6qv8 | pdb_00006qv8

Staphylococcus aureus superoxide dismutase SodM double mutant

spinqualitylabelsall models 6qv8, resolution 1.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6qv8 is a 2 chain structure with sequence from "micrococcus_aureus"_(rosenbach_1884)_zopf_1885 "micrococcus aureus" (rosenbach 1884) zopf 1885. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: MN Gene: sodA, sodM, BN1321_40056, BTN44_00625, CSC83_08500, CV021_03995, EP54_06740, EQ90_09180, ERS072840_00559, HMPREF3211_00238, M1K003_0636, NCTC10654_00163, NCTC10702_00282, NCTC11940_00074, NCTC13131_06218, NCTC13196_01115, NCTC5664_00801, RK64_01130, SAMEA1466939_02412, SAMEA1708674_03236 ("Micrococcus aureus" (Rosenbach 1884) Zopf 1885) Activity: Superoxide dismutase, with EC number 1.15.1.1 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [W8UU58_STAAU] Destroys radicals which are normally produced within the cells and which are toxic to biological systems.[RuleBase:RU000414] Publication Abstract from PubMed Almost half of all enzymes utilize a metal cofactor. However, the features that dictate the metal utilized by metalloenzymes are poorly understood, limiting our ability to manipulate these enzymes for industrial and health-associated applications. The ubiquitous iron/manganese superoxide dismutase (SOD) family exemplifies this deficit, as the specific metal used by any family member cannot be predicted. Biochemical, structural and paramagnetic analysis of two evolutionarily related SODs with different metal specificity produced by the pathogenic bacterium Staphylococcus aureus identifies two positions that control metal specificity. These residues make no direct contacts with the metal-coordinating ligands but control the metal's redox properties, demonstrating that subtle architectural changes can dramatically alter metal utilization. Introducing these mutations into S. aureus alters the ability of the bacterium to resist superoxide stress when metal starved by the host, revealing that small changes in metal-dependent activity can drive the evolution of metalloenzymes with new cofactor specificity. An evolutionary path to altered cofactor specificity in a metalloenzyme.,Barwinska-Sendra A, Garcia YM, Sendra KM, Basle A, Mackenzie ES, Tarrant E, Card P, Tabares LC, Bicep C, Un S, Kehl-Fie TE, Waldron KJ Nat Commun. 2020 Jun 1;11(1):2738. doi: 10.1038/s41467-020-16478-0. PMID:32483131 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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