Figure 1From: The evolution of vertebrate tetraspanins: gene loss, retention, and massive positive selection after whole genome duplicationsThe functions and structures of vertebrate tetraspanins. (A) Schematic of some tetraspanin functions. (B) The tetraspanin overall structure. C1~C8 indicate the conserved cysteines; 100% conserved cysteines are labeled; 'CCG' is the so-called tetraspanin signature. (C) The LEL structure of tetraspanins.Back to article page