Gene Gene information from NCBI Gene database.
Entrez ID 5648
Gene name MBL associated serine protease 1
Gene symbol MASP1
Synonyms (NCBI Gene)
3MC1CRARFCRARF1MAP-1MAP1MASPMASP-3MASP3MAp44PRSS5RaRF
Chromosome 3
Chromosome location 3q27.3
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 an
SNPs SNP information provided by dbSNP.
15
SNP ID Visualize variation Clinical significance Consequence
rs34207306 G>A Conflicting-interpretations-of-pathogenicity Genic downstream transcript variant, synonymous variant, non coding transcript variant, coding sequence variant
rs139497497 C>T Conflicting-interpretations-of-pathogenicity Intron variant, non coding transcript variant, coding sequence variant, synonymous variant, genic downstream transcript variant
rs141985299 A>G Conflicting-interpretations-of-pathogenicity Coding sequence variant, synonymous variant, non coding transcript variant, genic downstream transcript variant
rs377074720 G>A Likely-pathogenic Genic downstream transcript variant, intron variant, coding sequence variant, non coding transcript variant, stop gained
rs387906752 G>A Pathogenic Genic downstream transcript variant, intron variant, missense variant, coding sequence variant, non coding transcript variant
miRNA miRNA information provided by mirtarbase database.
197
miRTarBase ID miRNA Experiments Reference
MIRT054870 hsa-miR-125a-5p qRT-PCR 24675842
MIRT1132968 hsa-miR-103a CLIP-seq
MIRT1132969 hsa-miR-107 CLIP-seq
MIRT1132970 hsa-miR-1252 CLIP-seq
MIRT1132971 hsa-miR-1260 CLIP-seq
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
44
GO ID Ontology Definition Evidence Reference
GO:0001867 Process Complement activation, lectin pathway IBA
GO:0001867 Process Complement activation, lectin pathway IDA 18204047, 22691502
GO:0001867 Process Complement activation, lectin pathway IDA 9087411, 22511776, 22691502, 22854970, 22966085, 23386610
GO:0001867 Process Complement activation, lectin pathway IEA
GO:0001867 Process Complement activation, lectin pathway IMP 17182967
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
600521 6901 ENSG00000127241
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
P48740
Protein name Mannan-binding lectin serine protease 1 (EC 3.4.21.-) (Complement factor MASP-3) (Complement-activating component of Ra-reactive factor) (Mannose-binding lectin-associated serine protease 1) (MASP-1) (Mannose-binding protein-associated serine protease) (R
Protein 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
PDB 3DEM , 3GOV , 4AQB , 4DJZ , 4IGD , 4IW4 , 4KKD , 7PQO
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00431 CUB 20 135 CUB domain Domain
PF00431 CUB 185 294 CUB domain Domain
PF00084 Sushi 301 362 Sushi repeat (SCR repeat) Domain
PF00084 Sushi 367 432 Sushi repeat (SCR repeat) Domain
PF00089 Trypsin 449 691 Trypsin Domain
Tissue specificity TISSUE SPECIFICITY: Protein of the plasma which is primarily expressed by liver. {ECO:0000269|PubMed:11485744, ECO:0000269|PubMed:8018603, ECO:0000269|PubMed:8240317, ECO:0000269|PubMed:9367419}.
Sequence
Sequence length 699
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Complement and coagulation cascades
Staphylococcus aureus infection
Coronavirus disease - COVID-19
  Lectin pathway of complement activation
Initial triggering of complement
Ficolins bind to repetitive carbohydrate structures on the target cell surface
Scavenging by Class A Receptors
Associated diseases Disease associations from ClinVar categorized as Causal (Pathogenic/Likely Pathogenic) or Unknown.
164
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
3MC syndrome 1 Likely pathogenic; Pathogenic rs2474093039, rs387906752, rs387906753, rs387906754, rs533236263, rs763360042, rs1560255926, rs1579537069, rs1713182815, rs749073173, rs373254538, rs1714622835 RCV002308573
RCV000022977
RCV000022978
RCV000022979
RCV000022980
RCV000022981
RCV000694001
RCV000995806
RCV001199075
RCV001199074
RCV001198448
RCV001261284
Unknown Diseases with uncertain, conflicting, or no pathogenic evidence in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Gastric cancer Benign; Conflicting classifications of pathogenicity rs201073458, rs138989954 RCV005925889
RCV005897351
Hypertrophic cardiomyopathy Uncertain significance rs765808321 RCV001199400
MASP1-related disorder Benign; Likely benign; Uncertain significance; Conflicting classifications of pathogenicity rs13322090, rs72549176, rs747651002, rs16861801, rs116001173, rs145045341, rs144990402, rs2474078190, rs1714606491, rs368371184, rs28945073, rs368131756, rs199736644, rs770767772, rs1474876035
View all (14 more)
RCV003910943
RCV003933740
RCV003900898
RCV003909925
RCV003930116
RCV003957463
RCV003893371
RCV003921444
RCV003921730
RCV003974151
RCV003981367
RCV003899193
RCV003899654
RCV003947351
RCV003942287
RCV003954482
RCV003969720
RCV003968993
RCV003980238
RCV003918202
RCV003965584
RCV003938399
RCV003920410
RCV003895357
RCV003920445
RCV003970744
RCV003978340
RCV003902848
RCV003928658
Microcephaly Uncertain significance rs1713168510 RCV001252898
Associations from Text MiningDisease associations identified through Pubtator
Disease Name Relationship Type References
Angioedemas Hereditary Associate 18250972
Behcet Syndrome Associate 37264476
Blindness Associate 27605007
Brain Diseases Associate 26419238
Carcinoma Hepatocellular Associate 38115320
Carcinoma Squamous Cell Associate 19607727
Carnevale syndrome Associate 21035106
Central Nervous System Vascular Malformations Associate 26419238
Cleft Palate Associate 23792966
Complement Component 3 Deficiency Autosomal Recessive Associate 23841802