Reference: Hedges J, et al. (2006) Mapping the functional domains of yeast NMD3, the nuclear export adapter for the 60 S ribosomal subunit. J Biol Chem 281(48):36579-87

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Abstract


Nuclear export of the large ribosomal subunit requires the adapter protein Nmd3p to provide a leucine-rich nuclear export signal that is recognized by the export receptor Crm1. Nmd3p binds to the pre-60 S subunit in the nucleus. After export to the cytoplasm, the release of Nmd3p depends on the ribosomal protein Rpl10p and the GTPase Lsg1p. Here, we have carried out a mutational analysis of Nmd3 to better define the domains responsible for nucleocytoplasmic shuttling and ribosome binding. We show that mutations in two regions of Nmd3p affect 60 S binding, suggesting that its binding to the subunit is multivalent.

Reference Type
Journal Article | Research Support, N.I.H., Extramural
Authors
Hedges J, Chen YI, West M, Bussiere C, Johnson AW
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