Fig. 2.

Analysis of S. pombe protein abundance clusters and their associated physicochemical and functional properties. Protein abundances for proliferating cells (Experiment 2) were assessed using emPAI value calculation. A, all identified proteins were clustered into five major abundance categories based on protein density distribution against log emPAI value. B, number of proteins of the different abundance clusters. Bias analysis of protein length (C), pI (D), and GO-slim (E) for the high and low abundant protein clusters. *, frequency = (number of detected proteins associated with corresponding GO term within the cluster/number of total proteins in the cluster)/(number of total detected proteins associated with corresponding GO term/number of total detected proteins).