Quaternary Structure and Lipid Affinity of PLC Figure 1. Homology analysis of PI-PLC isozymes from different organisms. Sequences of Phospholipase C from different organisms including Chlamydomonas reinhatdtii (CrPLC), Drosophila melanogaster (DmPLC), Arabidopsis thaliana (AtPLC), Homo sapiens (HsPLC), and Mus musculus (MmPLC) were compared. Identical amino acid residues are represented in white with black background and residues with greater than PLoS ONE | www.plosone.org 2 June 2012 | Volume 7 | Issue 6 | e39258