Knock-out mouse models of proprotein convertases: unique functions or redundancy?

Frontiers in Bioscience : a Journal and Virtual Library
John W M Creemers, Abdel-Majid Khatib


The members of the proprotein convertase family play a central role in the processing and/or activation of various protein precursors involved in many physiological processes and various pathologies. The proteolysis of these precursors that occur at basic residues within the general motif (K/R)-(X)-(K/R) is mediated by the proprotein convertases PC1/3, PC2, Furin, PACE4, PC4, PC5 and PC7, whereas the proteolysis of precursors within hydrophobic residues performed by the convertase S1P/SKI-1 and the convertase NARC-1/PCSK9 seems to prefer cleavages at the motif LVFAQSIP. Here we provide a comprehensive overview of their remarkable complex roles as revealed by disruption of their genes individually using generalized or conditional approaches.


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