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Signal recognition particle, MinD and BioD (SIMIBI)-type nucleoside triphosphate-binding proteins are an ancient subfamily of nucleotide-binding proteins that serve in a wide range of cellular processes. Notably, this class comprises dimeric ATPases as well as GTPases (SIMIBI 'twins') and a subset of SIMIBI-type proteins, including SRP GTPases, MinD-type ATPases and the Get3 ATPase, is essential to protein targeting and localization. Here, we define common mechanistic principles and differences for these SIMIBI proteins.

Citation

Gert Bange, Irmgard Sinning. SIMIBI twins in protein targeting and localization. Nature structural & molecular biology. 2013 Jul;20(7):776-80

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PMID: 23823071

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