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Trends Biochem Sci. 2004 Oct;29(10):522-4.

Raptor protein contains a caspase-like domain.

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  • 1Biochemistry Department, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, USA. kginal@chop.swmed.edu

Abstract

Using state-of-the-art sequence analysis and structure-prediction methods a caspase-like domain in the N-terminal region of raptor proteins has been identified. This domain, which is characterized by the presence of invariant catalytic Cys-His dyad, is evolutionarily and structurally related to known caspases and might have protease activity. This finding suggests several unexpected aspects of raptor function in the target of rapamycin (TOR) signaling pathway.

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