Monoamine oxidase B

MAOB
Available structures
PDB	Ortholog search: PDBe RCSB
List of PDB id codes
	1GOS, 1OJ9, 1OJA, 1OJC, 1OJD, 1S2Q, 1S2Y, 1S3B, 1S3E, 2BK3, 2BK4, 2BK5, 2BYB, 2C64, 2C65, 2C66, 2C67, 2C70, 2C72, 2C73, 2C75, 2C76, 2V5Z, 2V60, 2V61, 2VRL, 2VRM, 2VZ2, 2XCG, 2XFN, 2XFO, 2XFP, 2XFQ, 2XFU, 3PO7, 3ZYX, 4A79, 4A7A, 4CRT
Identifiers
Aliases	MAOB, Monoamine oxidase B
External IDs	OMIM: 309860; MGI: 96916; HomoloGene: 20251; GeneCards: MAOB; OMA:MAOB - orthologs
Gene location (Human)
Chr.	X chromosome (human)
End	43,882,450 bp
Gene location (Mouse)
Chr.	X chromosome (mouse)
End	16,683,605 bp
RNA expression pattern
	Top expressed in
	saphenous vein; ; external globus pallidus; ; decidua; ; tail of epididymis; ; middle frontal gyrus; ; hypothalamus; ; left ovary; ; superior vestibular nucleus; ; liver; ; right lobe of liver;
	Top expressed in
	epithelium of small intestine; ; left lobe of liver; ; Epithelium of choroid plexus; ; upper respiratory tract; ; nasal epithelium; ; olfactory epithelium; ; medial dorsal nucleus; ; islet of Langerhans; ; interventricular septum; ; myocardium of ventricle;
	More reference expression data
	More reference expression data
Gene ontology
Molecular function	protein homodimerization activity; flavin adenine dinucleotide binding; electron transfer activity; oxidoreductase activity; primary amine oxidase activity;
Cellular component	integral component of membrane; membrane; mitochondrial outer membrane; mitochondrion; mitochondrial inner membrane; mitochondrial envelope; extracellular exosome;
Biological process	response to selenium ion; substantia nigra development; response to corticosterone; response to steroid hormone; negative regulation of serotonin secretion; response to lipopolysaccharide; response to aluminum ion; dopamine catabolic process; hydrogen peroxide biosynthetic process; response to ethanol; response to toxic substance; positive regulation of dopamine metabolic process; neurotransmitter catabolic process; electron transport chain;
	Sources:Amigo / QuickGO
Orthologs
	4129
	109731
	ENSG00000069535
	ENSMUSG00000040147
	P27338
	Q8BW75
	NM_000898
	NM_172778
	NP_000889
	NP_766366
	Wikidata
View/Edit Human	View/Edit Mouse

Monoamine oxidase B (MAO-B) is an enzyme that in humans is encoded by the MAOB gene.

The protein encoded by this gene belongs to the flavin monoamine oxidase family. It is an enzyme located in the outer mitochondrial membrane. It catalyzes the oxidative deamination of biogenic and xenobiotic amines and plays an important role in the catabolism of neuroactive and vasoactive amines in the central nervous system and peripheral tissues. This protein preferentially degrades benzylamine and phenethylamine. Similar to monoamine oxidase A (MAO-A), MAO-B is also involved in the catabolism of dopamine.