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Catalog # HM2297

MASP-1, Human, mAb 4H2A9


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The monoclonal antibody 4H2A9 reacts with the CCP1 domain, which is shared by MASP-1, MASP-3 and MAp-44. In total 5 MASP proteins have been identified (MASP-1, MASP-2, MASP-3, MAp19 and MAp44) which are encoded by 2 genes. The MASP-2 gene gives rise to MASP2 and MAp19 due to alternative splicing, whereas the MASP-1 gene encodes a primary transcript which can be spliced to three different mRNAs coding for MASP-1, MASP-3 and MAp44 having molecular weights of 88, 89 and 44kDa, respectively. On the protein level MASP-1 and MASP-2 are shown to be responsible for complement activation through proteolytic cleavage of C2 and C4, whereas MASP-3 has been suggested to inhibit the generation of the C3 convertase. So far the role of the truncated proteases MAp44 and Map19 remain unknown. The monoclonal antibody 4H2A9 is suitable for western blotting and immunoprecipitation experiments. Moreover, the antibody can be used in immunoassays detecting MASP-1, MASP-3 and/or MAp44.

Immuno assays

For immuno assay dilutions to be used depend on detection system applied. It is recommended that users test the reagent and determine their own optimal dilutions. The typical starting working dilution is 1:50.

Product type
Monoclonal antibodies
100 µg, 20 µg
0.2 ml (100 µg/ml) 0.2 µm filtered antibody solution in PBS, 0.1% bovine serum albumin and 0.02% sodium azide.
CCP-1 domain of MASP-1
Mouse IgG1
Storage and stability
Product should be stored at 4°C. Under recommended storage conditions, product is stable for at least one year. The exact expiry date is indicated on the label.
For research use only. Not for use in or on humans or animals or for diagnostics. It is the responsibility of the user to comply with all local/state and federal rules in the use of this product. Hycult Biotech is not responsible for any patent infringements that might result from the use or derivation of this product.
Infectious diseases
Protocol CoA-TDS
48 kb
Safety Data Sheet

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