نتایج جستجو برای: termination codons

تعداد نتایج: 34937  

Journal: :iranian journal of basic medical sciences 0
shirin shahbazi department of medical genetics, faculty of medical sciences, tarbiat modares university, tehran, iran

objective(s): haemostasis prevents blood loss following vascular injury. it depends on the unique concert of events involving platelets and specific blood proteins, known as coagulation factors. the clotting system requires precise regulation and coordinated reactions to maintain the integrity of the vasculature. clotting insufficiency mostly occurs due to genetically inherited coagulation fact...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2000
D V Freistroffer M Kwiatkowski R H Buckingham M Ehrenberg

The precision with which individual termination codons in mRNA are recognized by protein release factors (RFs) has been measured and compared with the decoding of sense codons by tRNA. An Escherichia coli system for protein synthesis in vitro with purified components was used to study the accuracy of termination by RF1 and RF2 in the presence or absence of RF3. The efficiency of factor-dependen...

Objective(s): Haemostasis prevents blood loss following vascular injury. It depends on the unique concert of events involving platelets and specific blood proteins, known as coagulation factors. The clotting system requires precise regulation and coordinated reactions to maintain the integrity of the vasculature. Clotting insufficiency mostly occurs due to genetically inherited coagulation fact...

Journal: :Plant & cell physiology 2007
Koichi Hori Yuichiro Watanabe

The nonsense-mediated mRNA decay (NMD) system is an RNA surveillance system that degrades mRNAs possessing premature translation termination codons (PTCs). Although NMD factors are well conserved in eukaryotes, it is speculated that the contexts of those termination codons that are subject to NMD are different depending on the organism. Context analysis of termination codons that are recognized...

Journal: :RNA 2001
V Ivanov A Beniaminov A Mikheyev E Minyat

Protein synthesis in ribosomes requires two kinds of tRNAs: initiation and elongation. The former initiates the process (formylmethionine tRNA in prokaryotes and special methionine tRNA in eukaryotes). The latter participates in the synthesis proper, recognizing the sense codons. Synthesis is also assisted by special proteins: initiation, elongation, and termination factors. The termination fac...

Journal: :Microbiological reviews 1988
G Eggertsson D Söll

The universal genetic code includes three codons which signal polypeptide chain termination. These termination or nonsense codons are UAG (amber), UAA (ochre), and UGA (opal). Usually, Escherichia coli and other procaryotic cells do not contain transfer ribonucleic acids (tRNAs) which recognize these codons. However, such tRNAs can be created by suppressor mutations in tRNA genes, generating tR...

Journal: :Proceedings of the National Academy of Sciences 1989

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