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الفصل 9

ترجمة الحمض النووى الريبوزى الى بروتين

الترجمة
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it…
تنشيط الحمض النووى الريبوزى الناقل
Aminoacyl-tRNA synthetases are present in both eukaryotes and bacteria. Though eukaryotes have 20 different aminoacyl-tRNA synthetases to couple to…
الريبوزومات
Ribosomes translate genetic information encoded by messenger RNA (mRNA) into proteins. Both prokaryotic and eukaryotic cells have ribosomes. Cells…
تحسين دقة الترجمة
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a…
بداية الترجمة
Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors…
نهاية الترجمة
The large ribosomal subunit has several important structures essential to translation. These include the peptidyl transferase center (PTC) - which is…
تحلل حمض نووى ريبوزى معتمد على اجزاء لا معقولة
The Upf proteins that carry out nonsense-mediated decay (NMD) are found in all eukaryotic organisms, including humans. Each protein has an individual…
المرافقات الجزيئية (charepon) و طى البروتين
The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot…
البروتوسوم
Eukaryotic cells can degrade proteins through several pathways. One of the most important amongst these is the ubiquitin-proteasome pathway. It helps…
تحلل بروتينى منظم
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a…
البروتينات : من الجينات الى التحلل
Within a biological system, the DNA encodes the RNA, and the nucleotide sequence in the RNA further defines the amino acid sequence in the protein.…
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