Anti-Monoamine Oxidase B/MAOB antibody

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.

Activity summary

Monoamine oxidase B (MAOB) also known as MAO-B or MOA-B is a flavoenzyme that catalyzes the oxidative deamination of amines. It plays an important role in the catabolism of monoamines including neurotransmitters such as dopamine. The enzyme is approximately 58 kDa in size and is primarily expressed in the brain particularly in the basal ganglia region but also found in platelets and other tissues. MAOB exists in the outer mitochondrial membrane where it is closely associated with cellular respiration processes.

Biological function summary

Monoamine oxidase B aids in the regulation of neurotransmitter levels by breaking down dopamine phenylethylamine and other bioamines. It acts individually rather than forming part of larger protein complexes. This regulatory action influences several neurological processes contributing to the synaptic transmission and maintaining homeostasis in central nervous system functions. The activity of MAOB varies with age generally increasing over time which has implications for its role in aging-related neural changes.

Pathways

Monoamine oxidase B is involved in the dopamine metabolic pathway which impacts neurological functions and behaviors. It also connects to the phenylethylamine catabolic process influencing neuropsychiatric states. MAOB directly interacts with proteins like dopamine transporter proteins that influence dopamine reuptake and it works alongside monoamine oxidase A (MAOA) which degrades other neurotransmitters such as serotonin and norepinephrine providing a comprehensive regulatory mechanism within the monoamine system.

Associated diseases and disorders

Monoamine oxidase B has a significant connection to neurodegenerative diseases such as Parkinson's disease and psychiatric disorders like depression. Its increased activity is linked to the neurodegeneration observed in Parkinson's due to excessive breakdown of dopamine. Through the process of oxidative stress MAOB contributes to neuronal damage particularly when interacting with proteins like α-synuclein aggravating the disease pathology. Additionally its regulation of dopamine levels can influence depressive states indicating potential therapeutic targets for MAOB inhibitors in these conditions.