Figure 1
From: In-depth proteomic analysis of shell matrix proteins of Pinctada fucata

(a) Optical image shows the prismatic and nacreous layer of a typical shell (red box is examined by SEM), (b) SEM shows the shell surfaces of Pinctada fucata: the prismatic (b) and nacreous layer (c,d) SDS-PAGE of the four groups of extracted proteins (ESM and EISM are EDTA-soluble and EDTA-insoluble extracts, respectively; P and N mean the prismatic and nacreous layer, respectively).