Davina Twiddy
Papers
1
Total Citations
120
H-Index
1
About
Davina Twiddy is a leading researcher in the molecular mechanisms of programmed cell death, with a specific focus on the regulation of the apoptosome complex. Her seminal work, published in 2004 and garnering over 120 citations, fundamentally advanced our understanding of how pro-apoptotic proteins released from the mitochondria control the assembly and activity of the native Apaf-1/Caspase-9 apoptosome. Twiddy’s research elucidated how this large, ∼700–1400 kDa caspase-activating complex is assembled following cytochrome c release, detailing the critical role of the Apaf-1 scaffold protein and its CARD and CED-4 domains. By characterizing the protein composition and caspase-processing activity of the native complex, she provided key insights into the precise molecular choreography of mitochondrial-dependent apoptosis. Her contributions have been instrumental in shaping current models of cell death regulation, with implications for understanding diseases where apoptosis is dysregulated, such as cancer and neurodegeneration. Twiddy’s work remains a cornerstone for researchers investigating the intricate signaling pathways that govern cellular life-and-death decisions.
Research Focus
Key Achievements
Top Papers
- 1