Crystal Structure of a Novel Esterase Rv0045c from Mycobacterium tuberculosis
Author Information
Author(s): Zheng Xiangdong, Guo Jiubiao, Xu Lipeng, Li Honglei, Zhang Dongwei, Zhang Kai, Sun Fei, Wen Tingyi, Liu Siguo, Pang Hai
Primary Institution: School of Medicine, Tsinghua University, Beijing, China
Hypothesis
Rv0045c is a novel member of the α/β hydrolase fold family involved in lipid metabolism in Mycobacterium tuberculosis.
Conclusion
The study reveals the 3D structure of Rv0045c, providing insights into its enzymatic mechanisms and potential role in lipid metabolism.
Supporting Evidence
- Rv0045c is a novel member of the α/β hydrolase fold family.
- The structure contains two distinct domains: the α/β fold domain and the cap domain.
- The active site of Rv0045c is highly conserved and consists of Ser154 and His309.
- Rv0045c can hydrolyze p-nitrophenyl derivatives, with p-nitrophenyl caproate being the most effective substrate.
Takeaway
Scientists studied a protein from tuberculosis bacteria to understand how it works, which could help in finding ways to fight the disease.
Methodology
The crystal structure of Rv0045c was determined using single-wavelength anomalous dispersion (SAD) and refined to 2.8 Å resolution.
Limitations
The study did not successfully crystallize the Rv0045c-substrate complex to clarify the catalytic mechanism.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website