FabRICATOR® Xtra
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Lyophilized enzyme for below hinge digestion of hinge-mutated IgG, including LALA

FabRICATOR Xtra LALA is an IgG-specific protease that digests antibodies which have been engineered to contain mutated hinges, including the LALA mutation. It digests below the hinge, generating F(ab’)2 and Fc fragments.
FabRICATOR Xtra LALA Lyophilized is available as a lyophilized powder in 2000 unit vials for digestion of up to 2 mg hinge-mutated IgG.
Lyophilized enzyme for below hinge digestion of up to 2 mg of hinge-mutated IgG

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One unit FabRICATOR Xtra LALA Lyophilized digests ≥ 95% of 1 µg human IgG1-LALA (L234A, L235A) when incubated in 10 mM sodium phosphate, 137 mM NaCl, 2.7 mM KCl, pH 7.4 at 37°C for 1 hour.
FabRICATOR Xtra LALA Lyophilized is reconstituted by addition of water. No preservatives added. After reconstitution, the enzyme is stable for 1 month at +4-8°C. The product is shipped cold and should be stored at -20°C upon arrival.
Efficient digestion of hinge-mutated antibodies, generating fragments for comprehensive subunit LC-MS analysis of engineered IgG formats
Yes, of the formats we have specifically tested, hIgG1-LALAPG (L234A, L235A, P329G), hIgG1-STR (L234S, L235T, G236R) and hIgG1-L234F, L235E, D265A could not be digested to satisfactory levels using FabRICATOR Xtra LALA. Please refer to footnote 4 in the instructions for use to determine whether your antibody is likely to be suitable for FabRICATOR Xtra LALA digestion.
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