Рибонуклеаза

Ribonuclease Source: Bovine(Porcine) Pancrease General description Pancreatic Ribonuclease (RNase I) catalyzes cleavage of the phosphodiester bond between the 5'-ribose of a nucleotide and the phosphate group attached to the 3'-ribose of an adjacent pyrimidine nucleotide forming a 2',3'-cyclic phosphate which may then be hydrolyzed to the corresponding 3'-nucleoside phosphate. Ribonuclease A has a molecular weight of 13,700 daltons. It operates in an optimum pH range of 7.0-7.5. The high purity Ribonuclease of Beijing Geyuantianrun Bio-tech Co., Ltd.. is purified by re-crystallization, and then by Ion Exchange Chromatography and ultra-filtration. Specification ItemsSpecificationMethod Appearance White or pale yellow lyophilized powderUSP32Solvent Transparentness Not more opalescent than ref.suspension USP32Loss on drying No more than 5.0% USP32 DNA Not detectableSigma-aldrich Activity No less than 50Kunitz units/mg,Sigma-aldrich Storage Sealed, Dark, at temperature 2-8