Venn diagram for a) upregulated and b) downregulated groups. The diagram shows the number of up and down regulated proteins in the axolotl proteomics data at 1, 4 and 7 day post amputation. 1d+ refers to the upregulated proteins and 1d- refers to the downregulated proteins at day 1. Other time points can be similarly interpreted. The value under each time point shows the total number of proteins up/down regulated at that time point.