retinylidenen.

Brit.

/rɛtᵻˈnɪlᵻdiːn/,

/rɛtᵻˈnʌɪlᵻdiːn/, U.S.

/ˌrɛtnˈɪlədin/

Origin: Formed within English, by compounding. Etymons: retinal n., -ylidene comb. form.

Etymology: < retin- (in retinal n.) + -ylidene comb. form. Compare slightly later retinyl n.

Biochemistry.

A radical or group derived from retinal and present in rhodopsin as a side chain linked by a double bond between the aldehyde group of retinal and an amino group of opsin. Usually attributive.

ΚΠ

1962 Proc. Royal Soc. B. 155 364 These compounds are compared with alkaline indicator yellow (retinal-opsin) and retinylidene methylamine.

1973 Nature 16 Nov. 166/2 The only action of light in vision is the photoisomerisation of the 11-cis retinylidene (derived from vitamin A aldehyde) prosthetic or chromophoric group of rhodopsin, from the 11-cis to the all-trans configuration.

1997 Biochemistry 36 7490 A major feature of bR [sc. bacteriorhodopsin] is the existence of an active site which includes a retinylidene Schiff base.

This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022).

单词	retinylidene
释义	retinylidenen. Brit. /rɛtᵻˈnɪlᵻdiːn/, /rɛtᵻˈnʌɪlᵻdiːn/, U.S. /ˌrɛtnˈɪlədin/ Origin: Formed within English, by compounding. Etymons: retinal n., -ylidene comb. form. Etymology: < retin- (in retinal n.) + -ylidene comb. form. Compare slightly later retinyl n. Biochemistry. A radical or group derived from retinal and present in rhodopsin as a side chain linked by a double bond between the aldehyde group of retinal and an amino group of opsin. Usually attributive. ΚΠ 1962 Proc. Royal Soc. B. 155 364 These compounds are compared with alkaline indicator yellow (retinal-opsin) and retinylidene methylamine. 1973 Nature 16 Nov. 166/2 The only action of light in vision is the photoisomerisation of the 11-cis retinylidene (derived from vitamin A aldehyde) prosthetic or chromophoric group of rhodopsin, from the 11-cis to the all-trans configuration. 1997 Biochemistry 36 7490 A major feature of bR [sc. bacteriorhodopsin] is the existence of an active site which includes a retinylidene Schiff base. This entry has been updated (OED Third Edition, March 2010; most recently modified version published online March 2022). < n.1962
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