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. 1996 Dec 10;93(25):14243–14248. doi: 10.1073/pnas.93.25.14243

Figure 4.

Figure 4

Internal symmetry in γB-crystallin (45, 46). The two symmetry-related Greek-key motifs within a domain are shown in two different colors and are related by approximate 2-fold axes (arrows). In a similar manner, the two domains are related by an approximate 2-fold axis.