Modeling a New Water Channel That Allows SET9 to Dimethylate p53
Author Information
Author(s): Bai Qifeng, Shen Yulin, Yao Xiaojun, Wang Fang, Du Yuping, Wang Qin, Jin Nengzhi, Hai Jun, Hu Tiejun, Yang Jinbo
Primary Institution: School of Life Science, Lanzhou University, Lanzhou, Gansu, China
Hypothesis
Can water leave the active site of SET9 through a channel following the monomethylation reaction?
Conclusion
The study demonstrates that a new channel allows water to flow in and out of the active site of SET9, which is essential for the dimethylation reaction to occur.
Supporting Evidence
- SET9 was previously thought to only add one methyl group, but evidence suggests it can add two.
- The new channel allows water to circulate, which is necessary for the dimethylation reaction.
- Molecular dynamics simulations showed that water can leave the active site through the new channel.
- The study measured the radii of channels to determine water movement capabilities.
Takeaway
Scientists found a new path for water to move in and out of a protein called SET9, which helps it add two tiny chemical tags to another protein called p53.
Methodology
Molecular dynamics simulations were performed on the crystal structure of SET9 to study the water movement in the active site.
Limitations
The study primarily focuses on the computational modeling and may not fully capture all biological complexities.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website