Purification and crystallization of a dimeric form of acetylcholinesterase from Torpedo californica subsequent to solubilization with phosphatidylinositol-specific phospholipase C. 1988

J L Sussman, and M Harel, and F Frolow, and L Varon, and L Toker, and A H Futerman, and I Silman
Department of Structural Chemistry, Weizmann Institute of Science, Rehovot, Israel.

A dimeric form of acetylcholinesterase from Torpedo californica was purified to homogeneity by affinity chromatography subsequent to solubilization with a phosphatidylinositol-specific phospholipase C of bacterial origin. Bipyramidal crystals of the enzyme were obtained from solutions in polyethylene glycol 200. The crystals diffract to 2.0 A (1 A = 0.1 nm) resolution. They were found to be orthorhombic, space group P2221, with a = 163.4(+/- 0.2) A, b = 112.1(+/- 0.2) A, c = 81.3(+/- 0.1) A.

UI MeSH Term Description Entries
D010727 Phosphoric Diester Hydrolases A class of enzymes that catalyze the hydrolysis of one of the two ester bonds in a phosphodiester compound. EC 3.1.4. Phosphodiesterase,Phosphodiesterases,Hydrolases, Phosphoric Diester
D002846 Chromatography, Affinity A chromatographic technique that utilizes the ability of biological molecules, often ANTIBODIES, to bind to certain ligands specifically and reversibly. It is used in protein biochemistry. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Chromatography, Bioaffinity,Immunochromatography,Affinity Chromatography,Bioaffinity Chromatography
D003460 Crystallization The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Crystalline Polymorphs,Polymorphism, Crystallization,Crystal Growth,Polymorphic Crystals,Crystal, Polymorphic,Crystalline Polymorph,Crystallization Polymorphism,Crystallization Polymorphisms,Crystals, Polymorphic,Growth, Crystal,Polymorph, Crystalline,Polymorphic Crystal,Polymorphisms, Crystallization,Polymorphs, Crystalline
D000110 Acetylcholinesterase An enzyme that catalyzes the hydrolysis of ACETYLCHOLINE to CHOLINE and acetate. In the CNS, this enzyme plays a role in the function of peripheral neuromuscular junctions. EC 3.1.1.7. Acetylcholine Hydrolase,Acetylthiocholinesterase,Hydrolase, Acetylcholine
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014101 Torpedo A genus of the Torpedinidae family consisting of several species. Members of this family have powerful electric organs and are commonly called electric rays. Electric Rays,Torpedinidae,Rays, Electric
D014961 X-Ray Diffraction The scattering of x-rays by matter, especially crystals, with accompanying variation in intensity due to interference effects. Analysis of the crystal structure of materials is performed by passing x-rays through them and registering the diffraction image of the rays (CRYSTALLOGRAPHY, X-RAY). (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Xray Diffraction,Diffraction, X-Ray,Diffraction, Xray,Diffractions, X-Ray,Diffractions, Xray,X Ray Diffraction,X-Ray Diffractions,Xray Diffractions
D043265 Phosphatidylinositol Diacylglycerol-Lyase A phosphorus-oxygen lyase found primarily in BACTERIA. The enzyme catalyzes the cleavage of a phosphoester linkage in 1-phosphatidyl-1D-myo-inositol to form 1D-myo-inositol 1,2-cyclic phosphate and diacylglycerol. The enzyme was formerly classified as a phosphoric diester hydrolase (EC 3.1.4.10) and is often referred to as a TYPE C PHOSPHOLIPASES. However it is now known that a cyclic phosphate is the final product of this enzyme and that water does not enter into the reaction. 1-Phosphatidylinositol Phosphodiesterase,Monophosphatidylinositol Phosphodiesterase,1 Phosphatidylinositol Phosphodiesterase,Diacylglycerol-Lyase, Phosphatidylinositol,Phosphatidylinositol Diacylglycerol Lyase,Phosphodiesterase, 1-Phosphatidylinositol,Phosphodiesterase, Monophosphatidylinositol
D054801 Phosphoinositide Phospholipase C A type C phospholipase with specificity towards PHOSPHATIDYLINOSITOLS that contain INOSITOL 1,4,5-TRISPHOSPHATE. Many of the enzymes listed under this classification are involved in intracellular signaling. 1-Phosphatidyl-D-myo-Inositol-4,5-bisphosphate Inositoltrisphosphohydrolase,1-Phosphatidylinositol-4,5-Bisphosphate Phosphodiesterase,PIP2-PLC,PIP2-Phosphoinositidase C,PPI Phosphodiesterase,Phosphatidylinositide-4,5-Bisphosphate Phospholipase C,Phosphatidylinositol-4,5-Biphosphate-Phosphodiesterase,Phosphatidylinositol-Specific Phospholipase C,Phosphoinositide Selective Phospholipase C,Phosphoinositol Specific Phospholipase C,Polyphosphoinositide Phosphodiesterase,Polyphosphoinositide Phospholipase C,PtdIns(4,5)P2 Phosphodiesterase,Tri-phosphoinositide Phosphodiesterase,Triphosphoinositide Phosphodiesterase,1 Phosphatidyl D myo Inositol 4,5 bisphosphate Inositoltrisphosphohydrolase,1 Phosphatidylinositol 4,5 Bisphosphate Phosphodiesterase,Inositoltrisphosphohydrolase, 1-Phosphatidyl-D-myo-Inositol-4,5-bisphosphate,PIP2 Phosphoinositidase C,Phosphatidylinositide 4,5 Bisphosphate Phospholipase C,Phosphatidylinositol 4,5 Biphosphate Phosphodiesterase,Phosphatidylinositol Specific Phospholipase C,Phosphodiesterase, 1-Phosphatidylinositol-4,5-Bisphosphate,Phosphodiesterase, PPI,Phosphodiesterase, Polyphosphoinositide,Phosphodiesterase, Triphosphoinositide,Phospholipase C, Phosphatidylinositide-4,5-Bisphosphate,Phospholipase C, Phosphatidylinositol-Specific,Phospholipase C, Polyphosphoinositide,Tri phosphoinositide Phosphodiesterase

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