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. 2018 Jun 27;9:1406. doi: 10.3389/fimmu.2018.01406

Figure 2.

Figure 2

Size-exclusion chromatography (SEC) of mannan-binding lectin (MBL)-deficient and MBL-sufficient serum. SEC of MBL-deficient serum (A,C) or MBL-sufficient serum (B,D). Serum was fractionated on a Superdex™ 200 10/300 GL column (A,C). Fractions were tested for the presence of MBL, or MBL–MBL-associated serine protease (MASP)-1/3, MBL–MASP-2 complexes on mannan-coated plates and compared with a pool of normal human sera (NHS). (B,D) Mannan-coated plates were pre-incubated with fixed amount of recombinant MBL, and followed by the different fractions of MBL-deficient or MBL-sufficient serum, and the formation of new MBL–MASP-1/3 or MBL–MASP-2 complexes was detected and compared with a pool of NHS.