8yk6 | pdb_00008yk6

Magnetic effects of thaumatin crystals; observation of the crystal growth of magneto-Archimedes levitation and magnetic orientation

spinqualitylabelsall models 8yk6, resolution 0.99Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8yk6 is a 1 chain structure with sequence from Thaumatococcus daniellii. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 0.99Å Ligands: TLA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function THM1_THADA Taste-modifying protein; intensely sweet-tasting. It is 100000 times sweeter than sucrose on a molar basis. Publication Abstract from PubMed We examined the magnetic effect of thaumatin crystals, which are a well known model of protein crystals but which have hardly been studied for that effect. We succeeded in crystallizing thaumatin by magnetic levitation based on the magneto-Archimedes effect by the addition of the paramagnetic substance gadolinium chloride. We also carried out a chronological observation of the levitation process in a superconducting magnet, and visualized the magnetic orientation of the crystals by applying a magnetic field along the horizontal direction. In another major result, we carried out a diffraction experiment and performed a structural analysis of the crystals. We noticed from the results that no electron density from the gadolinium ion could be observed in the crystals. This suggests the possibility that the paramagnetic substance of the aqueous precipitant solution helps only to promote the crystals' levitation, and has little effect on thaumatin crystallization. Magnetic effects of thaumatin crystals; observation of crystal growth by magneto-Archimedes levitation and magnetic orientation.,Maki S, Fujiwara M, Fujiwara Y, Nakabayashi M, Morimoto S, Tanaka S, Fujiwara S, Hagiwara M, Inaka K PLoS One. 2025 Feb 13;20(2):e0315335. doi: 10.1371/journal.pone.0315335. , eCollection 2025. PMID:39946396 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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