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The de novo protein synthesis theory of memory formation is a hypothesis about the formation of the physical correlates of memory in the brain. It is widely accepted that the physiological correlates for memories are stored at the synapse between various neurons .
Protein synthesis plays an important role in the formation of new memories. Studies have shown that protein synthesis inhibitors administered after learning, weaken memory, suggesting that protein synthesis is required for memory consolidation. Additionally, reports have suggested that the effects of protein synthesis inhibitors also inhibit ...
In analogous experiments with other synthetic RNAs, they found that poly-C directed synthesis of polyproline. Nirenberg recounts that the labs of Severo Ochoa and James Watson had earlier done similar experiments with poly-A, but failed to detect protein synthesis because polylysine (unlike most proteins) is soluble in trichloroacetic acid.
By 2015 it had become clear that long-term memory requires gene transcription activation and de novo protein synthesis. [38] Long-term memory formation depends on both the activation of memory promoting genes and the inhibition of memory suppressor genes, and DNA methylation/DNA demethylation was found to be a major mechanism for achieving this ...
Specifically, it is unclear whether protein synthesis takes place in the postsynaptic cell body or in its dendrites. [39] Despite having observed ribosomes (the major components of the protein synthesis machinery) in dendrites as early as the 1960s, prevailing wisdom was that the cell body was the predominant site of protein synthesis in ...
Protein synthesis is a very similar process for both prokaryotes and eukaryotes but there are some distinct differences. [1] Protein synthesis can be divided broadly into two phases: transcription and translation. During transcription, a section of DNA encoding a protein, known as a gene, is converted into a molecule called messenger RNA (mRNA).
Unlike Gamow, he realised the possible importance of RNA as an intermediate stage in protein synthesis. [3] He initially imagined that DNA was first converted by chemical reaction to RNA, but then changed his view to DNA as a template for RNA synthesis. [22] This latter model, which he called "not ugly" was starting to become more convincing.
The protein encoded by this gene phosphorylates the alpha subunit of eukaryotic translation-initiation factor 2 , leading to its inactivation, and thus to a rapid reduction of translational initiation and repression of global protein synthesis. It is a type I membrane protein located in the endoplasmic reticulum (ER), where it is induced by ER ...