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R4875 Sigma-Aldrich

Ribonuclease A from bovine pancreas

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

Synonym: Pancreatic Ribonuclease, RNAsea, RNase A, 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,
Quality Level   200
type   Type I-A
assay   ≥60% RNase A basis (SDS-PAGE)
form   powder
specific activity   ≥50 Kunitz units/mg protein
mol wt   ~13,700
impurities   salt, essentially free
Featured Industry   Diagnostic Assay Manufacturing
foreign activity   protease, essentially free
storage temp.   −20°C

Description

General description

RNase A, Ribonuclease A, is an endoribonuclease that cleaves the phosphodiester bonds of single strand RNA after pyrimidine nucleotides. It attacks at the 3′ phosphate end (For example pG-pG-pC-pA-pG will be cleaved to give pG-pG-pCp and A-pG). The highest activity is exhibited with single stranded RNA. RNase A is a single chain polypeptide containing 4 disulfide bridges. In contrast to RNase B, it is not a glycoprotein. Ribonucleases do not hydrolyze DNA, because the DNA lacks 2′-OH groups essential for the formation of cyclic intermediates. RNase A 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. RNAse is inhibited in the presence of heavy metal ions. RNase is also inhibited competitively by DNA.

Application

• RNase A is used to remove RNA from DNA plasmid and genomic DNA preparations and protein samples.
• RNase A is also used in RNA sequence analysis and protection assays.
• RNase A has been used as a tool for computer-aided drug design.
• RNase A supports the analysis of RNA sequences.
• RNase A hydrolyze RNA contained in protein samples.
• Purification of DNA is supported by RNase A.

Packaging

1, 5 g in glass bottle

100, 500 mg in glass bottle

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.

Features and Benefits

Our highly stable Ribonuclease A, RNase A, is suitable for removal of RNA, RNA sequencing, and DNA purification.

Preparation Note

Salt fractionated and chromatographically purified.

Analysis Note

Protein determined by E.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 3
RTECS 
RF0760000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

Articles

HPLC Analysis Proteins on Proteomix® SCX-NP1.7, Demonstration of Column Stability with Repeated Injections

From our library of Articles, Sigma-Aldrich presents HPLC Analysis Proteins on Proteomix® SCX-NP1.7, Demonstration of Column Stability with Repeated Injections
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HPLC Analysis of Four Low Moleculer Weight Proteins on 5μm BIOshell™ 160Å Peptide C18 Column, Comparison to Totally Porous 3 μm C18 Column

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Four Low Moleculer Weight Proteins on 5μm BIOshell™ 160Å Peptide C18 Column, Comparison to Totally Porous 3 μm C18 Column
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of HPLC Protein Standard on BIOshell™ A400 Protein C4

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of HPLC Protein Standard on BIOshell™ A400 Protein C4
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Peptides and Proteins on Proteomix® SCX-NP1.7, 3 cm x 4.6 mm I.D. Column

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Peptides and Proteins on Proteomix® SCX-NP1.7, 3 cm x 4.6 mm I.D. Column
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins Comparing Ion Selectivity on Proteomix® SCX-NP5

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins Comparing Ion Selectivity on Proteomix® SCX-NP5
Keywords: Chromatography, High performance liquid chromatography, Ion Exchange

HPLC Analysis of Proteins Comparing Ion Selectivity on Proteomix® WCX-NP5

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins Comparing Ion Selectivity on Proteomix® WCX-NP5
Keywords: Chromatography, High performance liquid chromatography, Ion Exchange

HPLC Analysis of Proteins Demonstrating Selectivity Differences between TSKgel® Strong (SP-5PW) and Weak (CM-5PW) Cation Exchangers

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins Demonstrating Selectivity Differences between TSKgel® Strong (SP-5PW) and Weak (CM-5PW) Cation Exchangers
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins and Peptides on Proteomix® WCX, Comparison of Different Particle Sizes

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins and Peptides on Proteomix® WCX, Comparison of Different Particle Sizes
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins and Peptides on Proteomix® WCX-NP1.7 Demonstrating Lot-to-Lot Reproducibility

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins and Peptides on Proteomix® WCX-NP1.7 Demonstrating Lot-to-Lot Reproducibility
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins by Cation Exchange on Proteomix® WCX-NP5: Affect of pH

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins by Cation Exchange on Proteomix® WCX-NP5: Affect of pH
Keywords: Chromatography, High performance liquid chromatography, Ion Exchange

HPLC Analysis of Proteins by Cation Exchange on Proteomix® WCX: Affect of Particle Size

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins by Cation Exchange on Proteomix® WCX: Affect of Particle Size
Keywords: Chromatography, High performance liquid chromatography, Ion Exchange

HPLC Analysis of Proteins by Immobilized Metal Ion Affinity Chromatography on TSKgel® Chelate-5PW

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins by Immobilized Metal Ion Affinity Chromatography on TSKgel® Chelate-5PW
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins by Size Exclusion on Zenix® Columns, Effect of Pore Size

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins by Size Exclusion on Zenix® Columns, Effect of Pore Size
Keywords: Chromatography, High performance liquid chromatography, Size-exclusion chromatography

HPLC Analysis of Proteins by Size Exclusion on Zenix® SEC-300 Columns, Effect of Flow Rate (15 cm column)

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins by Size Exclusion on Zenix® SEC-300 Columns, Effect of Flow Rate (15 cm column)
Keywords: Chromatography, High performance liquid chromatography, Size-exclusion chromatography

HPLC Analysis of Proteins by Size Exclusion on Zenix® SEC-300 Columns, Effect of Flow Rate (30 cm column)

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins by Size Exclusion on Zenix® SEC-300 Columns, Effect of Flow Rate (30 cm column)
Keywords: Chromatography, High performance liquid chromatography, Size-exclusion chromatography

HPLC Analysis of Proteins by Size Exclusion on Zenix® and SRT® SEC-300, Comparison of Particle Size and Column I.D.

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins by Size Exclusion on Zenix® and SRT® SEC-300, Comparison of Particle Size and Column I.D.
Keywords: Chromatography, High performance liquid chromatography, Size-exclusion chromatography

HPLC Analysis of Proteins on Antibodix® WCX-NP10, Comparison of WCX Columns

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on Antibodix® WCX-NP10, Comparison of WCX Columns
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins on BIOshell™ A160 Peptide C18

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on BIOshell™ A160 Peptide C18
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins on Discovery® BIO PolyMA-SCX (Analyte Set #2)

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on Discovery® BIO PolyMA-SCX (Analyte Set #2)
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins on Proteomix® SCX Columns, Effect of Particle Size of Resolution

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on Proteomix® SCX Columns, Effect of Particle Size of Resolution
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins on Proteomix® SCX-NP1.7, Demonstration of Lot-to-Lot Reproducibility

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on Proteomix® SCX-NP1.7, Demonstration of Lot-to-Lot Reproducibility
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins on Proteomix® SCX-NP5

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on Proteomix® SCX-NP5
Keywords: High performance liquid chromatography, Separation

HPLC Analysis of Proteins on Proteomix® WCX-NP5

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on Proteomix® WCX-NP5
Keywords: High performance liquid chromatography, Proteomics

HPLC Analysis of Proteins on TSKgel® BioAssist S, Ion Selectivity Comparison

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on TSKgel® BioAssist S, Ion Selectivity Comparison
Keywords: Chromatography, High performance liquid chromatography, Ion Exchange

HPLC Analysis of Proteins on TSKgel® BioAssist S

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on TSKgel® BioAssist S
Keywords: High performance liquid chromatography, Proteomics

HPLC Analysis of Proteins on TSKgel® Butyl-NPR

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on TSKgel® Butyl-NPR
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins on TSKgel® Phenyl-5PW

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on TSKgel® Phenyl-5PW
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins on TSKgel® Porous (Phenyl-5PW and Ether-5PW) and Non-Porous (Butyl-NPR) HIC Columns

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on TSKgel® Porous (Phenyl-5PW and Ether-5PW) and Non-Porous (Butyl-NPR) HIC Columns
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Proteins with Different pI Values on Proteomix® SCX-NP3

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins with Different pI Values on Proteomix® SCX-NP3
Keywords: Chromatography, High performance liquid chromatography

HPLC Analysis of Sigma Protein Standard Mix on Zenix® SEC-150

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Sigma Protein Standard Mix on Zenix® SEC-150
Keywords: Chromatography, Filtration, High performance liquid chromatography, Size-exclusion chromatography

HPLC Analysis of Sigma Protein Standard Mix on Zenix® SEC-300

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Sigma Protein Standard Mix on Zenix® SEC-300
Keywords: High performance liquid chromatography, Size-exclusion chromatography

HPLC Analysis of a Protein Mixture on Zenix® SEC-150 versus Zenix® SEC-300, Effect of Pore Size on Resolution

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of a Protein Mixture on Zenix® SEC-150 versus Zenix® SEC-300, Effect of Pore Size on Resolution
Keywords: Chromatography, Clinical, High performance liquid chromatography, Size-exclusion chromatography

HPLC Analysis of a Protein Standard Mix on SRT® SEC-500

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of a Protein Standard Mix on SRT® SEC-500
Keywords: Filtration, High performance liquid chromatography, Size-exclusion chromatography

Loading Capacity of RNaseA on Proteomix® SCX-NP3

From our library of Articles, Sigma-Aldrich presents Loading Capacity of RNaseA on Proteomix® SCX-NP3
Keywords: Chromatography, High performance liquid chromatography

Protein Molecular Weight Calibration Curve on Zenix® Size Exclusion Columns, Effect of Pore Size

From our library of Articles, Sigma-Aldrich presents Protein Molecular Weight Calibration Curve on Zenix® Size Exclusion Columns, Effect of Pore Size
Keywords: Chromatography, High performance liquid chromatography, Size-exclusion chromatography

Scalability of TSKgel® Phenyl-5PW Analytical HPLC Separations to Preparative/Process Scale on Toyopearl® Phenyl-650M Resins

From our library of Articles, Sigma-Aldrich presents Scalability of TSKgel® Phenyl-5PW Analytical HPLC Separations to Preparative/Process Scale on Toyopearl® Phenyl-650M Resins
Keywords: Chromatography, High performance liquid chromatography

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...

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Peer-Reviewed Papers
15

References

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