MASP1 MBL associated serine protease 1
Gene ID: 5648, updated on 5-Mar-2024Gene type: protein coding
Also known as: 3MC1; MAP1; MASP; RaRF; CRARF; MAP-1; MASP3; MAp44; PRSS5; CRARF1; MASP-3
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- Go to complete Gene record for MASP1
- Go to Variation Viewer for MASP1 variants
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]
Associated conditions
See all available tests in GTR for this gene
| Description | Tests |
|---|---|
| 3MC syndrome 1 | See labs |
| Genome-wide association study combining pathway analysis for typical sporadic amyotrophic lateral sclerosis in Chinese Han populations. GeneReviews: Not available |
Genomic context
- Location:
- 3q27.3
- Sequence:
- Chromosome: 3; NC_000003.12 (187217282..187291737, complement)
- Total number of exons:
- 18
Variation
| Resource | Links for this gene |
|---|---|
| ClinVar | Variants reported to ClinVar |
| dbVar | Studies and variants |
| SNP | Variation Viewer for MASP1 variants |
| Genome viewer | Explore NCBI-annotated and select non-NCBI annotated genome assemblies |
- ClinVarRelated medical variations
- dbVarLink from Gene to dbVar
- MASP1 @ LOVD
- MedGenRelated information in MedGen
- OMIMLink to related OMIM entry
- PubMed (OMIM)Gene links to PubMed derived from omim_pubmed_cited links
- RefSeq RNAsLink to Nucleotide RefSeq RNAs
- RefSeqGeneLink to Nucleotide RefSeqGenes
- Variation ViewerRelated Variants
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