Anti-RPS6KA5 antibody produced in rabbit

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

Anti-Ribosomal protein S6 kinase α-5 antibody produced in rabbit, Anti-RSK-like protein kinase antibody produced in rabbit, Anti-RSKL antibody produced in rabbit, Anti-90 kDa ribosomal protein S6 kinase 5 antibody produced in rabbit, Anti-Nuclear mitogen- and stress-activated protein kinase 1 antibody produced in rabbit
Human Protein Atlas Number:

biological source


Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity



immunoblotting: 0.04-0.4 μg/mL
immunohistochemistry: 1:20-1:50

immunogen sequence




UniProt accession no.

shipped in

wet ice

storage temp.


Gene Information

human ... RPS6KA5(9252)

General description

RPS6KA5 (Ribosomal protein S6 kinase a-5) encodes a serine/threonine-protein kinase consisting of two protein kinase domains in a single polypeptide. It is also called as mitogen and stress-activated protein kinase-1 (MSK-1).


Ribosomal protein S6 kinase α-5 recombinant protein epitope signature tag (PrEST)


Anti-RPS6KA5 antibody produced in rabbit, a Prestige Antibody, is developed and validated by the Human Protein Atlas (HPA) project (www.proteinatlas.org). 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.

Biochem/physiol Actions

RPS6KA5 (Ribosomal protein S6 kinase α-5) plays an essential role in mitogen or stress-induced phosphorylation of transcription factors CREB1 and ATF1. It associates and phosphorylates p65, a subunit of NF-κB, at Ser276 leading to transcriptional activation of NF-κB-dependent gene expression. It regulates mitogen and stress-induced phosphorylation of histone H3 and high-mobility-group protein (HMG)-14 in association with mitogen and stress-activated protein kinase-2 (MSK2). The protein is involved in erythropoietin-induced serine 727 phosphorylation of STAT3 in association with MEK, ERK. It mediates the regulation of ER81 transcription factor, that is involved in ontogenesis and breast tumor formation.

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.


Corresponding Antigen APREST70505.

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 Sigma-Aldrich Co. LLC


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.


12 - Non Combustible Liquids

WGK Germany


Flash Point F

Not applicable

Flash Point C

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificado de Análisis

Certificado de origen

Ana Soloaga et al.
The EMBO journal, 22(11), 2788-2797 (2003-05-30)
Cells respond to mitogenic or stress stimuli by the rapid induction of immediate-early (IE) genes, which occurs concomitantly with the phosphorylation of histone H3 and the high-mobility-group protein HMG-14. In mammalian cells this response is mediated via ERK and p38...
Albertus T J Wierenga et al.
Experimental hematology, 31(5), 398-405 (2003-05-24)
Erythropoietin (EPO) is a key regulator of erythropoiesis, playing a role in both the proliferation and differentiation of erythroid cells. One of the signal transduction molecules activated upon EPO stimulation is signal transducer and activator of transcription (STAT) 3. Besides...
Linda Vermeulen et al.
The EMBO journal, 22(6), 1313-1324 (2003-03-12)
Nuclear factor kappaB (NF-kappaB) is one of the key regulators of transcription of a variety of genes involved in immune and inflammatory responses. NF-kappaB activity has long been thought to be regulated mainly by IkappaB family members, which keep the...
Ralf Janknecht
Oncogene, 22(5), 746-755 (2003-02-06)
The transcription factor ER81 has been shown to be involved in ontogenesis and breast tumor formation. ER81 is activated by many signals through phosphorylation directly mediated by mitogen-activated protein kinases (MAPKs), but also by an unknown protein kinase(s). Here, mitogen-...
Simmi Suman Gehani et al.
Molecular cell, 39(6), 886-900 (2010-09-25)
Epigenetic regulation of chromatin structure is essential for the expression of genes determining cellular specification and function. The Polycomb repressive complex 2 (PRC2) di- and trimethylates histone H3 on lysine 27 (H3K27me2/me3) to establish repression of specific genes in embryonic...

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