Preliminary Crystallographic Data for a New Crystalline Form of Abrin

作者：Chin Hsuan Wei, J. R. Einstein · 发表于：Journal of Biological Chemistry · 年份：1974 · DOI：10.1016/s0021-9258(19)42728-2 · 被引用次数：14 · 研究领域：Toxin Mechanisms and Immunotoxins、Transgenic Plants and Applications、Herbal Medicine Research Studies

Abstract A new crystalline form of abrin has been obtained from the most toxic constituent of the seed extract of Abrus precatorius. An x-ray diffraction study shows that the toxin crystallizes in a monoclinic unit cell of probable symmetry P21 and parameters a = 113 A, b = 72 A, c = 71 A, and β = 103°. The asymmetric unit contains 2 protein molecules of molecular weight 63,800 and has a solvent content of approximately 45% by volume.