Cloned (Comment) | Organism |
---|---|
expression of wild-type and mutant enzymes, expression of selenomethionine-labeled truncated mutant MAO-N-D5 in Escherichia coli strain B834(DE3) | Aspergillus niger |
Crystallization (Comment) | Organism |
---|---|
purified recombinant mutants MAO-N-D3 and MAO-N-D5, and truncated selenomethionine-labeled mutant MAO-N-D5, X-ray diffraction structure determination and analysis, multiple-wavelength anomalous diffraction and molecular replacement | Aspergillus niger |
Protein Variants | Comment | Organism |
---|---|---|
N336S/M348K/I246M | gain-of-function mutant MAO-N-D3, structure analysis, overview. Of the mutations that confer the ability to catalyse the oxidation of secondary amines in MAO-N-D3, Asn336Ser reduces steric bulk behind Trp430 of the aromatic cage and Ile246Met confers greater flexibility within the substrate binding site | Aspergillus niger |
N336S/M348K/I246M/T384N/D385S | gain-of-function mutant MAO-N-D5 is able to oxidise tertiary amines, structure analysis, overview. Of the mutations that confer the ability to catalyse the oxidation of secondary amines in MAO-N-D3, Asn336Ser reduces steric bulk behind Trp430 of the aromatic cage and Ile246Met confers greater flexibility within the substrate binding site. The two additional mutations, Thr384Asn and Asp385Ser, appear to influence the active-site environment remotely through changes in tertiary structure that perturb the side chain of Phe382, again altering the steric and electronic character of the active site near FAD | Aspergillus niger |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | Aspergillus niger | MAO-N is a flavoenzyme that catalyses the oxidative deamination of primary amines, substrate specificity, overview | ? | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Aspergillus niger | - |
- |
- |
Posttranslational Modification | Comment | Organism |
---|---|---|
flavoprotein | - |
Aspergillus niger |
Purification (Comment) | Organism |
---|---|
recombinant selenomethionine-labeled truncated mutant MAO-N-D5 from Escherichia coli strain B834(DE3) by nickel affinity chromatography | Aspergillus niger |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | MAO-N is a flavoenzyme that catalyses the oxidative deamination of primary amines, substrate specificity, overview | Aspergillus niger | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
homotetramer | MAO-N exists as a homotetramer with a large channel at its centre | Aspergillus niger |
Synonyms | Comment | Organism |
---|---|---|
MAO-N | - |
Aspergillus niger |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
FAD | flavoenzyme, a hydrophobic cavity extends from the protein surface to the active site, where a noncovalently bound FAD sits at the base of an aromatic cage, the sides of which are formed by Trp430 and Phe466, binding structure, overview | Aspergillus niger |