L-DOPA Decarboxylase is an enzyme that plays a crucial role in the synthesis of the neurotransmitter dopamine. It catalyzes the conversion of L-DOPA (levodopa) into dopamine by removing a carboxyl group. This reaction is essential for the production of dopamine, which is important for regulating mood, movement, and other functions in the brain. This enzyme is particularly significant in the treatment of Parkinson's disease, a condition characterized by low levels of dopamine. Medications containing L-DOPA are often administered to increase dopamine levels, and L-DOPA Decarboxylase helps facilitate this process, improving symptoms in patients.