Fig. 3: Opsin protein modeling reveals the proximity of functional domains and sites under positive selection. | Communications Biology

Fig. 3: Opsin protein modeling reveals the proximity of functional domains and sites under positive selection.

From: Genome assembly of a nocturnal butterfly (Macrosoma leucophasiata) reveals convergent adaptation of visual genes

Fig. 3

A Blue (BRh) opsin Protter model of M. leucophasiata showing predicted transmembrane helices, sites under selection (brown circles) sites surrounding the retinal binding region (RBR) (blue circles), and sites under selection and close to RBR (red circles). B A 3D protein model created using the jumping spider opsin (6i9k) with the position of the retinal inferred by aligning it to the spider template. Sites inferred to be important to spectral tuning are close to the retinal binding region, see amino acids and approximate distance: MET79 (3 Å), CYS 297 (5.5 Å), Cys 195 (3.5 Å), and Cys 202 (4.0 Å).

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