L E Brennan, J Nakagawa, D Egger, K Bienz, C Moroni
Institute for Medical Microbiology, University of Basel, Petersplatz 10, CH-4003, Basel, Switzerland.
Gene 1999 Mar 4AU-rich elements function as instability elements which direct rapid mRNA degradation. AUH protein exhibits an AU-specific RNA-binding property and an intrinsic enoyl-CoA hydratase activity and may therefore function to link mRNA decay to metabolic processes (. Proc. Natl. Acad. Sci. USA 92, 2051-2055). The sequence encoding the murine protein, muAUH, was established by cloning, and the corresponding polypeptide predicted to have a molecular mass of 37kDa. As shown for the human protein, muAUH is expressed in a 32kDa form and there is 94% homology between the two species. Recombinant muAUH was shown to be an RNA-binding enoyl-CoA hydratase. All murine cells studied contained a single AUH transcript of approx. 1.7kb and an investigation of tissue-specific expression revealed highest levels in kidney, skeletal muscle, heart, liver and spleen. It was further determined, using immunoelectron microscopy, that AUH is located in the mitochondria of mouse cells.
L E Brennan, J Nakagawa, D Egger, K Bienz, C Moroni. Characterisation and mitochondrial localisation of AUH, an AU-specific RNA-binding enoyl-CoA hydratase. Gene. 1999 Mar 4;228(1-2):85-91
PMID: 10072761
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