GPCRS span the cell membrane and characteristically have 7 transmembrane segments (see structure of ß-adrenergic receptor or rhodopsin). The extracellular portion has the binding site for the chemical messenger - there are very many genes for the myriad of receptors for differenc chemicals (5% or more of the genome
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What the hell does this even mean?
Why would you torture your eyes with studying, when you have the perfect excuse not to?
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én is tudom, h valami nincs rendben
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