Reactome: A Curated Pathway Database
Results 1 to 10 of 21
Pathways (15) Reactions (4) Proteins (1) Others (1)
Protein: UniProt:P21397 MAOA (Homo sapiens)
Last changed: 2015-03-12 14:00:50

Pathway: Metabolism (Homo sapiens)
Metabolic processes in human cells generate energy through the oxidation of molecules consumed in the diet and mediate the synthesis of diverse essential molecules not taken in the diet as well as the inactivation and elimination of toxic ones generated endogenously or present in the extracellular environment. The processes of energy metabolism can be classified into two groups according to whether the
Last changed: 2015-03-06 23:15:47

Pathway: Neuronal System (Homo sapiens)
The human brain contains at least 100 billion neurons, each with the ability to influence many other cells. Clearly, highly sophisticated and efficient mechanisms are needed to enable communication among this astronomical number of elements. This communication occurs across synapses, the functional connection between neurons. Synapses can be divided into two general classes: electrical synapses and che
Last changed: 2015-03-06 23:15:47

Pathway: Neurotransmitter Clearance In The Synaptic Cleft (Homo sapiens)
Neurotransmitter released in the synaptic cleft binds to specific receptors on the post-synaptic cell and the excess of the neurotransmitter is cleared to prevent over activation of the post-synaptic cell. The neurotransmitter is cleared by either re-uptake by the pre-synaptic neuron, diffusion in the perisynaptic area, uptake by astrocytes surrounding the synaptic cleft or enzymatic degradation of th
Last changed: 2015-03-06 23:15:47

Pathway: Biological oxidations (Homo sapiens)
All organisms are constantly exposed to foreign chemicals every day. These can be man-made (drugs, industrial chemicals) or natural (alkaloids, toxins from plants and animals). Uptake is usually via ingestion but inhalation and transdermal routes are also common. The very nature of many chemicals that make them suitable for uptake by these routes, in other words their lipophilicty (favours fat so
Last changed: 2015-03-06 23:15:47

Pathway: Transmission across Chemical Synapses (Homo sapiens)
Chemical synapses are specialized junctions that are used for communication between neurons, neurons and muscle or gland cells. The synapse involves a pre-synaptic neuron and a post-synaptic neuron, muscle cell or glad cell. The pre and the post-synaptic cell are separated by a gap of 20nm called the synaptic cleft. The signals pass in a unidirection from pre-synaptic to post-synaptic. The pre-synapti
Last changed: 2015-03-06 23:15:47

Pathway: Neurotransmitter Release Cycle (Homo sapiens)
Neurotransmitter is stored in the synaptic vesicle in the pre-synaptic terminal prior to its release in the synaptic cleft upon depolarization of the pre-synaptic membrane. The release of the neurotransmitter is a multi-step process that is controlled by electrical signals passing through the axons in form of action potential. Neurotransmitters include glutamate, acetylcholine, nor-epinephrine, dopami
Last changed: 2015-03-06 23:15:47

Pathway: Phase 1 - Functionalization of compounds (Homo sapiens)
Phase 1 of metabolism is concerned with functionalization , that is the introduction or exposure of functional groups on the chemical structure of a compound. This provides a 'handle' for phase 2 conjugating species with which to react with. Many xenobiotics are lipophilic and almost chemically inert (e.g. PAHs) so would not necessarily undergo a phase 2 reaction. Making them more chemical
Last changed: 2015-03-06 23:15:47

Pathway: Metabolism of serotonin (Homo sapiens)
Serotonin is first metabolized to 5-hydroxyindole acetaldehyde by monoamine oxidase. 5-hydroxyindole acetaldehyde is then catalyzed by aldehyde dehydrogenase to form 5-hydroxyindole acetic acid
Last changed: 2015-03-06 23:15:47

Pathway: Norepinephrine Neurotransmitter Release Cycle (Homo sapiens)
Noradrenalin release cycle consists of reacidification of the empty clathrin sculpted monoamine transport vesicle, loading of dopamine into reacidified clathrin coated monamine transport vesicle, conversion of dopamine into Noradrenalin, docking and priming of the noradrenalin synaptic veiscle and then release of noradrenalin synaptic vesicle. In the peripheral nervous system in the peripheral nervous
Last changed: 2015-03-06 18:40:03

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