opsin

Examples

• All

• When light strikes, the chromophore absorbs a photon and suddenly causes the opsin to change shape.

  Blog text (15)

• Mutations to the genes that encode the opsin proteins can, therefore, alter the wavelengths that an animal can see.

  Academic text (2009)

• Visual pigments have two components: a chromophore and an opsin.

  Academic text (2009)

• If the opsin remains the same but the chromophore changes, the pigment will alter its sensitivity to light.

  Academic text (2009)

• Furthermore, close relatives of the species do have functional violet opsins.

  Academic text (2006)

• Fossilization of the opsin gene for violet-sensitive vision is depicted in the diagram.

  Academic text (2006)

• Sometime during coelacanth evolution, the green-red opsin gene was lost.

  Academic text (2006)

• Moreover, all the relatives of the owl monkey that are active by daylight have an intact violet opsin gene.

  Academic text (2006)

• The chromophore, a light-absorbing molecule, sits in a pocket inside the opsin, a protein.

  Academic text (2009)

• Nevertheless, modern dolphins still carry the disrupted DNA sequence—a fossil opsin gene—for violet vision in their genome (bottom row).

  Academic text (2006)

Surface Forms

Morphology

Etymology