| Post Translational Modifications | The iron and 2-oxoglutarate dependent 3-hydroxylation of aspartate and asparagine is (R) stereospecific within EGF domains. N-glycosylated. Some N-linked glycan are of the complex-type. Autoproteolytic processing of the proenzyme produces the active enzyme composed on the heavy and the light chain held together by a disulfide bond. Isoform 1 but not isoform 2 is activated through autoproteolytic processing. |
| Function | Functions in the lectin pathway of complement, which performs a key role in innate immunity by recognizing pathogens through patterns of sugar moieties and neutralizing them. The lectin pathway is triggered upon binding of mannan-binding lectin (MBL) and ficolins to sugar moieties which leads to activation of the associated proteases MASP1 and MASP2. Functions as an endopeptidase and may activate MASP2 or C2 or directly activate C3 the key component of complement reaction. Isoform 2 may have an inhibitory effect on the activation of the lectin pathway of complement or may cleave IGFBP5. Also plays a role in development. |
| Protein Name | Mannan-Binding Lectin Serine Protease 1Complement Factor Masp-3Complement-Activating Component Of Ra-Reactive FactorMannose-Binding Lectin-Associated Serine Protease 1Masp-1Mannose-Binding Protein-Associated Serine ProteaseRa-Reactive Factor Serine Protease P100RarfSerine Protease 5 Cleaved Into - Mannan-Binding Lectin Serine Protease 1 Heavy Chain - Mannan-Binding Lectin Serine Protease 1 Light Chain |
| Database Links | Reactome: R-HSA-166662Reactome: R-HSA-166663Reactome: R-HSA-2855086Reactome: R-HSA-3000480Reactome: R-HSA-9705671 |
| Cellular Localisation | Secreted |
| Alternative Protein Names | Mannan-Binding Lectin Serine Protease 1 proteinComplement Factor Masp-3 proteinComplement-Activating Component Of Ra-Reactive Factor proteinMannose-Binding Lectin-Associated Serine Protease 1 proteinMasp-1 proteinMannose-Binding Protein-Associated Serine Protease proteinRa-Reactive Factor Serine Protease P100 proteinRarf proteinSerine Protease 5 Cleaved Into - Mannan-Binding Lectin Serine Protease 1 Heavy Chain - Mannan-Binding Lectin Serine Protease 1 Light Chain proteinMASP1 proteinCRARF proteinCRARF1 proteinPRSS5 protein |
Information sourced from Uniprot.org
