KCNH1 and neoplasm: Blocking experiments with a twofold excess of unlabelled mAb62 as well as application of the free Cy5.5 fluorophore (Fig. 4b) resulted in significantly lower fluorescence intensities at all time points between 1 and 14 days after injection and therefore confirmed the binding specificity of mAb62-Cy5.5 to Kv10.1-expressing MDA-MB-435S tumours.