Abstract
β-Bungarotoxin is a heterodimeric neurotoxin consisting of a phospholipase A2 subunit linked by a disulfide bond to a K+ channel binding subunit, which is a member of of the Kunitz protease-inhibitor subfamily. Purified β1-bungarotoxin was crystallized using microdialysis techniques. The rectangular-shaped crystals are orthorhombic, space group C2221, with unit-cell dimensions a = 80.7, b = 82.5, c = 56.9 Å. The crystals have a calculated Vm of 2.35 Å3 Da−1 for one molecule in the asymmetric unit. This corresponds to a solvent content of 48%. X-ray intensity data were collected to 2.6 Å resolution. The data set is 97.4% complete.
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More From: Acta Crystallographica Section D Biological Crystallography
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