MASP1 (protein): Difference between revisions

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{{Infobox_gene}}
{{Infobox_gene}}
'''Mannan-binding lectin serine protease 1''' also known as '''mannose-associated serine protease 1''' (MASP-1) is an [[enzyme]] that in humans is encoded by the ''MASP1'' [[gene]].<ref name="pmid8240317">{{cite journal | vauthors = Takada F, Takayama Y, Hatsuse H, Kawakami M | title = A new member of the C1s family of complement proteins found in a bactericidal factor, Ra-reactive factor, in human serum | journal = Biochemical and Biophysical Research Communications | volume = 196 | issue = 2 | pages = 1003–9 | date = Oct 1993 | pmid = 8240317 | doi = 10.1006/bbrc.1993.2349 }}</ref><ref name="pmid8018603">{{cite journal | vauthors = Sato T, Endo Y, Matsushita M, Fujita T | title = Molecular characterization of a novel serine protease involved in activation of the complement system by mannose-binding protein | journal = International Immunology | volume = 6 | issue = 4 | pages = 665–9 | date = Apr 1994 | pmid = 8018603 | doi = 10.1093/intimm/6.4.665 }}</ref><ref name="entrez">{{cite web | title = Entrez Gene: mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)| url = https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=5648| accessdate = }}</ref>
'''Mannan-binding lectin serine protease 1''' also known as '''mannose-associated serine protease 1''' (MASP-1) is an [[enzyme]] that in humans is encoded by the ''MASP1'' [[gene]].<ref name="pmid8240317">{{cite journal | vauthors = Takada F, Takayama Y, Hatsuse H, Kawakami M | title = A new member of the C1s family of complement proteins found in a bactericidal factor, Ra-reactive factor, in human serum | journal = Biochemical and Biophysical Research Communications | volume = 196 | issue = 2 | pages = 1003–9 | date = Oct 1993 | pmid = 8240317 | doi = 10.1006/bbrc.1993.2349 }}</ref><ref name="pmid8018603">{{cite journal | vauthors = Sato T, Endo Y, Matsushita M, Fujita T | title = Molecular characterization of a novel serine protease involved in activation of the complement system by mannose-binding protein | journal = [[International Immunology]] | volume = 6 | issue = 4 | pages = 665–9 | date = Apr 1994 | pmid = 8018603 | doi = 10.1093/intimm/6.4.665 }}</ref><ref name="entrez">{{cite web | title = Entrez Gene: mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)| url = https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=5648| accessdate = }}</ref>


MASP-1 is involved in the [[mannan-binding lectin pathway|lectin pathway]] of the [[complement system]] and is responsible for cleaving [[Complement component 4|C4]] and [[Complement component 2|C2]] to form C4b2a, a [[C3-convertase]].<ref name="pmid10946292">{{cite journal | vauthors = Matsushita M, Thiel S, Jensenius JC, Terai I, Fujita T | title = Proteolytic activities of two types of mannose-binding lectin-associated serine protease | journal = Journal of Immunology | volume = 165 | issue = 5 | pages = 2637–42 | date = Sep 2000 | pmid = 10946292 | doi = 10.4049/jimmunol.165.5.2637 | url = http://www.jimmunol.org/cgi/content/abstract/165/5/2637 }}</ref>
MASP-1 is involved in the [[mannan-binding lectin pathway|lectin pathway]] of the [[complement system]] and is responsible for cleaving [[Complement component 4|C4]] and [[Complement component 2|C2]] into fragments to form a [[C3-convertase]].<ref name="pmid10946292">{{cite journal | vauthors = Matsushita M, Thiel S, Jensenius JC, Terai I, Fujita T | title = Proteolytic activities of two types of mannose-binding lectin-associated serine protease | journal = Journal of Immunology | volume = 165 | issue = 5 | pages = 2637–42 | date = Sep 2000 | pmid = 10946292 | doi = 10.4049/jimmunol.165.5.2637 | url = http://www.jimmunol.org/cgi/content/abstract/165/5/2637 }}</ref>


== Function ==
== Function ==
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== See also ==
== See also ==
* [[mannan-binding lectin]]
* [[Mannan-binding lectin]]
* [[MASP2 (protein)]]


== References ==
== References ==
{{Reflist}}
{{Reflist}}
{{-}}
{{-}}
== Further reading ==
== Further reading ==
{{refbegin | 2}}
{{refbegin | 2}}

Latest revision as of 15:32, 22 December 2018

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Identifiers
Aliases
External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

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RefSeq (protein)

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Location (UCSC)n/an/a
PubMed searchn/an/a
Wikidata
View/Edit Human

Mannan-binding lectin serine protease 1 also known as mannose-associated serine protease 1 (MASP-1) is an enzyme that in humans is encoded by the MASP1 gene.[1][2][3]

MASP-1 is involved in the lectin pathway of the complement system and is responsible for cleaving C4 and C2 into fragments to form a C3-convertase.[4]

Function

MASP-1 is 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. MASP-1 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. MASP-1 is also able to cleave fibrinogen and factor XIII and 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.[3]

See also

References

  1. Takada F, Takayama Y, Hatsuse H, Kawakami M (Oct 1993). "A new member of the C1s family of complement proteins found in a bactericidal factor, Ra-reactive factor, in human serum". Biochemical and Biophysical Research Communications. 196 (2): 1003–9. doi:10.1006/bbrc.1993.2349. PMID 8240317.
  2. Sato T, Endo Y, Matsushita M, Fujita T (Apr 1994). "Molecular characterization of a novel serine protease involved in activation of the complement system by mannose-binding protein". International Immunology. 6 (4): 665–9. doi:10.1093/intimm/6.4.665. PMID 8018603.
  3. 3.0 3.1 "Entrez Gene: mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)".
  4. Matsushita M, Thiel S, Jensenius JC, Terai I, Fujita T (Sep 2000). "Proteolytic activities of two types of mannose-binding lectin-associated serine protease". Journal of Immunology. 165 (5): 2637–42. doi:10.4049/jimmunol.165.5.2637. PMID 10946292.

Further reading

External links

This article incorporates text from the United States National Library of Medicine, which is in the public domain.