequence Length: 5
Molecular Weight (amu): 721.9
Molecular Formula: C39-H55-N5-O8
R Value: 0.044
N-Terminal Modification: tert-Butyloxycarbonyl
C-Terminal Modification: Methyl ester
Conformation: Right-handed 3(10) helical
Method: X - Ray Diffraction
Core Residue Involved Phi Psi Omega
Leucine -59.5 -38.8 174.0
Phenylalanine -66.5 -19.5 177.8
Alanine -66.4 -15.1 172.3
α,β‐dehydrophenylalanine -67.3 -16.1 -177.4
Leucine -93.0 -164.5 Unmeasured