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Figure 3. Competitive receptor test of selected CKs with 2 nM [3HtZ] for binding into the Arabidopsis CK receptor AHK4 using a bacterial competition assay.15,16 The assay was done with different concentrations of the CKs, tZ served as a positive and adenine (Ade) as a negative control for ligand binding. The values are expressed as means ± SD of three independent replicates.
