CTIF is involved in mRNA export in human cells

Rufener, Simone (24 January 2014). CTIF is involved in mRNA export in human cells (Unpublished). In: Swiss RNA Workshop 2014. Bern, Schweiz. 24.01.2014.

In eukaryotic cells translation initiation of messenger RNA (mRNA) transcripts can be initiated either by the cap-binding complex (CBC) consisting of CBP80 and CBP20, or by the eukaryotic translation initiation factor (eIF) 4E. Together with eIF4G and eIF4A, eIF4E forms the eIF4F-complex, which mediates initiation of the bulk of cellular translation. Analogous to eIF4G, the CBP80/20-dependent translation initiation factor (CTIF) has been reported to be part of the CBC-dependent translation initiation complex. CTIF consists of a N-terminal CBP80-binding domain and a conserved C-terminal MIF4G domain. This MIF4G domain has been shown to mediate the interaction between CTIF and different factors such as eIF3g and the stem-loop binding protein (SLBP). Here we show data indicating that CTIF, besides its function in translation initiation, is involved in mRNA translocation from the nucleus to the cytoplasm, possibly through a direct interaction with the nuclear export factor NFX1/TAP. Taken together our results suggest that CTIF can function as a platform that interacts with proteins involved in different steps of mRNA metabolism.

Item Type:

Conference or Workshop Item (Poster)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

Graduate School:

Graduate School for Cellular and Biomedical Sciences (GCB)

UniBE Contributor:

Rufener, Simone

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

Language:

English

Submitter:

Christina Schüpbach

Date Deposited:

23 Dec 2014 14:22

Last Modified:

15 Jan 2016 11:51

URI:

https://boris.unibe.ch/id/eprint/61331

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