GPCR IN VISION SYSTEM | GPCR (Part-5) | CSIR NET | ROD CELL SIGNALING

Описание: TOPIC-GPCR IN VISION SYSTEM | GPCR (Part-5) | CSIR NET | ROD CELL SIGNALING

There are two types of photoreceptors involved in sight: rods and cones. Rods work at very low levels of light. We use these for night vision because only a few bits of light (photons) can activate a rod. Rods don't help with color vision, which is why at night, we see everything in a gray scale.Cones require a lot more light and they are used to see color. We have three types of cones: blue, green, and red. 
Vision depend on G-protein coupled receptors that regulates cyclic nucleotide gated ion channel.
Rhodopsin-integral membrane proteins present in rod cells. Rhodopsin has light absorbing pigment (chromophore) 11-cis-retinal is covalently attached to opsin, a protein component of rhodopsin.
Transducin- heterotrimeric GTP Binding protein.it can bind either GDP or GTP.
cGMP phosphodiesterase(PDE)- Enzyme that convert cyclic GMP to 5’-GMP.

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ABOUT CHANNEL: This channel will have the syllabus wise lectures Video for CSIR-NET-Lifescience/GATE-Lifescience/BARC/ICMR-JRF/ICAR.
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