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Human DOPA Decarboxylase / DDC Protein (His Tag)

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Human DDC Protein Product Information
Synonym:AADC, DDC
Protein Construction:A DNA sequence encoding the full length of human DDC (NP_000781.1) (Met 1-Glu 480) was expressed with a polyhistidine tag at the C-terminus.
Expressed Host:Baculovirus-Insect Cells
Shipping:Liquid. It is shipped out with blue ice.
Human DDC Protein QC Testing
Purity:> 90 % as determined by SDS-PAGE
Bio-Activity:Measured by its ability to convert the substrate 3, 4-dihydroxy L-phenylalanine (L-Dopa) to 3, 4-dihydroxyphenylethylamine (dopamine). The dopamine product is measured by its absorbance at 340 nm after derivatization with trinitrobenzene sulfonic acid The specific activity is >1500 pmoles/min/μg .
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Met
Molecule Mass:The recombinant human DDC consists of 490 amino acids and predicts a molecular mass of 55 kDa. It migrates as an approximately 48 kDa protein in SDS-PAGE under reducing conditions.
Formulation:Supplied as sterile 50mM Tris, 100mM NaCl, pH 8, 10% glycerol
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human DDC Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Human DDC Protein SDS-PAGE
Human DOPA Decarboxylase / DDC Protein (His Tag) SDS-PAGE
Other DDC Recombinant Protein Products
DOPA Decarboxylase/DDC Background

Dopa Decarboxylase (DDC), also known as AADC and Aromatic-L-amino acid decarboxylase, is a 54 kDa member of the group II decarboxylase family of proteins.It is a vitamin B6-dependent homodimeric enzyme that catalyzes the decarboxylation of both L-3,4-dihydroxyphenylalanine (L-DOPA) and L-5-hydroxytryptophan to dopamine and serotonin, respectively, which are major mammalian neurotransmitters and hormones belonging to catecholamines and indoleamines. Since L-DOPA is regularly used to treat the symptoms of Parkinson's disease, the catalytic pathway is of particular research interest. Defects of DDC are associated with severe developmental delay, oculogyric crises (OGC), as well as autosomal recessive disorder AADC deficiency, an early onset inborn error in neurotransmitter metabolism which can lead to catecholamine and serotonin deficiency.

Human DOPA Decarboxylase/DDC References
  • Ichinose, H. et al.,1989,Biochem. Biophys. Res. Commun. 164: 1024-1030.
  • Lisa, J. S. et al., 1992, Genomics 13: 469-471.
  • Moore, P. S. et al.,1996, Biochem. J. 315:249-256.
  • Bertoldi, M. et al., 2003, Biochim. Biophys. Acta. 1647:42-47.
  • Vassilacopoulou, D. et al., 2004, Neurochem. Res. 29: 1817-1823.
  • Ma, J.Z., et al., 2005, Hum. Mol. Genet. 14: 1691-1698.
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    Catalog: 10560-H08B-10
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    All information of our products is subject to change without notice. Please refer to COA enclosed in shipped package for the newest information.