Crystallography of ATP hydrolysis mechanism in rat brain kinesin.
- Author:
Qun WAN
;
Pingting ZHU
;
Houning LÜ
;
Xinhong CHEN
- Publication Type:Journal Article
- MeSH:
Adenosine Triphosphate;
metabolism;
Adenylyl Imidodiphosphate;
metabolism;
Animals;
Brain;
metabolism;
Catalytic Domain;
Crystallography;
Hydrolysis;
Kinesin;
metabolism;
Microtubules;
metabolism;
Phosphates;
Protein Binding;
Rats
- From:
Chinese Journal of Biotechnology
2014;30(4):644-657
- CountryChina
- Language:Chinese
-
Abstract:
Rat brain kinesin is a conventional kinesin that uses the energy from ATP hydrolysis to walk along the microtubule progressively. Studying how the chemical energy in ATP is utilized for mechanical movement is important to understand this moving function. The monomeric motor domain, rK354, was crystallized. An ATP analog, AMPPNP, was soaked in the active site. Comparing the complex structure of rK354 x AMPPNP and that of rK354ADP, a hypothesis is proposed that Glu237 in the Switch II region sensors the presence of gamma-phosphate and transfers the signal to the microtubule binding region.
