Collectin of 43 kDa
Encyclopedia
Collectin of 43 kDa is a collectin
Collectin
Collectins are soluble pattern recognition receptors belonging to the superfamily of collagen containing C-type lectins.Eight collectins have been identified including mannan-binding lectin , surfactant protein A , surfactant protein D , collectin liver 1 , collectin placenta 1 , conglutinin,...

 protein that acts as an antigen recognition protein. When an agent, zymosan
Zymosan
Zymosan is a glucan with repeating glucose units connected by β-1,3-glycosidic linkages. It binds to TLR 2.Zymosan is prepared from yeast cell wall and consists of protein-carbohydrate complexes. It is used to induce experimental sterile inflammation...

, was injected into the tunicate
Tunicate
Tunicates, also known as urochordates, are members of the subphylum Tunicata, previously known as Urochordata, a group of underwater saclike filter feeders with incurrent and excurrent siphons that is classified within the phylum Chordata. While most tunicates live on the ocean floor, others such...

Styela plicata (causing inflammation), secretion of this collectin was tripled within 96 hours.
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