Hamming distance matrix visualizing the number of genes differing between any 2 samples.

The color scale ranges from black, indicating no difference, to white, indicating a 2828-gene difference. The ordering is as follows (from the lower left corner up and right): CD44-stimulated (indicated as +CD44) sample no. 1 at 6, 24, and 72 hours; CD44-stimulated sample no. 2, at 6, 24, and 72 hours; sample no. 3 at 6, 24, and 72 hours; and sample no. 4 at 6, 24, and 72 hours. In a corresponding series is the control receiving no CD44 stimuli (indicated -CD44).