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Curr Opin Cell Biol. 1997 Jun;9(3):343-9.

Mammalian RNA-dependent deaminases and edited mRNAs.

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Department of Molecular Neurobiology, Max-Planck Institute for Medical Research, Jahnstrasse 29, 69120, Heidelberg, Germany.


The past year has witnessed major progress in the field of mammalian nuclear RNA editing. Two new sequence-related RNA-dependent adenosine deaminases, distantly related to the previously characterized double-stranded RNA adenosine deaminase DRADA/dsRAD, have been molecularly characterized. One of these deaminases edits in vitro with precision for the molecular determinant that controls the Ca2+ permeability of fast synaptic glutamate-gated cation channels. This deaminase, like DRADA, is expressed in many tissues and the search is now on for more substrates of these RNA-editing enzymes. Moreover, the physiological role of the apolipoprotein B RNA editing enzyme APOBEC-1 has been investigated in genetically manipulated mice.

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