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. 2017 Feb 15;7(2):20. doi: 10.3390/brainsci7020020

Table 4.

Superoxide Dismutase Mimetic Activity of GHK and Analogs.

Molecule Superoxide Dismutase Mimetic Activity
Gly-His-Lys:Cu(2+) 100
Lys-His-Gly-Amide:Cu(2+) 21
Gly-His-Lys-Ala-Phe-Ala:Cu(2+) 561
Ala-His-Lys:Cu(2+) 563
Gly-His-Lys-Octyl Ester:Cu(2+) 810
Gly-His-Caprolactam:Cu(2+) 4500
His-Gly-Lys:Cu(2+) 22,300