出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/06/20 06:25 UTC 版)
Polyribosomes (or polysomes) also known as ergosomes are a cluster of ribosomes, bound to a mRNA molecule, first discovered and characterized by Jonathan Warner, Paul Knopf, and Alex Rich in 1963. Polyribosomes read one strand of mRNA simultaneously, helping to synthesize the same protein at different spots on the mRNA, mRNA being the "messenger" in the process of protein synthesis. They may appear as clusters, linear arrays, or rosettes in routine: this is aided by the fact that mRNA is able to be twisted into a circular formation, creating a cycle of rapid ribosome recycling, and utilization of ribosomes. The 5' 7-methylguanosine cap and 3' poly(A) tail present on eukaryotic mRNA aid in this process.
| ・polysome | |
| ・secondhand | |
| ・APTS | |
| ・virtual machine | |
| ・ciphering | |
| ・adaptability | |
| ・DMF | |
| ・hookups | |
| ・cwt . | |
| ・Boozing |