6vat

Structure of the periplasmic domain of YejM from Salmonella typhimurium

spinqualitylabelsall models 6vat, resolution 2.35Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6vat is a 6 chain structure with sequence from Salmonella enterica subsp. enterica serovar 1,4,5,12:i:-. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.35Å Ligands: 1PE, CA, ETA, MG, P6G, PEG, PG4, PGE Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function YEJM_SALTY Publication Abstract from PubMed Recent recurrent outbreaks of Gram-negative bacteria show the critical need to target essential bacterial mechanisms to fight the increase of antibiotic resistance. Pathogenic Gram-negative bacteria have developed several strategies to protect themselves against the host immune response and antibiotics. One such strategy is to remodel the outer membrane where several genes are involved. yejM was discovered as an essential gene in E. coli and S. typhimurium that plays a critical role in their virulence by changing the outer membrane permeability. How the inner membrane protein YejM with its periplasmic domain changes membrane properties remains unknown. Despite overwhelming structural similarity between the periplasmic domains of two YejM homologues with hydrolases like arylsulfatases, no enzymatic activity has been previously reported for YejM. Our studies reveal an intact active site with bound metal ions in the structure of YejM periplasmic domain. Furthermore, we show that YejM has a phosphatase activity that is dependent on the presence of magnesium ions and is linked to its function of regulating outer membrane properties. Understanding the molecular mechanism by which YejM is involved in outer membrane remodeling will help to identify a new drug target in the fight against the increased antibiotic resistance. The essential inner membrane protein YejM is a metalloenzyme.,Gabale U, Pena Palomino PA, Kim H, Chen W, Ressl S Sci Rep. 2020 Oct 20;10(1):17794. doi: 10.1038/s41598-020-73660-6. PMID:33082366 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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