BIOL 2P03 Lecture Notes - Lecture 7: Tyrosine Kinase, Transmembrane Domain, Screencast

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Week 7 screencast signaling pathways that control gene expression. Produces meaningful changes in cell function or morphology via: Refers to the utilization of dna to synthesize. Typically dna is used to synthesize mrna which is then used to produce a polypeptide or protein. The complement of proteins expressed by a particular cell determines its function. There are non-protein gene products that also exist trna snrna. Can occur at several steps of the gene expression pathway. Binds to the promoter to initiate transcription. Transcription factors can either activate or repress transcription. Bind to specific dna sequences and affect ability of rna polymerase to bind to promoter. Transcription of a single eukaryotic gene is often regulated by multiple transcription factors. Primary mechanisms for regulating gene expression: receptor-associated kinases. Receptor tyrosine kinases is tightly bound to a kinase. Receptor activation leads to activation of kinase which then phosphorylates target proteins. Plasma membrane receptors with intrinsic tyrosine kinase activity.

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