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An internal ribosome entry site, abbreviated IRES, is an RNA element that allows for translation initiation in a cap-independent manner, as part of the greater process of protein synthesis. Initiation of eukaryotic translation nearly always occurs at and is dependent on the 5' cap of mRNA molecules, where the translation initiation complex ...
The c-sis internal ribosome entry site (IRES) is a RNA element found in the 5' UTR of the PDGF beta chain gene. The internal ribosome entry site contains three modules that can individually mediate internal ribosome entry. However, the full length sequence is required for maximal IRES activity.
The Tobamovirus internal ribosome entry site (IRES) is an element that allows cap and end-independent translation of mRNA in the host cell. [1] The IRES achieves this by mediating the internal initiation of translation by recruiting a ribosomal 43S pre-initiation complex directly to the initiation codon and eliminates the requirement for the eukaryotic initiation factor, eIF4F.
In molecular biology, the ODC internal ribosome entry site (IRES) is an RNA element present in the 5′ UTR of the mRNA encoding ornithine decarboxylase.It has been suggested that this IRES allows cap-independent translation of ornithine decarboxylase at the G2/M phase of the cell cycle, [1] however there is some doubt about this. [2]
This alternate mechanism relies on the direct binding of the 40S ribosomal subunit by the internal ribosome entry site (IRES) in the 5' UTR of HCV RNA. The HCV IRES adopts a complex structure, and may differ significantly from IRES elements identified in picornaviruses. A small number of eukaryotic mRNAs has been shown to be translated by ...
The c-myc internal ribosome entry site (IRES) is an RNA element present in the 5' UTR of the mRNA of C-myc and allows cap-independent translation. The mammalian c-myc gene is a proto-oncogene which is required for cell proliferation, transformation and death. c-myc mRNA has an alternative method of translation via internal ribosome entry where ribosomes are recruited to the IRES located in the ...
In molecular biology, the Nrf2 internal ribosome entry site (IRES) is an RNA element present in the 5′ UTR of the mRNA encoding the transcription factor Nrf2.It contains a stem-loop structure upstream of a ribosome binding site.
This family represents the internal ribosome entry site (IRES) of the Picornaviruses. [1] IRES elements allow cap and end-independent translation of mRNA in the host cell. The IRES achieves this by mediating the internal initiation of translation by recruiting a ribosomal 43S pre-initiation complex directly to the initiation codon and eliminates the requirement for the eukaryotic initiation ...