| 释义 |
opsin Biochem.|ˈɒpsɪn|
[Back-formation from rhodopsin s.v. rhodo-.]
A protein liberated from rhodopsin by the action of light.
1951G. Wald in Science 15 Mar. 287/2 Rhodopsin and porphyropsin are carotenoid-proteins—proteins bearing carotenoid prosthenic groups to which they owe their color and sensitivity to light... The protein probably varies from one animal to another; it may be called opsin, and named for the animal of origin. 1956Nature 28 Jan. 174/1 When opsin is in excess.., the synthesis of rhodopsin removes neo-b retinene almost entirely from solution. 1970R. W. McGilvery Biochem. xxvi. 644 The interaction of the conjugated hydrocarbon chain with the opsins creates the particular absorption spectrum of the visual pigments, and therefore the spectral sensitivity of the eye. |