WebbBecause proteins are coded by genes, the term “gene expression” refers to protein synthesis (i.e., making proteins), including the regulation of that synthesis. There are two main processes that must occur to synthesize proteins: transcription and translation.

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Webb15 maj 2002 · The content of cytoplasmic ferritin is regulated by the translation of ferritin H and L mRNAs in response to an intracellular pool of “chelatable” or “labile” iron. 45, 46 Thus, when iron levels are low, ferritin synthesis is decreased; conversely, when iron levels are high, ferritin synthesis increases. WebbConversely, down-regulation is a process resulting in decreased gene and corresponding protein expression. Up-regulation occurs, for example, when a cell is deficient in some kind of receptor. In this case, more receptor … hourglass figure women in dresses

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WebbGene expression involves transcription of genes into mRNAs followed by translation of mRNAs into proteins. Protein concentrations are in turn determined by the balance between protein synthesis and dilution ( Fig. 1A and fig. S1) for exponentially growing bacteria in which protein degradation is negligible ( 1, 2 ). Webb1 okt. 2004 · Translational control is widely used to regulate gene expression. This mode of regulation is especially relevant in situations where transcription is silent or when local control over protein ... Webb16 feb. 2024 · The majority of mitochondrial proteins are encoded in the nucleus, but mitochondria have an independent protein synthesis machinery that is required for the biogenesis of the respiratory chain. link philips hue to tv