Structural highlights
Function
[EFG_MYCTU] Catalyzes the GTP-dependent ribosomal translocation step during translation elongation. During this step, the ribosome changes from the pre-translocational (PRE) to the post-translocational (POST) state as the newly formed A-site-bound peptidyl-tRNA and P-site-bound deacylated tRNA move to the P and E sites, respectively. Catalyzes the coordinated movement of the two tRNA molecules, the mRNA and conformational changes in the ribosome (By similarity).
Publication Abstract from PubMed
Mycobacterium tuberculosis (Mtb) caused an estimated 10 million cases of tuberculosis and 1.2 million deaths in 2019 globally. The increasing emergence of multidrug-resistant and extensively drug-resistant Mtb is becoming a public health threat worldwide and makes the identification of anti-Mtb drug targets urgent. Elongation factor G (EF-G) is involved in tRNA translocation on ribosomes during protein translation. Therefore, EF-G is a major focus of structural analysis and a valuable drug target of antibiotics. However, the crystal structure of Mtb EF-G1 is not yet available, and this has limited the design of inhibitors. Here, we report the crystal structure of Mtb EF-G1 in complex with GDP. The unique crystal form of the Mtb EF-G1-GDP complex provides an excellent platform for fragment-based screening using a crystallographic approach. Our findings provide a structure-based explanation for GDP recognition, and facilitate the identification of EF-G1 inhibitors with potential interest in the context of drug discovery.
Crystal Structure of Mycobacterium tuberculosis Elongation Factor G1.,Gao X, Yu X, Zhu K, Qin B, Wang W, Han P, Aleksandra Wojdyla J, Wang M, Cui S Front Mol Biosci. 2021 Sep 3;8:667638. doi: 10.3389/fmolb.2021.667638., eCollection 2021. PMID:34540889[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Gao X, Yu X, Zhu K, Qin B, Wang W, Han P, Aleksandra Wojdyla J, Wang M, Cui S. Crystal Structure of Mycobacterium tuberculosis Elongation Factor G1. Front Mol Biosci. 2021 Sep 3;8:667638. doi: 10.3389/fmolb.2021.667638., eCollection 2021. PMID:34540889 doi:http://dx.doi.org/10.3389/fmolb.2021.667638
