| 释义 |
retinal
ret·i·nal 1 R0193450 (rĕt′n-ăl′)adj. Of or relating to the retina of the eye.
ret·i·nal 2 R0193450 (rĕt′n-ăl′, -ôl′)n. Either of two chromophores that are aldehydes of vitamin A1 and vitamin A2 and that bind covalently with an opsin protein to form rhodopsin or porphyropsin. Also called retinene.
[retin(ol) + -al.]ret•i•nal1 (ˈrɛt n əl)
adj. of or pertaining to the retina of the eye. ret•i•nal2 (ˈrɛt nˌæl, -ˌɔl)
n. an orange visual pigment, C20H28O, the active component of rhodopsin and iodopsin, that is liberated upon the absorption of light in the vision cycle. [1940–45; retin (a) + -al3] Thesaurus| Noun | 1. | retinal - either of two yellow to red retinal pigments formed from rhodopsin by the action of lightretinenepigment - dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)retinal purple, rhodopsin, visual purple - a red photopigment in the retinal rods of vertebrates; dissociates into retinene by light | | Adj. | 1. | retinal - in or relating to the retina of the eye; "retinal cells" |
Translations
retinal
retinal[′ret·ən·əl] (biochemistry) A carotenoid, produced as an intermediate in the bleaching of rhodopsin and decomposition to vitamin A. Also known as vitamin A aldehyde. retinal
retinal [ret´ĭ-nal] 1. pertaining to the retina.2. the aldehyde of retinol, having vitamin A activity. One isomer (11-cis-retinal) combines with opsin in the retinal rods (scotopsin) to form rhodopsin (visual purple); another, all-trans-retinal, or visual yellow, results from the bleaching of rhodopsin by light, in which the 11-cis form is converted to the all-trans form. Retinal also combines with opsins in the retinal cones to form the three pigments responsible for color vision.ret·i·nal (ret'i-năl), 1. Relating to the retina. 2. Retinaldehyde, most commonly referring to the all-trans form; participates in the visual process; 11-cis-retinal binds with an opsin to form iodopsin or rhodopsin; light causes the formation of all-trans-retinal, which dissociates from the protein. retinal 1 (rĕt′n-ăl′)adj. Of or relating to the retina of the eye.
retinal 2 (rĕt′n-ăl′, -ôl′)n. Either of two chromophores that are aldehydes of vitamin A1 and vitamin A2 and that bind covalently with an opsin protein to form rhodopsin or porphyropsin. Also called retinene.retinal adjective Referring to the retina noun 11-cis-retinal, vitamin A aldehyde A retinal pigment that absorbs visible light at 400-600 nm, resulting in an isomeric transition of the 11-cis-retinal moiety to a trans-retinal conformation causing a G protein-mediated depolarization eventret·i·nal (ret'i-năl) 1. Relating to the retina. 2. Retinaldehyde; most commonly referring to the all-trans form. retinal The aldehyde found in visual pigments, such as visual purple. Also known as retinaldehyde.retinal 1. Pertaining to the retina. 2. See rhodopsin.retinal
Related to retinal: Retinal Hemorrhage, retinal detachment, retinal pigment, Retinal diseasesSynonyms for retinalnoun either of two yellow to red retinal pigments formed from rhodopsin by the action of lightSynonymsRelated Words- pigment
- retinal purple
- rhodopsin
- visual purple
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