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TYR from Juglans regia (walnut, jr PPO1) is expressed in vivo as a latent 66.8 kDa pro-enzyme consisting of three domains 15 : an N-terminal chloroplast transit peptide (~12 kDa) 15 , the catalytically active domain (~39 kDa) and the C-terminal domain (~16 kDa) that shields the entrance to the catalytic pocket and keeps the enzyme in a latent state
While it is widely available through peptide suppliers, it lacks the standardized testing, safety oversight, and regulatory approval associated with conventional medications or supplements
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We do not publish sequence detail, structural characterisation, receptor pharmacology or comparisons with any licensed medicine for this item
