Map44: Difference between revisions

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'''Mannose-binding lectin-associated protein of 44 kDa''' (MAp44) is a protein arising from the human [[MASP1 (protein)|MASP1]] gene. MASP-1, MASP-3 and MAp44 are alternative splice products of the MASP1 gene. MAp44 has been suggested to act as a competitive inhibitor of [[lectin pathway]] activation, by displacing MASP-2 from MBL, hence preventing cleavage of C4 and C2 <ref>{{cite journal|last=Degn|first=Søren |author2=Annette G. Hansen |author3=Rudi Steffensen |author4=Christian Jacobsen |author5=Jens C. Jensenius |author6=Steffen Thiel|title=MAp44, a Human Protein Associated with Pattern Recognition  Molecules of the Complement System and Regulating the Lectin Pathway of Complement Activation|journal=Journal of Immunology|date=November 2009|volume=183|pages=7371–7378|doi=10.4049/jimmunol.0902388|pmid=19917686|url=http://www.jimmunol.org/cgi/content/full/183/11/7371|issue=11}}</ref>
'''Mannose-binding lectin-associated protein of 44 kDa''' (MAp44) is a protein arising from the human [[MASP1 (protein)|MASP1]] gene. MASP-1, MASP-3 and MAp44 are alternative splice products of the MASP1 gene. MAp44 has been suggested to act as a competitive inhibitor of [[lectin pathway]] activation, by displacing MASP-2 from MBL, hence preventing cleavage of C4 and C2 <ref>{{cite journal | vauthors = Degn SE, Hansen AG, Steffensen R, Jacobsen C, Jensenius JC, Thiel S | title = MAp44, a human protein associated with pattern recognition molecules of the complement system and regulating the lectin pathway of complement activation | journal = Journal of Immunology | volume = 183 | issue = 11 | pages = 7371–8 | date = December 2009 | pmid = 19917686 | doi = 10.4049/jimmunol.0902388 | url = http://www.jimmunol.org/cgi/content/full/183/11/7371 }}</ref>


==See also==
== See also ==
* [[mannan-binding lectin]]
* [[mannan-binding lectin]]
* [[lectin pathway]]
* [[lectin pathway]]


==References==
== References ==
{{Reflist|2}}
{{Reflist}}


==External links==
== External links ==
* {{MeshName|MASP+Proteases}}
* {{MeshName|MASP+Proteases}}


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{{DEFAULTSORT:MAp44 (Protein)}}
{{DEFAULTSORT:MAp44 (Protein)}}
[[Category:Complement system]]
[[Category:Complement system]]


{{gene-3-stub}}
{{gene-3-stub}}

Latest revision as of 05:25, 20 March 2018

mannan-binding lectin serine peptidase 1 (C4/C2 activating component of Ra-reactive factor)
Identifiers
SymbolMASP1
Alt. symbolsCRARF, PRSS5
Entrez5648
HUGO6901
OMIM600521
RefSeqNM_001879
UniProtP48740
Other data
LocusChr. 3 q27-q28

Mannose-binding lectin-associated protein of 44 kDa (MAp44) is a protein arising from the human MASP1 gene. MASP-1, MASP-3 and MAp44 are alternative splice products of the MASP1 gene. MAp44 has been suggested to act as a competitive inhibitor of lectin pathway activation, by displacing MASP-2 from MBL, hence preventing cleavage of C4 and C2 [1]

See also

References

  1. Degn SE, Hansen AG, Steffensen R, Jacobsen C, Jensenius JC, Thiel S (December 2009). "MAp44, a human protein associated with pattern recognition molecules of the complement system and regulating the lectin pathway of complement activation". Journal of Immunology. 183 (11): 7371–8. doi:10.4049/jimmunol.0902388. PMID 19917686.

External links