Immobilized Ficin (Agarose Resin) (Glyco-066CL)

Immobilized Ficin consists of a sulfhydryl-specific protease (ficin) that has been immobilized onto beaded agarose resin to enable controlled antibody fragmentation, especially of mouse IgG1.      

Product Size
5 mL
Contents & storage
Content: 5 mL of settled resin.

Store in original container protected from direct sunlight in a dry, cool and well-ventilated area, between the following temperatures: 2 to 8°C.
Ficin, which is similar to papain, is a nonspecific, sulfhydryl protease isolated from fig latex. The molecular weight of Ficin is approximately 25,000 and it is effective at pH 4-9.5 with an optimum pH of 6.5. When IgG molecules are incubated with ficin in the presence of cysteine, one or more peptide bonds in the hinge region are split, producing either Fab fragments or F(ab')2 fragments. Mouse IgG1 is notably difficult to digest into functional Fab or F(ab')2 fragments using papain or pepsin, however, yields and immunoreactivity are better when digesting mouse IgG1 with ficin. Immobilized Ficin was specifically designed for cleavage of mouse IgG1 into or Fab or F(ab')2 fragments, and is advantageous because it virtually eliminates autolysis, eliminates contamination of a sample with the protease and allows control of the digestion by removing the ficin or controlling the flow of sample over an immobilized ficin column.

Immobilized ficin is more stable against heat-induced denaturation than the free enzyme, resulting in longer maintenance of activity. The Fab and F(ab')2 Preparation Kit contains immobilized ficin, other necessary reagents and an optimized protocol for mouse IgG1 digestion. Ficin will generate mouse IgG1 F(ab')2 and Fab fragments in the presence of 1 mM cysteine and 10 mM cysteine, respectively. Fragment generation from other species and isotypes is also possible through modification of the cysteine concentration and other digestion parameters.

For lab research use only, not for diagnostic, therapeutic or any in vivo human use.

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