Sandbox Reserved 895: Difference between revisions
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= '''1. Introduction''' = | = '''1. Introduction''' = | ||
In humans the vertebrate vision is maintained by a chemical process known as the retinoid (visual) cycle. This cycle is a complex enzymatic pathway that operates within the retina to regenerate a key visual chromophore known as 11-''cis''-retinal. The enzyme responsible for regenerating the key visual chromophore, 11-''cis''-retinal is a microsomal membrane protein retinal pigment epithelium 65 also known as RPE65. The RPE65 enzyme catalyzes the chemical conversion of all-''trans''-retinyl ester (or all-''trans''-retinyl palmityl ester) to 11-''cis''-retinol within the human retinal pigment epithelium (hRPE). | In humans the vertebrate vision is maintained by a chemical process known as the retinoid (visual) cycle. This cycle is a complex enzymatic pathway that operates within the retina to regenerate a key visual chromophore known as 11-''cis''-retinal. The enzyme responsible for regenerating the key visual chromophore, 11-''cis''-retinal is a microsomal membrane protein retinal pigment epithelium 65 also known as RPE65. The RPE65 enzyme catalyzes the chemical conversion of all-''trans''-retinyl ester (or all-''trans''-retinyl palmityl ester) to 11-''cis''-retinol within the human retinal pigment epithelium (hRPE). <ref>https://doi.org/10.1073/pnas.0906600106</ref> | ||
RPE65 is located within the hRPE cells located in the back of the eye. The human retinal pigment epithelium is responsible for regulating the nourishment of the retina. Since the retinoid (visual) cycle requires the incorporation of light into catalyzing chemical reactions, hRPE cells are light sensitive. | RPE65 is located within the hRPE cells located in the back of the eye. The human retinal pigment epithelium is responsible for regulating the nourishment of the retina. Since the retinoid (visual) cycle requires the incorporation of light into catalyzing chemical reactions, hRPE cells are light sensitive. | ||