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. Ribonuclease B has a molecular weight of 14,700 ± 300 daltons. It is a glycoprotein which possesses an amino acid composition indistinguishable from that of RNase A. It contains 6 residues of mannose and 2 residues of N-acetylglucosamine per molecule. It is a glycosylated derivative of RNase A. Ribonuclease is inhibited by heavy metal ions and it is competitively inhibited by DNA. Since Molecular Biology Grade RNase A (Product R128619) is essentially free of DNase and protease activities, this product is useful in removing RNA from DNA in nucleic acid work and where other enzymes are used or where intact proteins must be recovered.Ribonuclease A is used to remove RNA from DNA plasmid preparations and protein samples. It is also used in RNA sequence analysis and protection assays. 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. Ribonuclease B has a molecular weight of 14,700 ± 300 daltons. It is a glycoprotein which possesses an amino acid composition indistinguishable from that of RNase A. It contains 6 residues of mannose and 2 residues of N-acetylglucosamine per molecule. It is a glycosylated derivative of RNase A. Ribonuclease is inhibited by heavy metal ions and it is competitively inhibited by DNA. Since Molecular Biology Grade RNase A (Product R128619) is essentially free of DNase and protease activities, this product is useful in removing RNA from DNA in nucleic acid work and where other enzymes are used or where intact proteins must be recovered. Ribonuclease A is used to remove RNA from DNA plasmid preparations and protein samples. It is also used in RNA sequence analysis and protection assays.
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核糖核酸酶A 来源于牛胰腺(无DNase & Protease)
Dangerous GoodsCAS number：unknown molecular formula：
overview
compound introduction
Specs
| Chinese alias | - | ||
| English alias | 9001-99-4 | Nuclease, ribo- | L-HISTIDINE, N-beta-ALANYL- | 2-(3-aminopropanoylamino)-3-(1H-imidazol-5-yl)propanoic acid | 9001-73-4 | DL-(3-aminopropanoyl)histidine | 108333-82-0 | 2-(3-aminopropanamido)-3-(1H-imidazol-5-yl)propanoic acid | beta-Alanylhi | ||
| CAS number | unknown | molecular formula | |
| molecular weight | - | Exact mass | - |
| PSA | - | logp | - |
numbering system
No numbering system information yet
physicochemical properties
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Safety information
pictogram：
GHS08
Signal word：
Danger
Hazard Statement：
H334: 吸入可能引起过敏或哮喘病症状或呼吸困难
Statement of Preventive Measures：
P261: 避免吸入灰尘/烟雾/气体/雾/蒸汽/喷雾 P501: 将内容物/容器处理到。。。 P284: 如果通风不良，请佩戴呼吸防护装置。 P304+P340: 如误吸入：将人转移到空气新鲜处，保持呼吸舒适体位。 P342+P316: 如果出现呼吸道症状：立即寻求急救。
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MSDS
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