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Chinese Name 核糖核酸酶A RNAse A ALIAS Pancreatic ribonuclease; ribonuclease I; Ribonucleate-3’-PyrimidinoLigonucleotidohydrolase Appearance White frozen dried powder Source Pancreatic Solubility 10 mg/mL RNA Dissolved liquid
Source: Bull pancreas
Nucleon ribonase A is a end -cutuucleic acid enzyme, which can attack the 3 'end of the pyrimidine residue of RNA, and the phosphate formed by cutting and adjacent nucleotide key. The ultimate product of the reaction is oligate 3 'phosphoric acid and the end with pyrine 3'. When there is no auxiliary factor and binary cation, the role of ribosacoruclease A can be suppressed by the placental RNA enzyme inhibitor (B1ackburn et al.1977) or oxygen -nucleoside complex (Puskas et al.1982). Note: Biochemical research; determining the structure of nucleic acid; analysis of ribosic acid (RNA) sequence; RNA in hydrolyzed protein samples; purification DNA.
Preparation method:
dissolved RNASE A powder in 0.01m naac pH5.2, so that the final concentration is 10mg/ml, for in the Heat at 100 ℃ boiling water bath for 15min, and slowly cool down at RT. Use a 0.1 volume 1m tris-HCL to adjust the pH value to about 7.4, and save it at -20 ° C. When the concentrated RNASE A solution is heated to 100 ° C under neutral pH, RNASE A sedimentation. (Note: From the third edition of the molecular cloning experiment guide, page 3)
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Username | Quantity | bought time |
Ya*** | 1 | 2024-06-11 |
Pa*** | 2 | 2024-05-26 |
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