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Safety Information

R2520

Sigma-Aldrich

Ribonuclease inhibitor human

Inhibits ribonucleases during transcription and translation experiments

Synonym(s):

RNase Inhibitor, Ribonuclease Inhibitor

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About This Item

MDL number:
MFCD00132187
UNSPSC Code:
12352200
NACRES:
NA.52

biological source

human placenta

Quality Level

200

grade

for molecular biology

form

buffered aqueous solution

mol wt

~50 kDa

concentration

30,000-50,000 units/mL

shipped in

dry ice

storage temp.

−20°C

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General description

Ribonuclease inhibitor works to inhibit RNase activity by forming a tight, non-covalent 1:1 complex. It is human placenta. It inhibits RNases A, B, and C. It will not inhibit RNases H, 1, T1, S1 Nuclease, SP6, T7 RNA Polymerase, T3 RNA Polymerase, AMV Reverse Transcriptase, M-MLV Reverse Transcriptase, or Taq Polymerase. The inhibitor can be removed by phenol extraction or by heating to 65°C for 10 minutes.

Application

Suitable for use in
  • in vitro inhibition of ribonucleases
  • cDNA synthesis
  • RT-PCR
  • in vitro transcription and translation
Useful for in vitro inhibition of ribonucleases, including procedures like cDNA synthesis, RT-PCR, and in vitro transcription and translation.

Biochem/physiol Actions

Inhibits RNase by forming a tight, non-covalent 1:1 complex. Also inhibits angiogenin, a neovascularization promoter which is homologous with RNase A.

Components

Ribonuclease Inhibitor is provided as a solution in 20 mM HEPES-KOH( pH 7.6), 50 mM KCl, 8 mM DTT and 50% glycerol.

Other Notes

This inhibitor of RNase activity is isolated from human placenta and supplied as a buffered aqueous glycerol solution.
Solution in 50% glycerol, 20 mM HEPES-KOH, pH 7.6, 50 mM KCl and 8 mM DTT

Unit Definition

One unit will reduce the activity of 5 ng of ribonuclease A by 50% in a cytidine 2′:3′-cyclic monophosphate system.

Physical form

Solution in 50% glycerol, 20 mM HEPES-KOH, pH 7.6, 50 mM KCl and 8 mM DTT

replaced by

Product No.
Description
Pricing

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

R2520-EW:
R2520-10KU:
R2520-20KU:
R2520-2.5KU:
R2520-BULK:
R2520-VAR:

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Antimicrobial agents and chemotherapy, 49(3), 1135-1138 (2005-02-25)
The success of alpha interferon (IFN-alpha) monotherapy for the treatment of chronic hepatitis D is very limited. In this study, the efficacy of IFN-alpha and ribavirin combination therapy for chronic hepatitis D was investigated. Nineteen patients (15 males; mean age
Ribonuclease inhibitor from human placenta: interaction with derivatives of ribonuclease A.
P Blackburn et al.
The Journal of biological chemistry, 254(24), 12488-12493 (1979-12-25)
Michal Mikula et al.
The Journal of biological chemistry, 286(11), 9763-9775 (2011-01-15)
Components of the ERK cascade are recruited to genes, but it remains unknown how they are regulated at these sites. The RNA-binding protein heterogeneous nuclear ribonucleoprotein (hnRNP) K interacts with kinases and is found along genes including the mitogen-inducible early
Malia Su-Qin Murphy et al.
American journal of obstetrics and gynecology, 213(3), 367-367 (2015-05-20)
Preeclampsia (PE) is a hypertensive disorder of pregnancy characterized by widespread maternal endothelial dysfunction. Although clinical signs subside following delivery, long-term risks associated with PE include hypertension, stroke, and cardiovascular disease. MicroRNAs (miRNAs) are emerging as critical regulators of biological

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