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MilliporeSigma

R4642

Sigma-Aldrich

Ribonucleasa A from bovine pancreas

(Solution of 50% glycerol, 10mM Tris-HCL pH 8.0)

Sinónimos:

ARNasa, ARNasa A, Ribonucleasa pancreática, Ribonucleato 3′-pirimidinooligonucleotidohidrolasa

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About This Item

Número de CAS:
Comisión internacional de enzimas:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.53

biological source

bovine pancreas

Quality Level

grade

for molecular biology

form

(Solution of 50% glycerol, 10mM Tris-HCL pH 8.0)

mol wt

13.7 kDa
~13,700

concentration

20-40 mg/mL

suitability

suitable for

foreign activity

Endonuclease and exonuclease, none detected
NICKase and DNase, none detected

storage temp.

−20°C

InChI

1S/C9H14N4O3/c10-2-1-8(14)13-7(9(15)16)3-6-4-11-5-12-6/h4-5,7H,1-3,10H2,(H,11,12)(H,13,14)(H,15,16)

InChI key

CQOVPNPJLQNMDC-UHFFFAOYSA-N

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General description

La ARNasa, ribonucleasa A, es una endorribonucleasa que escinde los enlaces fosfodiéster del ARN monocatenario después de nucleótidos de pirimidina. Ataca el extremo 3′ fosfato (por ejemplo, el pG-pG-pC-pA-pG será escindido para dar pG-pG-pCp y A-pG). La mayor actividad la exhibe con ARN monocatenario. La ARNasa A es un polipéptido monocatenario que contiene cuatro puentes bisulfuro. Al contrario que la ARNasa B, no es una glucoproteína. Las ribonucleasas no hidrolizan el ADN porque el ADN carece de los grupos 2′-OH esenciales para la formación de los intermediarios cíclicos. La ARNasa A también puede hidrolizar el ARN de las muestras proteicas. La ARNasa A puede ser inhibida por alquilación de la His12 o la His119 y activada por sales de potasio y de sodio. La RNAasa se inhibe en presencia de iones de los metales pesados. La ARNasa también es inhibida competitivamente por el ADN.
RNase A is an endoribonuclease that attacks at the 3′OHphosphate of a pyrimidine nucleotide. The sequence of 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.

Application

  • La ribonucleasa A se utiliza para eliminar el ARN de las preparaciones de ADN plasmídico y ADN genómico, y de las muestras de proteínas.
  • La ARNasa se utiliza también en el análisis de la secuencia del ARN y en los análisis de protección.
  • La RNasa A se ha utilizado como herramienta para el diseño de medicamentos asistido por ordenador.
  • La ARNasa A contribuye al análisis de las secuencias de ARN.
  • La ARNasa A hidroliza el ARN contenido en las muestras proteicas.
  • La ARNasa A apoya la purificación del ADN.
Suitable for:
  • RNase protection assays
  • Removal of unspecifically bound RNA
  • Analysis of RNA sequences
  • Hydrolysis of RNA contained in protein samples
  • Plasmid DNA purification

Features and Benefits

Nuestra muy estable ribonucleasa A, ARNasa A, es idónea para la eliminación del ARN, la secuenciación del ARN y la purificación del ADN.

Components

RNase A is supplied as a solution of 50% glycerol containing 10 mM Tris-HCl (pH 8.0).

Unit Definition

A major application for RNase A is the removal of RNA from preparations of plasmid DNA. For this application, DNase free RNase A is used at a final concentration of 10 ug/mL.

Boiling stock solutions of this RNase A product to inactivate residual DNase is not necessary and may cause precipitation of RNase and possible loss of enzymatic activity. If an RNase A solution is heated at a neutral pH, precipitation will occur. When heated at a lower pH, some precipitation may occur because of protein impurities that are present.

Analysis Note

Proteína determinada mediante E.

Other Notes

Activators of RNase A include potassium and sodium salts. RNase A can be inhibited by alkylation of His12 or His119.

Application

Referencia del producto
Descripción
Precios

inhibitor

Referencia del producto
Descripción
Precios

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Resp. Sens. 1

Storage Class

10 - Combustible liquids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificados de análisis (COA)

Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»

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Artículos

Available Fluorescent in situ hybridization (FISH) procedures, reagents and equipment.

Separation of Ribonuclease A from bovine pancreas, Type I-A, powder, ≥60% RNase A basis (SDS-PAGE), ≥50 Kunitz units/mg protein; α-Chymotrypsinogen A from bovine pancreas, essentially salt-free, lyophilized powder; Cytochrome c from bovine heart, ≥95% based on Mol. Wt. 12,327 basis; Lysozyme from chicken egg white, lyophilized powder, protein ≥90 %, ≥40,000 units/mg protein

Separation of Ribonuclease A from bovine pancreas, Type I-A, powder, ≥60% RNase A basis (SDS-PAGE), ≥50 Kunitz units/mg protein; α-Chymotrypsinogen A from bovine pancreas, essentially salt-free, lyophilized powder; Cytochrome c from bovine heart, ≥95% based on Mol. Wt. 12,327 basis; Lysozyme from chicken egg white, lyophilized powder, protein ≥90 %, ≥40,000 units/mg protein

Separation of Ribonuclease A from bovine pancreas, Type I-A, powder, ≥60% RNase A basis (SDS-PAGE), ≥50 Kunitz units/mg protein; α-Chymotrypsinogen A from bovine pancreas, essentially salt-free, lyophilized powder; Cytochrome c from bovine heart, ≥95% based on Mol. Wt. 12,327 basis; Lysozyme from chicken egg white, lyophilized powder, protein ≥90 %, ≥40,000 units/mg protein

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Chromatograms

application for HPLC

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