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Key Documents

HPA017893

Sigma-Aldrich

Anti-RRP1B antibody produced in rabbit

enhanced validation

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution, Ab1

Synonym(s):

Anti-KIAA0179, Anti-Nnp1, Anti-PPP1R136, Anti-RRP1

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About This Item

UNSPSC Code:
12352203
Human Protein Atlas Number:
NACRES:
NA.41

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

product line

Prestige Antibodies® Powered by Atlas Antibodies

form

buffered aqueous glycerol solution

species reactivity

human

enhanced validation

RNAi knockdown
Learn more about Antibody Enhanced Validation

technique(s)

immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:500-1:1000

immunogen sequence

SISQLSFAEDISADEDDQILSQGKHKKKGNKLLEKTNLEKEKGSRVFCVEEEDSESSLQKRRRKKKKKHHLQPENPGPGGAAPSLEQNRGREPEASGLKALKARVAEPGAEATSSTG

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

General description

Ribosomal RNA processing 1B (RRP1B) is a 52kDa protein mainly located in the nucleolus. It possesses a nucleolar protein of 52kDa (NOP52) homology domain and an RVxF (Arg/Lys-Val/Ile-Xaa-Phe/Trp) motif. The gene encoding RRP1B is localized to human chromosome 21.

Immunogen

Ribosomal RNA processing protein 1 homolog B recombinant protein epitope signature tag (PrEST)

Application

Anti-RRP1B antibody produced in rabbit, a Prestige Antibody, is developed and validated by the Human Protein Atlas (HPA) project . Each antibody is tested by immunohistochemistry against hundreds of normal and disease tissues. These images can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. The antibodies are also tested using immunofluorescence and western blotting. To view these protocols and other useful information about Prestige Antibodies and the HPA, visit sigma.com/prestige. Anti-RRP1B antibody produced in rabbit has been used for co-immunoprecipitation.

Biochem/physiol Actions

Ribosomal RNA processing 1B (RRP1B) is a metastasis modifier protein in breast cancer. It interacts with signal-induced proliferation-associated 1(SIPA1) and functions in the reduction of tumor growth. The expression of RRP1B regulates many extra cellular matrix (ECM) genes which are linked with tumor suppression. The protein has an effect on gene expression by regulating histone methylation and heterochromatinization. Along with bromodomain-containing protein 4 (Brd4), RRP1B transduces extracellular mechanistic signals to the nucleus.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.

Linkage

Corresponding Antigen APREST73881

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany

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Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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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M Lee et al.
Oncogene, 33(14), 1818-1827 (2013-04-23)
RRP1B (ribosomal RNA processing 1 homolog B) was first identified as a metastasis susceptibility gene in breast cancer through its ability to modulate gene expression in a manner that can be used to accurately predict prognosis in breast cancer. However
Santhoshi Rani Nanchari et al.
Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine, 36(2), 615-621 (2014-10-04)
Rrp1B (ribosomal RNA processing1 homolog B) is a novel candidate metastasis modifier gene in breast cancer. Functional gene assays demonstrated that a physical and functional interaction existing between Rrp1b and metastasis modifier gene SIPA1 causes reduction in the tumor growth
Delphine Chamousset et al.
Molecular biology of the cell, 21(23), 4212-4226 (2010-10-12)
A pool of protein phosphatase 1 (PP1) accumulates within nucleoli and accounts for a large fraction of the serine/threonine protein phosphatase activity in this subnuclear structure. Using a combination of fluorescence imaging with quantitative proteomics, we mapped the subnuclear localization
Evolutionary breakpoints on human chromosome 21.
MT Davisson
Genomics, 78(1-2), 99-106 (2001)
Minnkyong Lee et al.
Molecular cancer research : MCR, 12(12), 1818-1828 (2014-08-06)
Overexpression of ribosomal RNA processing 1 homolog B (RRP1B) induces a transcriptional profile that accurately predicts patient outcome in breast cancer. However, the mechanism by which RRP1B modulates transcription is unclear. Here, the chromatin-binding properties of RRP1B were examined to

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