Biomaterial Database

Purification of acetylcholinesterase from pig cerebral cortex by affinity chromatography. 1978

C A Reavill, and D T Plummer

Acetylcholinesterase from pig cerebral cortex was solubilised with 1% (w/v) Triton X-100 and purified by affinity chromatography. Three different ligands were investigated and details are given for their preparation. The elution profile depended on the presence of Triton X-100, the ionic strength and the inhibitor used to remove the enzyme from the column as well as the nature of the affinity material. The most efficient purification was obtained when the enzyme was eluted from a column containing the acetylcholinesterase inhibitor [1-methyl-9-(Nbeta-epsilon-amino-caproyl)-beta-aminopropylamino] acridinium bromide hydrobromide covalently linked to Sepharose 4B. A recovery of 44% of the applied enzyme was eluted from the column with a specific activity of 148 mumoles min-1 mg-1 and a purification of 900-fold.

UI	MeSH Term	Description	Entries
D002540	Cerebral Cortex	The thin layer of GRAY MATTER on the surface of the CEREBRAL HEMISPHERES that develops from the TELENCEPHALON and folds into gyri and sulci. It reaches its highest development in humans and is responsible for intellectual faculties and higher mental functions.	Allocortex,Archipallium,Cortex Cerebri,Cortical Plate,Paleocortex,Periallocortex,Allocortices,Archipalliums,Cerebral Cortices,Cortex Cerebrus,Cortex, Cerebral,Cortical Plates,Paleocortices,Periallocortices,Plate, Cortical
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
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
D013552	Swine	Any of various animals that constitute the family Suidae and comprise stout-bodied, short-legged omnivorous mammals with thick skin, usually covered with coarse bristles, a rather long mobile snout, and small tail. Included are the genera Babyrousa, Phacochoerus (wart hogs), and Sus, the latter containing the domestic pig (see SUS SCROFA).	Phacochoerus,Pigs,Suidae,Warthogs,Wart Hogs,Hog, Wart,Hogs, Wart,Wart Hog