title: A shortened synthesis of 4-(3-aminopropyl) pyrazole, an affinity ligand for alcohol dehydrogenase purification.
abstract: The most efficient, specific and rapid procedures for alcohol dehydrogenase (ADH) purification utilize immobilized 4-(3-aminopropyl) pyrazole to which pyrazole sensitive ADHs, i.e. class I isozymes, bind. Because of the length of the reported synthesis of this affinity resin, we synthesized the 4-(3-aminopropyl) pyrazole ligand by a new method in two steps from commercially available nicotinaldehyde. The ligand synthesized by this simplified procedure was directly coupled to the chain-extended support, Activated CH-Sepharose 4B, to yield the same ligand-spacer combination as reported by L.G. Lange and B.L. Vallee (Biochem. 15: 4681-4686, 1976). Human and hamster class I ADHs purified using this resin were homogeneous by SDS-PAGE followed by silver staining. Specific activity and recovery of human class I ADH were comparable to those previously reported.
authors: Developmental and Metabolic Neurology Branch, National Institutes of Health, Bethesda, MD 20892.
authors: S P
authors: SP
authors: Miller
authors: P R
authors: PR
authors: Giri
authors: D
authors: D
authors: Goldman
mesh_terms: D000426:Alcohol Dehydrogenase / Q000037:antagonists & inhibitors / Q000302:isolation & purification* / Q000378:metabolism; D000818:Animals; D055598:Chemical Phenomena; D002621:Chemistry; D002846:Chromatography, Affinity; D006224:Cricetinae; D004591:Electrophoresis, Polyacrylamide Gel; D006801:Humans; D007527:Isoenzymes / Q000302:isolation & purification / Q000378:metabolism; D008099:Liver / Q000201:enzymology*; D011720:Pyrazoles / Q000138:chemical synthesis*
chemical_list: D007527:Isoenzymes; D011720:Pyrazoles; C061231:4-(3-aminopropyl)pyrazole; D000426:Alcohol Dehydrogenase