MASP1 - MBL associated serine protease 1 Gene
Also Known as 3MC1; MAP1; MASP; RaRF; CRARF; MAP-1; MASP3; MAp44; PRSS5; CRARF1; MASP-3
Species: Homo sapiens
About MASP1
This gene has 15 transcripts (splice variants), 208 orthologues, 2 paralogues and is associated with 3 phenotypes. Biased expression in liver (RPKM 20.5), endometrium (RPKM 13.2) and 10 other tissues.
Summary
This gene encodes a serine protease that functions as a component of the lectin pathway of complement activation. The complement pathway plays an essential role in the innate and adaptive immune response. The encoded protein is synthesized as a zymogen and is activated when it complexes with the pathogen recognition molecules of lectin pathway, the mannose-binding lectin and the ficolins. This protein is not directly involved in complement activation but may play a role as an amplifier of complement activation by cleaving complement C2 or by activating another complement serine protease, MASP-2. The encoded protein is also able to cleave fibrinogen and factor XIII and may may be involved in coagulation. A splice variant of this gene which lacks the serine protease domain functions as an inhibitor of the complement pathway. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Apr 2010]
MASP1 Products (3)
| mRNA | Protein | Name |
|---|---|---|
| NM_001031849.3 | NP_001027019.1 | mannan-binding lectin serine protease 1 isoform 3 precursor |
| NM_001879.6 | NP_001870.3 | mannan-binding lectin serine protease 1 isoform 1 precursor |
| NM_139125.4 | NP_624302.1 | mannan-binding lectin serine protease 1 isoform 2 precursor |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables calcium ion binding |
IDA
IDA: Inferred from direct assay
|
18596036 | GOA |
| enables calcium-dependent protein binding |
IPI
IPI: Inferred from physical interaction
|
12421953 | GOA |
| enables identical protein binding |
IPI
IPI: Inferred from physical interaction
|
22854970 | GOA |
| enables peptidase activity |
IDA
IDA: Inferred from direct assay
|
10946292 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
10946292 | GOA |
| enables protein homodimerization activity |
IPI
IPI: Inferred from physical interaction
|
18596036 | GOA |
| enables serine-type endopeptidase activity |
IDA
IDA: Inferred from direct assay
|
11527969 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in complement activation, lectin pathway |
IMP
IMP: Inferred from mutant phenotype
|
17182967 | GOA |
| involved in negative regulation of complement activation |
IDA
IDA: Inferred from direct assay
|
11485744 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in extracellular space |
IDA
IDA: Inferred from direct assay
|
11485744 | GOA |
MASP1 Protein Structure
CUB: CUB domain (24 - 135)
EGF_CA: Calcium-binding EGF domain (139 - 181)
CUB: CUB domain (185 - 294)
Sushi: Sushi repeat (SCR repeat) (301 - 362)
Sushi: Sushi repeat (SCR repeat) (367 - 424)
Trypsin: Trypsin (449 - 691)
- 0
- 200
- 400
- 600
- 699 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
mannan-binding lectin serine protease 1 |
|
MASP1 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
MASP1 | P48740 | MBL2 | Homo sapiens | P11226 | 22607836 | |
|
Intra
|
MASP1 | P48740 | MBL2 | Homo sapiens | P11226 | 20956340 | |
|
Intra
|
MASP1 | P48740 | MBL2 | Homo sapiens | P11226 | 22607836 |
Recombinant MASP1 Proteins
| Cat. No. | Product Name | Accession | Purity |
|---|---|---|---|
| HY-P7444 | MASP1 Protein, Human (HEK293, His) | P48740-2 (H20-R728) | ≥ 95%, as determined by reducing SDS-PAGE. |
MASP1 Antibodies
| Cat. No. | Product Name | Application | Reactivity |
|---|---|---|---|
| HY-P810912 | MASP1 HC Antibody | WB, ICC/IF | Human, Mouse, Rat |
| HY-P89547 | MASP-3 Antibody (YA8891) | WB | human |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| 3mc Syndrome 1 |
|
|
| 3mc Syndrome |
|
|
| Cleft Lip |
|
|
| Iga Glomerulonephritis |
|
|
| Blepharophimosis |
|
|
| Klebsiella Pneumonia |
|
|
| Van Maldergem Syndrome 1 |
|
|
| Rapp-Hodgkin Syndrome |
|
|
| Learning Disability |
|
|
| 3mc Syndrome 2 |
|
|
| Chagas Disease |
|
|
| Glomerulonephritis |
|
|
| Acrofrontofacionasal Dysostosis |
|
|
| Megaesophagus |
|
|
| Complement Component 3 Deficiency |
|
|
| Craniosynostosis |
|
|
| Hereditary Angioedema |
|
|
| Radioulnar Synostosis |
|
|
| Hemolytic Uremic Syndrome, Atypical 1 |
|
|
| Cardiomyopathy, Dilated, 1l |
|
|
| Babesiosis |
|
|
| Hypertelorism |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Mus musculus | MASP1 | MGD | MGI:88492 |
| Bos taurus | MASP1 | VGNC | VGNC:31255 |
| Macaca mulatta | MASP1 | VGNC | VGNC:74662 |
| Canis familiaris | MASP1 | VGNC | VGNC:43030 |
| Rattus norvegicus | MASP1 | RGD | RGD:620213 |
| Felis catus | MASP1 | VGNC | VGNC:68190 |
| Others | MASP1 | NCBI |