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  • ZRB2381 - Anti-Tyrosine Hydroxylase Antibody, clone 3M12, ZooMAb® Rabbit Monoclonal

ZRB2381 Sigma-Aldrich

Anti-Tyrosine Hydroxylase Antibody, clone 3M12, ZooMAb® Rabbit Monoclonal

Green Alternative Antibody Enhanced Validation

recombinant, expressed in HEK 293 cells

Synonym: EC:, TH, Tyrosine 3-hydroxylase, Tyrosine 3-monooxygenase



Related Categories 12 Principles Aligned Products, Alphabetical Index, Antibodies, Antibodies (Greener), Chemical Synthesis,
product line   ZooMAb® learn more
conjugate   unconjugated
clone   3M12, monoclonal
  recombinant monoclonal
biological source   rabbit (recombinant)
application(s)   immunocytochemistry: suitable using 1:100
  immunofluorescence: 1:10-1:100
  immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:100-1:1,000
  western blot: suitable using 1:1,000
species reactivity   rat, mouse
species reactivity (predicted by homology)   bovine, human
mol wt   calculated mol wt 55.97 kDa
  observed mol wt ~58 kDa
enhanced validation   recombinant expression
Learn more about Antibody Enhanced Validation
form   lyophilized
shipped in   ambient
storage temp.   2-8°C
packaging   antibody small pack of 25 μL
antibody form   purified antibody
isotype   IgG
recombinant   expressed in HEK 293 cells
antibody product type   primary antibodies
greener alternative product characteristics   Waste Prevention
Designing Safer Chemicals
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
UniProt accession no.   P04177
Gene Information   rat ... TH(25085)


General description

ZooMAb antibodies represent an entirely new generation of recombinant monoclonal antibodies.

Each ZooMAb antibody is manufactured using our proprietary recombinant expression system, purified to homogeneity, and precisely dispensed to produce robust and highly reproducible lot-to-lot consistency. Only top-performing clones are released for use by researchers. Each antibody is validated for high specificity and affinity across multiple applications, including its most commonly used application. ZooMAb antibodies are reliably available and ready to ship when you need them.

Learn more about ZooMAb here.


Clone 3M12 is a ZooMAb rabbit recombinant monoclonal antibody that specifically detects Tyrosine Hydroxylase. It targets an epitope with in 15 amino acids from the N-terminal region.


KLH-conjugated linear peptide corresponding to 15 amino acids from the N-terminal region of rat Tyrosine 3-hydroxylase.


Anti-Tyrosine Hydroxylase, clone 3M12 ZooMAb, Cat. No. ZRB2381, is a recombinant Rabbit Monoclonal Antibody that specifically targets Tyrosine 3-hydroxylase and has been tested for use in Immunocytochemistry, Immunfluorescence, Immunohistochemistry (Paraffin), and Western Blotting.

Immunofluorescence Analysis: A 1:10 dilution from a representative lot detected Tyrosine Hydroxylase in mouse brain and rat brain tissue sections.

Immunocytochemistry Analysis: A 1:100 dilution from a representative lot detected Tyrosine Hydroxylase in PC12 cells.

Immunohistochemistry (Paraffin) Analysis: A 1:100 dilution from a representative lot detected Tyrosine Hydroxylase in mouse brain tissue sections.

Target description

Tyrosine 3-monooxygenase (UniProt: P04177; also known as EC:, Tyrosine 3-hydroxylase, TH) is encoded by the TH gene (Gene ID: 25085) in rat. Tyrosine hydroxylase acts as a rate-limiting enzyme of catecholamine biosynthesis. It hydroxylates tyrosine to L-DOPA and then L- DOPA is converted to dopamine by aromatic amino acid decarboxylase. Tyrosine hydroxylase requires tetrahydrobiopterin and molecular oxygen to convert tyrosine to DOPA. Its activity is regulated by phosphorylation at four different serine residues by multiple protein kinases. The N-terminal region of tyrosine hydroxylase plays a critical role in controlling its catalytic activity. Its catalytic domain is located in the C-terminal region and binds the substrates and the cofactor. Its activity is inhibited by a feedback mechanism by catecholamines. Dopamine is shown to bind to tyrosine hydroxylase competitively with tetrahydrobiopterin and interacts with the regulatory domain. Tyrosine hydroxylase activity can be modified in the presence of nitric oxide that results in nitration of tyrosine residues. Tyrosine hydroxylase activity and dopamine levels are shown to be significantly lower in the brain of Parkinson s disease subjects. Tyrosine hydroxylase deficiency leads to impaired synthesis of dopamine as well as epinephrine and norepinephrine. This ZooMAb recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals. (Ref.: Daubner SC et al., (2011). Arch. Biochem. Biophys. 508(1): 1-12).

Physical form

Purified recombinant rabbit monoclonal antibody IgG, lyophilized in PBS with 5% Trehalose, normal appearance a coarse or translucent resin. Contains no biocide or preservatives, such as azide, or any animal by-products. Larger pack sizes provided as multiples of 25 μL.


30 μg/mL after reconstitution at 25 μL. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type.

Storage and Stability

Recommend storage of lyophilized product at 2-8°C; Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial; Reconstitute each vial by adding 25 μL of filtered lab grade water or PBS; Reconstituted antibodies can be stored at 2-8°C, or -20°C for long term storage. Avoid repeated freeze-thaws.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Legal Information

ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety & Documentation

Safety Information

WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles


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