Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation

Stable Identifier
R-HSA-156808
Type
Reaction [binding]
Species
Homo sapiens
Compartment
cytosol
ReviewStatus
5/5
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Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation
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The precise order of events leading to the circularization of poly (A) mRNA during translation initiation is unknown. Here the association of PABP with the poly (A) mRNA and the association of PABP with eIF4F are represented as occuring simultaneously after formation of the initiation complex. However, it is also possible that these interactions occur during the formation of the translation initiation complex. The binding of eIF4F to the cap and binding of PABP to the poly (A) tail, for example, may occur at the same time. In fact, the eIF4G-PABP interaction helps eIF4F to bind tighter to the cap (Borman et al. 2000.) In addition, eIF4B and eIF4H bind more transiently to the mRNA and may not be part of an initial complex in which PABP has not yet touched eIF4G.
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Orthologous Events
Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation (Bos taurus)
Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation (Caenorhabditis elegans)
Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation (Canis familiaris)
Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation (Gallus gallus)
Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation (Mus musculus)
Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation (Plasmodium falciparum)
Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation (Rattus norvegicus)
Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation (Saccharomyces cerevisiae)
Formation of translation initiation complexes yielding circularized Ceruloplasmin mRNA in a 'closed-loop' conformation (Sus scrofa)
Authored
Matthews, L  (2004-12-13)
Created
Gebauer, F  (2004-12-20)
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