Produced from sera of rabbits pre-immunized with highly pure (>98%) recombinant hIL-21. Human IL-21 specific antibody was purified by affinity chromatography and then biotinylated.
Application Notes: ELISA:Sandwich:To detect hIL-21 by sandwich ELISA (using 100 µL/well antibody solution) a concentration of 0.25 - 1.0 µg/mL of this antibody is required. This biotinylated polyclonal antibody, in conjunction with our polyclonal Anti-Human IL-21 as a capture antibody, allows the detection of at least 0.2 - 0.4 ng/well of recombinant hIL-21. Western Blot:To detect hIL-21 by Western Blot analysis this antibody can be used at a concentration of 0.1 - 0.2 µg/mL. Used in conjunction with compatible secondary reagents the detection limit for recombinant hIL-21 is 1.5 - 3.0 ng/lane, under either reducing or non-reducing conditions
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