6nbp | pdb_00006nbp

Crystal Structure of a Sugar N-Formyltransferase from the Plant Pathogen Pantoea ananatis

spinqualitylabelsall models 6nbp, resolution 1.70Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6nbp is a 1 chain structure with sequence from "bacillus_ananas"_serrano_1928 "bacillus ananas" serrano 1928. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: 0FX, FON, NA, PO4 Gene: SAMN03097714_1080 ("Bacillus ananas" Serrano 1928) Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Pantoea ananatis is a Gram-negative bacterium first recognized in 1928 as the causative agent of pineapple rot in the Philippines. Since then various strains of the organism have been implicated in the devastation of agriculturally important crops. Some strains, however, have been shown to function as non-pathogenic plant growth promoting organisms. To date, the factors that determine pathogenicity or lack thereof between the various strains are not well understood. All P. ananatis strains contain lipopolysaccharides, which differ with respect to the identities of their associated sugars. Given our research interest on the presence of the unusual sugar, 4-formamido-4,6-dideoxy-d-glucose, found on the lipopolysaccharides of Campylobacter jejuni and Francisella tularensis, we were curious as to whether other bacteria have the appropriate biosynthetic machinery to produce these unique carbohydrates. Four enzymes are typically required for their biosynthesis: a thymidylyltransferase, a 4,6-dehydratase, an aminotransferase, and an N-formyltransferase. Here, we report that the gene SAMN03097714_1080 from the P. ananatis strain NFR11 does, indeed, encode for an N-formyltransferase, hereafter referred to as PA1080c. Our kinetic analysis demonstrates that PA1080c displays classical Michaelis-Menten kinetics with dTDP-4-amino-4,6-dideoxy-d-glucose as the substrate and N(10) -formyltetrahydrofolate as the carbon source. In addition, the X-ray structure of PA1080c, determined to 1.7 A resolution, shows that the enzyme adopts the molecular architecture observed for other sugar N-formyltransferases. Analysis of the P. ananatis NFR11 genome suggests that the three other enzymes necessary for N-formylated sugar biosynthesis are also present. Intriguingly, those strains of P. ananatis that are non-pathogenic apparently do not contain these genes. Investigation of a sugar N-formyltransferase from the plant pathogen Pantoea ananatis.,Hofmeister DL, Thoden JB, Holden HM Protein Sci. 2019 Apr;28(4):707-716. doi: 10.1002/pro.3577. Epub 2019 Feb 8. PMID:30666752 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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