• USA Home
  • 03-206 - RIPAb+ hnRNP U - RIP Validated Antibody and Primer Set

EMAIL THIS PAGE TO A FRIEND
03-206 Sigma-Aldrich

RIPAb+ hnRNP U - RIP Validated Antibody and Primer Set

clone 3G6, from mouse

Synonym: Scaffold attachment factor A, heterogeneous nuclear ribonucleoprotein U, heterogeneous nuclear ribonucleoprotein U (scaffold attachment factor A), hnRNP U, hnRNP U protein, p120 nuclear protein

  •  eCl@ss 32160702

  •  NACRES NA.32

Purchase

Properties

Related Categories Antibodies, Antibody Kits, Immunoprecipitation Kits More...
Quality Level   100
biological source   mouse
clone   3G6, monoclonal
species reactivity   human
mfr. no.   RIPAb+
  Upstate®
application(s)   RIP: suitable
  western blot: suitable
isotype   IgG2bκ
NCBI accession no.   NP_004492.2
UniProt accession no.   Q00839
shipped in   dry ice

Description

General description

Heterogeneous nuclear ribonucleoproteins (hnRNPs) are thought to be involved in pre-mRNA processing. However, its role in the regulation of gene expression is as yet poorly understood. Proteins of the heterogeneous nuclear ribonucleoparticles (hnRNP) family form a structurally diverse group of RNA binding proteins implicated in various functions. Recently, hnRNP proteins have been shown to hinder communication between factors bound to different splice sites. Conversely, several reports have described a positive role for some hnRNP proteins in pre-mRNA splicing. hnRNP-U, also termed scaffold attachment factor A (SAF-A), binds to pre-mRNA and nuclear matrix/scaffold attachment region DNA elements.

RIPAb+ antibodies are evaluated using the RNA Binding Protein Immunoprecipitation (RIP) assay. Each RIPAb+ antibody set includes a negative control antibody to ensure specificity of the RIP reaction and is verified for the co-immunoprecipitation of RNA associated specifically with the immunoprecipitated RNA binding protein of interest. Where appropriate, the RIPAb+ set also includes quantitative RT-PCR control primers (RIP Primers) to biologically validate your IP results by successfully co-precipitating the specific RNA targets, such as messenger RNAs. The qPCR protocol and primer sequences are provided, allowing researchers to validate RIP protocols when using the antibody in their experimental context. If a target specific assay is not provided, the RIPAb+ kit is validated using an automated microfluidics-based assay by enrichment of detectable RNA over control immunoprecipitation.
Proteins of the heterogeneous nuclear ribonucleoparticles (hnRNP) family form a structurally diverse group of RNA binding proteins implicated in various functions. Recently, hnRNP proteins have been shown to hinder communication between factors bound to different splice sites. hnRNP-U, also termed scaffold attachment factor A (SAF-A), binds to pre-mRNA and nuclear matrix/scaffold attachment region DNA elements.

Specificity

This antibody recognizes hnRNP U.

Immunogen

Epitope: Unknown

Recombinant protein corresponding to human hnRNP U.

Application

Immunoprecipitation from RIP lysate:
Representative lot data.
RIP lysate from HeLa cells (~2 X 10E7 cell equivalents per IP) was subjected to immunoprecipitation using 5 µg of either a normal mouse IgG, (Cat. # CS200621), or 5 µg of Anti-hnRNP U antibody (Cat. # CS207320). ten percent of the precipitated proteins (lane 1: normal mouse IgG, lane 2: hnRNP U) and HeLa whole cell lysate (lane 3) were resolved by electrophoresis, transferred to nitrocellulose and probed with anti-hnRNP U antibody (Cat. # CS207320, 1:1000). Proteins were visualized using One-Step IP-Western kit (GenScript Cat. # L00231).
Arrow indicates hnRNP U. (Figure 2).
Automated Microfluidics-based Electrophoretic RNA Separation and Analysis (MFE):
Representative lot data.
RIP Lysate prepared from HeLa cells (2 X 10E7 cell equivalents per IP) were subjected to immunoprecipitation using 5 µg of either 1. normal mouse IgG (Cat. # CS200621), or 2. Anti-hnRNP U antibody (Cat. # CS207320) and the Magna RIP RNA-Binding Protein Immunoprecipitation Kit (Cat. # 17-700).
Successful immunoprecipitation of hnRNP U-associated RNA was verified by automated microfluidics-based electrophoretic RNA separation and analysis. Please refer to the Magna RIP (Cat. # 17-700) or EZ-Magna RIP (Cat. # 17-701) protocol for experimental details. Electropherograms were generated by plotting fluorescence intensities versus migration times (Figure 3A). The virtual gel view was created from this data (Figure 3B).
Western Blot Analysis:
Representative lot data.
K562 cell lysate was probed with Anti-hnRNP U, clone 3G6 (0.01 µg/mL). Proteins were visualized using a Goat Anti-Mouse IgG secondary antibody conjugated to HRP and a chemiluminescence detection system.

Arrow indicates hnRNP U (~120 kDa). (Figure 4).

Research Category
Epigenetics & Nuclear Function

Research Sub Category
RNA Metabolism & Binding Proteins

Apoptosis - Additional

This RIPAb+ hnRNP U -RIP Validated Antibody & Primer Set conveniently includes the hnRNP U antibody & the specific control PCR primers.

Packaging

10 assays per set. Recommended use: ~5 μg of antibody per RIP (dependent upon biological context).

Quality

RNA Binding Protein Immunoprecipitation:
Representative lot data.
RIP Lysate prepared from HeLa cells (2 X 10E7 cell equivalents per IP) were subjected to immunoprecipitation using 5 µg of either a normal mouse IgG or 5 µg of Anti-hnRNP U antibody and the Magna RIP® RNA-Binding Protein Immunoprecipitation Kit (Cat. # 17-700).
Successful immunoprecipitation of hnRNP U-associated RNA was verified by qPCR using RIP Primers Ribosomal Protein S19, (Figure 1).
Please refer to the Magna RIP (Cat. # 17-700) or EZ-Magna RIP (Cat. # 17-701) protocol for experimental details.

Target description

The calculated molecular weight is 90 kDa However, the protein is usually observed at ~120 kDa (Dreyfuss, G., et al. (2002). Nat Rev Mol Cell Biol. 3(3):195-205.)

Physical form

Anti-hnRNP U (Mouse Monoclonal), Part # CS207320. One vial containing 50 µg of protein G purified mouse IgG1 in 0.1M Tris-glycine, pH 7.4, 0.15M NaCl, 0.05% sodium azide and 30% glycerol. Store at -20°C.
Normal Mouse IgG, Part # CS200621. One vial containing 125 µg of purified mouse IgG in 125 µL of storage buffer containing 0.1% sodium azide. Store at -20°C.
RIP Primers, Ribosomal Protein S19, Part # CS207321. One vial containing 75 μL of 5 μM of each primer specific for human c-myc 3′ UTR. Store at -20°C.
FOR: ACG CGA GCT GCT TCC ACA G
REV: AGC TGC CAC CTG TCC GGC

Format: Purified

Protein G Purified

Storage and Stability

Stable for 1 year at -20°C from date of receipt.
Handling Recommendations: Upon receipt, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. Note: Variabillity in freezer temperatures below -20°C may cause glycerol containing solutions to become frozen during storage.

Analysis Note

Control
Includes negative control normal mouse IgG antibody and control primers specific for the cDNA of human Ribosomal Protein S19.

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Legal Information

MAGNA RIP is a registered trademark of Merck KGaA, Darmstadt, Germany

UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.
Protocols & Articles

Articles

Antibody Basics

Immunoglobulins (Igs) are produced by B lymphocytes and secreted into plasma. The Ig molecule in monomeric form is a glycoprotein with a molecular weight of approximately 150 kDa that is shaped more ...
Keywords: Affinity chromatography, Centrifugation, Chromatography, Digestions, Direct immunofluorescence, Gene expression, High performance liquid chromatography, Immunofluorescence, Ion Exchange, Microscopy, Precipitation, Purification, Rheumatology, Scanning electron microscopy

Related Content

Antibody Explorer | Buy Primary Antibodies & Secondary Antibodies

Primary, Secondary and Recombinant Monoclonal Antibodies Providing highly cited primary and secondary antibodies, we have you covered for your ELISA, western blot, immunohistochemistry or other assay...
Keywords: Alzheimer Disease, Cancer, Chromatin immunoprecipitation, Diagnostic, Enzyme-linked immunosorbent assay, Flow cytometry, Immunocytochemistry, Immunofluorescence, Immunohistochemistry, Neuroscience, Western blot

Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?