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R4875 Sigma

Ribonuclease A from bovine pancreas

Type I-A, powder, ≥60% RNase A basis (SDS-PAGE), ≥50 Kunitz units/mg protein

Synonym: Pancreatic Ribonuclease, RNase A, Ribonuclease I, Ribonucleate 3′-pyrimidinooligonucleotidohydrolase

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Properties

Related Categories 3.1.x.x Acting on esters, 3.x.x.x Hydrolases, Application Index, Biochemicals and Reagents, Cell Biology,
type   Type I-A
assay   ≥60% RNase A basis (SDS-PAGE)
form   powder
mol wt   mol wt ~13,700
impurities   salt, essentially free
Featured Industry   Diagnostic Assay Manufacturing
foreign activity   protease, essentially free
storage temp.   −20°C

Description

Analysis Note

Protein determined by E1%/280.

Features and Benefits

• RNase protection assays
• Remove unspecifically bound RNA
• Analysis of RNA sequences
• Hydrolyze RNA contained in protein samples
• Purification of DNA

Packaging

1, 5 g in glass bottle

100, 500 mg in glass bottle

Preparation Note

Salt fractionated and chromatographically purified.

Application

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. RNase has been used as a tool for computer-aided drug design .

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.

Biochem/physiol Actions

Ribonuclease A is an endoribonuclease that cleaves single stranded RNA after pyrimidine nucleotides. It attacks at the 3’ phosphate end. Ribonucleases do not hydrolyze DNA, because the DNA lacks 2′-OH groups essential for the formation of cyclic intermediates. RNase can also hydrolyze RNA from protein samples. RNase A can be inhibited by alkylation of His12 and His119 and activated by potassium and sodium salts.

Price and Availability


All labs need water
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
RF0760000
Protocols & Articles

Protocols

Enzymatic Assay of Ribonuclease A (EC 3.1.27.5)

This procedure may be used for determination of Ribonuclease A (RNase A) activity. The Spectrophotometric Stop Rate Determination [Absorbance at 300 nm (A300), Light path = 1 cm] is based on the foll...

Related Content

Enzymes & Proteins

Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Molecular biology

Peer-Reviewed Papers
15

References

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