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Date: 11-8-2018
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Date: 18-8-2019
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Date: 16-1-2022
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We now know in rhodopsin, there is protein and retinal. The large protein is called opsin. Opsin does not absorb visible light, but when it bonded with 11-cis-retinal by its lysine side-chain to from rhodopsin, the new molecule has a very broad absorption band in the visible region of the spectrum.[2][3]
The reaction above shows Lysine side-chain from the opsin react with 11-cis-retinal when stimulated. By removing the oxygen atom form the retinal and two hydrogen atom form the free amino group of the lysine, the linkage show on the picture above is formed, and it is called Schiff base.
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للعاملين في الليل.. حيلة صحية تجنبكم خطر هذا النوع من العمل
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"ناسا" تحتفي برائد الفضاء السوفياتي يوري غاغارين
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ملاكات العتبة العباسية المقدسة تُنهي أعمال غسل حرم مرقد أبي الفضل العباس (عليه السلام) وفرشه
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