Anti-MASP2 Antibody Picoband®

Mannan-binding lectin serine protease 2 is a protein that in humans is encoded by the MASP2 gene. This gene is mapped to 1p36.22. This gene encodes a member of the peptidase S1 family of serine proteases. The encoded preproprotein is proteolytically processed to generate A and B chains that heterodimerize to form the mature protease. This protease cleaves complement components C2 and C4 in order to generate C3 convertase in the lectin pathway of the complement system. The encoded protease also plays a role in the coagulation cascade through cleavage of prothrombin to form thrombin. Myocardial infarction and acute stroke patients exhibit reduced serum concentrations of the encoded protein. Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed.

A synthetic peptide corresponding to a sequence at the C-terminus of human MASP2, which shares 88% and 76% amino acid (aa) sequence identity with mouse and rat MASP2, respectively.

Serum protease that plays an important role in the activation of the complement system via mannose-binding lectin. After activation by auto-catalytic cleavage it cleaves C2 and C4, leading to their activation and to the formation of C3 convertase.

1. Stover, C. M., Schwaeble, W. J., Lynch, N. J., Thiel, S., Speicher, M. R. Assignment of the gene encoding mannan-binding lectin-associated serine protease 2 (MASP2) to human chromosome 1p36.3-p36.2 by in situ hybridization and somatic cell hybrid analysis. Cytogenet. Cell Genet. 84: 148-149, 1999. 2. Stover, C. M., Thiel, S., Thelen, M., Lynch, N. J., Vorup-Jensen, T., Jensenius, J. C., Schwaeble, W. J. Two constituents of the initiation complex of the mannan-binding lectin activation pathway of complement are encoded by a single structural gene. J. Immun. 162: 3481-3490, 1999. 3. Takahashi, M., Endo, Y., Fujita, T., Matsushita, M. A truncated form of mannose-binding lectin-associated serine protease (MASP) -2 expressed by alternative polyadenylation is a component of the lectin complement pathway. Int. Immun. 11: 859-863, 1999.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.