1j9g

Low Temperature (100K) Crystal Structure of Flavodoxin D. vulgaris S64C Mutant, monomer oxidised, at 2.4 Angstrom Resolution

spinqualitylabelsall models 1j9g, resolution 2.40Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1j9g is a 1 chain structure with sequence from Atcc 29579. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: FMN Related: 1j8q, 1j9e Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function [FLAV_DESVH] Low-potential electron donor to a number of redox enzymes. Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed Engineered flavodoxins in which a surface residue has been replaced by an exposed cysteine are useful modules to link multi-domain redox proteins obtained by gene fusion to electrode surfaces. In the present work, the crystal structure of the S35C mutant of Desulfovibrio vulgaris flavodoxin in the oxidized state has been determined and compared with a refined structure of the wild type (wt). The structure of wt flavodoxin (space group P4(3)2(1)2, unit-cell parameters a = 50.52, b = 50.52, c = 138.59 A) at 1.34 A resolution has been refined to R = 0.16 and R(free) = 0.18. The structure of the S35C mutant (space group P4(3)2(1)2, unit-cell parameters a = 50.55, b = 50.55, c = 138.39 A) at 1.44 A resolution has been refined to R = 0.13 and R(free) = 0.16. Data sets were collected with synchrotron radiation at 100 K. In the S35C mutant, the Cys35 thiol group points towards a hydrophobic region, whilst in the wt the Ser35 hydroxyl group points towards a more polar region. The solvent exposure of Cys35 is 43 A(2), of which 8 A(2) is for the sulfur. This is comparable to the exposure of 48 A(2) found for the wt Ser35, where that of the hydroxyl oxygen is also 8 A(2). Comparison of the refined crystal structures of wild-type (1.34 A) flavodoxin from Desulfovibrio vulgaris and the S35C mutant (1.44 A) at 100 K.,Artali R, Bombieri G, Meneghetti F, Gilardi G, Sadeghi SJ, Cavazzini D, Rossi GL Acta Crystallogr D Biol Crystallogr. 2002 Oct;58(Pt 10 Pt 2):1787-92. Epub, 2002 Sep 28. PMID:12351822 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Flavodoxin 3D structures

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