Photochemical reactions of 13-demethyl visual pigment analogues at low temperatures.

@article{Shichida1981PhotochemicalRO,
  title={Photochemical reactions of 13-demethyl visual pigment analogues at low temperatures.},
  author={Yoshinori Shichida and Allen Kropf and T{\^o}ru Yoshizawa},
  journal={Biochemistry},
  year={1981},
  volume={20 7},
  pages={1962-8}
}
The photobleaching reaction of 13-demethylisorhodopsin (hereafter designated as 9-cis- 13-dm-rhodopsin), which was synthesized from 9-cis- 13-demethylretinal and cattle opsin, was investigated by low-temperature spectrophotometry in order to elucidate the role of the 13-methyl group of retinal in photobleaching. When 9-cis- 13-dm-rhodopsin was irradiated at-190 degrees C, batho-13-dm-rhodopsin was produced. Its absorption maximum lay at 532 nm, 11 nm shorter than that of cattle bathorhodopsin… CONTINUE READING