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J Mol Biol. 2000 Feb 4;295(5):1103-12.

RING domains: master builders of molecular scaffolds?

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Department of Physiology & Biophysics, Mt. Sinai School of Medicine, New York, NY, 10029, USA.

Erratum in

  • J Mol Biol 2000 Apr 7;297(4):1027.


Intense interest in the RING domain has arisen because of its widespread occurrence and involvement in human disease. Several intriguing characteristics evident from the study of this cysteine-rich, zinc-binding domain have made it difficult to establish a single defining biochemical function for RINGs. These proteins are found throughout the cell and mediate diverse cellular processes, e.g. oncogenesis, apoptosis, development and viral infection. Recent developments indicate that RING-mediated protein interactions are critical for transcriptional repression and for ubiquitination. These data are in addition to previously established functions for RINGs in RNA processing, cell-cycle control and peroxisomal biogenesis, to name a few. At first glance, there appears to be little to link such disparate actions. Collectively, these results suggest that RINGs function in formation and architecture of large protein complexes that contribute to diverse cellular processes. Here, new developments, in the context of previous results, are discussed in an attempt to establish a unifying theory for RING function.

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