The enzyme tyrosine hydroxylase (TH), also designated tyrosine 3-monooxygenase (TY3H), catalyzes the conversion of tyrosine to L-dopa, which is the rate limiting step in the biosynthesis of catecholamines such as dopamine, adrenalin and noradrenalin. TH is thought to play a role in the pathogenesis of Parkinson's disease, which is associated with reduced dopamine levels. Two transcription factor binding sites in the proximal region of the TH gene, the TPA-responsive element (TRE) and the c-AMP responsive element (CRE), have been implicated in the complex regulation of the TH gene. TH is also known to be upregulated by the glia maturation factor (GMF), a Cdc 10/SWI6 motif-containing protein called V-1, and a variety of additional compounds.
Background References
1. Ho TJ et al. Effects of Electroacupuncture on Methamphetamine-Induced Behavioral Changes in Mice. Evid Based Complement Alternat Med 2017:5642708 (2017).
2. Bourdenx M et al. Nanoparticles restore lysosomal acidification defects: Implications for Parkinson and other lysosomal-related diseases. Autophagy 12:472-83 (2016).
Sequence Similarity
Belongs to the biopterin-dependent aromatic amino acid hydroxylase family.
ICC staining Tyrosine Hydroxylase in N2A cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining Tyrosine Hydroxylase in SHG-44 cells (green). The nuclear counter stain is DAPI (blue). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
Immunohistochemical analysis of paraffin-embedded rat brain tissue using anti-Tyrosine Hydroxylase antibody. Counter stained with hematoxylin.
Immunohistochemical analysis of paraffin-embedded mouse brain tissue using anti-Tyrosine Hydroxylase antibody. Counter stained with hematoxylin.
Western blot analysis of Tyrosine Hydroxylase on PC-12 cell lysate with Rabbit anti-Tyrosine Hydroxylase antibody (R1706-18) at 1/1,000 dilution.
Lysates/proteins at 10 µg/Lane. Exposure time: 60 seconds; ECL: K1801
Blocking: 5% NFDM/TBST, 1 hour at room temperature Primary antibody: R1706-18, 1/1,000 in 5% NFDM/TBST, overnight at 4 ℃ Secondary antibody: Goat anti-Rabbit IgG-HRP (HA1001), 1/100,000 in 5% NFDM/TBST, 1 hour at room temperature
Predicted band size: 58 kDa Observed band size: 58 kDa
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