Figure 4From: Identification and bioinformatic analysis of the membrane proteins of synechocystis sp. PCC 6803 Functional groups of the identified membrane proteins. The pie diagram shows that the 128 membrane proteins in additional file 1 are grouped into 14 major categories by their functions assigned in Cyanobase. The total number of proteins in each group and its ratio (percent) to the total number of identified proteins are indicted in the parenthesis.Back to article page