<unk>  (CL-43) is a<unk>  protein that acts as an antigen recognition protein. When an agent, zymosan, was injected into the tunicate Styela plicata (causing inflammation), secretion of this<unk>  was tripled within 96 hours.
Collectin of 43 kDa
Glycoprotein IX
M protein 
Polysulfated glycosaminoglycan
Type V collagen
Tumor-associated glycoprotein 72
Peripheral myelin protein 22
Collagen, type VI, alpha 2