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单词 opsin
释义

Definition of opsin in English:

opsin

noun ˈɒpsɪnˈäpsən
mass nounBiochemistry
  • A protein which forms part of the visual pigment rhodopsin and is released by the action of light.

    Example sentencesExamples
    • Visual pigments are composed of a light-absorbing chromophore that is bound to the protein opsin.
    • Every photopigment consists of a derivative of vitamin A linked to a protein molecule called an opsin.
    • Vitamin A then combines with a protein opsin to form rhodopsin.
    • Rhodopsin consists of a protein called opsin bonded to a pigment called retinal.
    • The transport of opsin to the outer segment of photoreceptor cells seems especially critical for viability of these cells.

Origin

1950s: shortening of rhodopsin.

 
 

Definition of opsin in US English:

opsin

nounˈäpsən
Biochemistry
  • A protein which forms part of the visual pigment rhodopsin and is released by the action of light.

    Example sentencesExamples
    • Visual pigments are composed of a light-absorbing chromophore that is bound to the protein opsin.
    • The transport of opsin to the outer segment of photoreceptor cells seems especially critical for viability of these cells.
    • Vitamin A then combines with a protein opsin to form rhodopsin.
    • Every photopigment consists of a derivative of vitamin A linked to a protein molecule called an opsin.
    • Rhodopsin consists of a protein called opsin bonded to a pigment called retinal.

Origin

1950s: shortening of rhodopsin.

 
 
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更新时间:2024/9/21 2:44:33