维持正常的视觉 维生素A对于视觉的重要性在于帮助视紫 (rhodopsin)的形成,因为视紫是视紫蛋白(Opsin)和 视网醛结合而成的蛋白质,视紫的分解与合成会形 成经兴奋,借由视经传到大脑,使得眼睛对光 才有所反应.
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bacterio-opsin 细菌视蛋白
L-opsin 蛋白
microbial opsin gene 微生物视蛋白基因
VA opsin 远古视蛋白
bacterio-opsin protein gene 细菌视蛋白基因
opsin kinase 视蛋白激酶
opsin expression 视蛋白表达
rod opsin promoter 视蛋白基因启动子
They have the ability of proliferation and may differentiate into retinal photoreceptor cells,having a potentiality of expressing Opsin. The photoreceptor precursor cells are increased significantly on the third day after birth,and then differentiate into mature retinal photoreceptor cells gradually.
结论新生小鼠视网膜存在视网膜光感受器前体细胞,该细胞具有分裂增殖能力及向视网膜光感受器细胞分化和表达视蛋白的潜能,并于生后3d明显增多,此后逐渐分化为成熟的光感受器细胞。
参考来源 - 新生小鼠视网膜光感受器前体细胞的体外培养及鉴定·2,447,543篇论文数据，部分数据来源于NoteExpress
N the protein that together with retinene makes up the purple visual pigment rhodopsin 视蛋白
In one type of squirrel monkey, the males lack a visual pigment called L-opsin.
在一种松鼠猴中，雄松鼠猴缺少一种叫做L视蛋白视觉色素。
He discovered that each species has completely lost at least one of the seven opsin genes, and some have even lost two.
他发现每个物种至少已经丧失了七视蛋白基因的一种，有的甚至失去了两种。
So the scientists got to wondering: what would happen if they gave a boy squirrel monkey the same opsin that girls have.
因此科学家们就考虑：如果给雄性猴子们注入这种雌性猴子拥有的视觉色素会发生什么呢？
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