Fig. 6
From: Decoding the Virtual 2D Map of the Chloroplast Proteomes

Virtual 2D map of chloroplast proteomes. The X-axis represents the pI, and Y-axis represents the molecular mass of different chloroplast proteomes. The overall chloroplast proteome exhibits a bimodal distribution. Basic pI proteins are more abundant in chloroplast proteomes than nuclear proteomes; hence the modality shifts towards the basic pI range