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. 2010 Apr;21(1):9–17.

FIGURE 4.

FIGURE 4

Functional analysis of purified IGF1R and IR cytoplasmic domains. (A) The accessibility of the biotin for immobilization was assessed by binding of untagged and biotinylated AviTag-IGF1R to neutravidin-coated CM5 chips on a Biacore T100. (B) The enzyme activity in μmoles/min/mg protein was determined as described.