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 (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
19
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
3MC syndrome 1 Likely pathogenic; Pathogenic rs2474093039, rs387906752, rs387906753, rs387906754, rs533236263, rs763360042, rs1560255926, rs1579537069, rs1713182815, rs749073173, rs373254538, rs1714622835 RCV002308573
RCV000022977
RCV000022978
RCV000022979
RCV000022980
View all (7 more)
★★★★★
ClinVar: Pathogenic / Likely Pathogenic (≥5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
3MC SYNDROME GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CARNEVALE SYNDROME CTD, Disgenet
CTD, Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CRANIOFACIAL ABNORMALITIES CTD, Disgenet
CTD, Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
CRANIOFACIAL ULNAR RENAL SYNDROME Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
3MC syndrome 3MC syndrome Orphanet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Accessory nipple Accessory Nipple HPO_DG
★☆☆☆☆
Found in Text Mining only
Age related macular degeneration Age-related macular degeneration BEFREE 27605007
★☆☆☆☆
Found in Text Mining only
AMYOTROPHIC LATERAL SCLEROSIS 1 Lateral Sclerosis GWASCAT_DG 24529757
★☆☆☆☆
Found in Text Mining only
AMYOTROPHIC LATERAL SCLEROSIS 1, AUTOSOMAL RECESSIVE Amyotrophic lateral sclerosis GWASCAT_DG 24529757
★☆☆☆☆
Found in Text Mining only
AMYOTROPHIC LATERAL SCLEROSIS 6 (disorder) Amyotrophic lateral sclerosis GWASCAT_DG 24529757
★☆☆☆☆
Found in Text Mining only
Amyotrophic Lateral Sclerosis, Sporadic Lateral Sclerosis GWASCAT_DG 24529757
★☆☆☆☆
Found in Text Mining only
Angioedemas Hereditary Angioedema Pubtator 18250972 Associate
★☆☆☆☆
Found in Text Mining only
Arthritis Arthritis BEFREE 25070856, 27707997
★☆☆☆☆
Found in Text Mining only
Atrial Septal Defects Atrial Septal Defect HPO_DG
★☆☆☆☆
Found in Text Mining only