HtrA2/ Omi, a sheep in wolf's clothing.
Mammalian mitochondrial HtrA2/ Omi was originally described as an apoptosis inducer, but rather than having extra cells, mice with mutant HtrA2/ Omi suffer from a neurodegenerative disease due to progressive mitochondrial damage. This suggests that instead of promoting cell death by antagonizing inhibitor of apoptosis (IAP) proteins, the primary function of HtrA2/ Omi is to handle misfolded proteins in the mitochondria.[1]References
- HtrA2/Omi, a sheep in wolf's clothing. Vaux, D.L., Silke, J. Cell (2003) [Pubmed]
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