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Literature summary extracted from
- Class I alpha-mannosidases are required for N-glycan processing and root development in Arabidopsis thaliana (2009), Plant Cell, 21, 3850-3867 .
Cloned(Commentary)
| EC Number | Cloned (Comment) | Organism |
|---|---|---|
| 3.2.1.113 | expressed in Nicotiana benthamiana leaf epidermal cells | Arabidopsis thaliana |
| 3.2.1.209 | expressed in Nicotiana benthamiana leaf epidermal cells | Arabidopsis thaliana |
Inhibitors
| EC Number | Inhibitors | Comment | Organism | Structure |
|---|---|---|---|---|
| 3.2.1.113 | 1-deoxymannojirimycin | - |
Arabidopsis thaliana |  |
| 3.2.1.113 | EDTA | - |
Arabidopsis thaliana | |
| 3.2.1.113 | kifunensine | - |
Arabidopsis thaliana | |
| 3.2.1.113 | additional information | not inhibitory: swainsonine; not inhibitory: swainsonine | Arabidopsis thaliana | |
| 3.2.1.209 | 1-deoxymannojirimycin | - |
Arabidopsis thaliana | |
| 3.2.1.209 | EDTA | - |
Arabidopsis thaliana | |
| 3.2.1.209 | kifunensine | - |
Arabidopsis thaliana | |
| 3.2.1.209 | additional information | not inhibitory: swainsonine | Arabidopsis thaliana |
Localization
| EC Number | Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|---|
| 3.2.1.113 | Golgi apparatus | - |
Arabidopsis thaliana | 5794 | - |
| 3.2.1.209 | endoplasmic reticulum | - |
Arabidopsis thaliana | 5783 | - |
| 3.2.1.209 | Golgi apparatus | isoform MNS3 probably resides in the cis-Golgi. the C-terminal region of MNS3 is sufficient for proper subcellular targeting | Arabidopsis thaliana | 5794 | - |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.2.1.113 | Arabidopsis thaliana | Q8H116 | - |
- |
| 3.2.1.113 | Arabidopsis thaliana | Q8H116 | isoform MNS2 | - |
| 3.2.1.113 | Arabidopsis thaliana | Q9C512 | - |
- |
| 3.2.1.113 | Arabidopsis thaliana | Q9C512 | isoform MNS1 | - |
| 3.2.1.209 | Arabidopsis thaliana | Q93Y37 | - |
- |
| 3.2.1.209 | Arabidopsis thaliana | Q93Y37 | isoform MNS3 | - |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.2.1.113 | Manalpha(1-2)Manalpha(1-2)Manalpha(1-3)[Manalpha(1-2)Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + H2O | - |
Arabidopsis thaliana | Manalpha(1-3)[Manalpha(1-3)[Manalpha(1-6)]Manalpha(1-6)]Manbeta(1-4)GlcNACbeta(1-4)GlcNAc + 3 D-mannose | - |
? | |
| 3.2.1.113 | methyl 2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside | - |
Arabidopsis thaliana | ? + D-mannose | - |
? | |
| 3.2.1.113 | [alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc]-N-Asn-[protein] + H2O | i.e. isomer 8A1,2,3B1,3 | Arabidopsis thaliana | [alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc]-N-Asn-[protein] + D-mannose | - |
? | |
| 3.2.1.209 | Manalpha(1-2)Manalpha(1-2)Manalpha(1-3)[Manalpha(1-2)Manalpha(1-3)[Manalpha(1-2)Manalpha(1-6)]Manalpha(1-6)]Manbeta(1-4)GlcNACbeta(1-4)GlcNAc + H2O | - |
Arabidopsis thaliana | Manalpha(1-2)Manalpha(1-2)Manalpha(1-3)[Manalpha(1-2)Manalpha(1-6)[Manalpha(1-3)]Manalpha(1-6)]Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc + D-mannose | - |
? | |
| 3.2.1.209 | methyl 2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside | - |
Arabidopsis thaliana | ? + D-mannose | - |
? | |
| 3.2.1.209 | [alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-alpha-D-GlcNAc]-N-Asn-[protein] + H2O | - |
Arabidopsis thaliana | [alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->6)]-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-alpha-D-GlcNAc]-N-Asn-[protein] + D-mannopyranose | - |
? | |
Synonyms
| EC Number | Synonyms | Comment | Organism |
|---|---|---|---|
| 3.2.1.113 | At1g51590 | - |
Arabidopsis thaliana |
| 3.2.1.113 | At3g21160 | - |
Arabidopsis thaliana |
| 3.2.1.113 | MANIa | - |
Arabidopsis thaliana |
| 3.2.1.113 | MANIb | - |
Arabidopsis thaliana |
| 3.2.1.113 | MNS1 | - |
Arabidopsis thaliana |
| 3.2.1.113 | MNS2 | - |
Arabidopsis thaliana |
| 3.2.1.209 | MNS3 | - |
Arabidopsis thaliana |
IC50 Value
| EC Number | IC50 Value | IC50 Value Maximum | Comment | Organism | Inhibitor | Structure |
|---|---|---|---|---|---|---|
| 3.2.1.113 | 0.00035 | - |
37°C, pH 6.0, substrate methyl 2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside | Arabidopsis thaliana | kifunensine | |
| 3.2.1.113 | 0.00047 | - |
37°C, pH 6.0, substrate methyl 2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside | Arabidopsis thaliana | kifunensine | |
| 3.2.1.113 | 0.03 | - |
37°C, pH 6.0, substrate methyl 2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside | Arabidopsis thaliana | 1-deoxymannojirimycin | |
| 3.2.1.113 | 0.04 | - |
37°C, pH 6.0, substrate methyl 2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside | Arabidopsis thaliana | 1-deoxymannojirimycin | |
| 3.2.1.209 | 0.0003 | - |
pH 6.0, 37°C, substrate methyl 2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside | Arabidopsis thaliana | kifunensine | |
| 3.2.1.209 | 0.035 | - |
pH 6.0, 37°C, substrate methyl 2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranoside | Arabidopsis thaliana | 1-deoxymannojirimycin | |
General Information
| EC Number | General Information | Comment | Organism |
|---|---|---|---|
| 3.2.1.113 | physiological function | in isoforms MNS1/MNS2 double mutant, MNS3 single mutant, accumulation of Man8GlcNAc2 is observed. A triple mutant lacking mannosidases MNS1, MNS2, and MNS3, EC 3.2.1.113, reveals the almost exclusive presence of Man9GlcNAc2 glycans. The MNS triple mutants display short, radially swollen roots and altered cell walls. Pharmacological inhibition of class I alpha-mannosidases in wild-type seedlings results in a similar root phenotype | Arabidopsis thaliana |
| 3.2.1.113 | physiological function | mutation results in Man(8)GlcNAc(2) accumulation in the Mns1 single mutant. In the Mns1/Mns2/Mns3 triple mutant, Man(9)GlcNAc(2) glycans are almost exclusively present. The Mns triple mutants display short, radially swollen roots and altered cell walls | Arabidopsis thaliana |
| 3.2.1.113 | physiological function | mutation results in Man(8)GlcNAc(2) accumulation in the Mns2 single mutant. In the Mns1/Mns2/Mns3 triple mutant, Man(9)GlcNAc(2) glycans are almost exclusively present. The Mns triple mutants display short, radially swollen roots and altered cell walls | Arabidopsis thaliana |
| 3.2.1.209 | physiological function | in the MNS3 single mutant, formation of aberrant N-glycans is observed. A triple mutant lacking mannosidases MNS1, MNS2, both EC 3.2.1.209, and MNS3 reveals the almost exclusive presence of Man9GlcNAc2 glycans. The MNS triple mutants display short, radially swollen roots and altered cell walls. Pharmacological inhibition of class I alpha-mannosidases in wild-type seedlings results in a similar root phenotype | Arabidopsis thaliana |
| 3.2.1.209 | physiological function | mutation results in the formation of aberrant N-glycans in the Mns3 single mutant. In the Mns1/Mns2/Mns3 triple mutant, Man(9)GlcNAc(2) glycans are almost exclusively present. The Mns triple mutants display short, radially swollen roots and altered cell walls | Arabidopsis thaliana |
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