wildcat

Hey everyone, I had a question about the a part of the endocrine system, particularly the hormones called the chatecholamines. If the chatecholamines (epinephrine, norepinehprine and dopamine) are synthesized by modifying tyrosine, would a person with a metabolic disorder like albinoism (a tyrosinase deficiency)have a reduced fight-or-flight response when put in a stressful situation? I know that tyrosinase is an enzyme (otherwise, it wouldn't have the suffix -ase), but would that have any effect on the sympathetic nervous system? Thanks