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. 2003 Nov 25;100(Suppl 2):14537–14542. doi: 10.1073/pnas.2335847100

Fig. 4.

Fig. 4.

Locations and phases of introns in the Or and Gr genes. The intron locations (above the lines) and phases (below the lines) are shown separately for the two families, relative to a scale of the average receptor size in amino acids (determined by excluding the large insertions in some of the receptors). The ancestral phase-0 C-terminal introns 1 and 3 are shared between the two families.