Human Phospho-MSK1(S376)/MSK2(S360) Antibody

Catalog #: MAB25181 Datasheet / COA / SDS

Recombinant Monoclonal Antibody

Catalog #	Availability	Size / Price	Qty
MAB25181
MAB25181-SP

Phospho-MSK1(S376)/MSK2(S360) in HeLa Human Cell Line.

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Summary Data Examples Preparation and Storage Reconstitution Calculator Background Product Datasheets Related Research Areas

Human Phospho-MSK1(S376)/MSK2(S360) Antibody Summary

Species Reactivity

Human

Specificity

Detects human MSK1 and MSK2 when phosphorylated at S376 and S360, respectively.

Source

Recombinant Monoclonal Rabbit IgG Clone # 1013F

Purification

Protein A or G purified from cell culture supernatant

Immunogen

Phosphopeptide containing the human MSK1(S376) site.
Accession # O75582

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.

Label

Unconjugated

Applications

Recommended Concentration

Sample

Immunocytochemistry

1-25 µg/mL

See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Scientific Data

Immunocytochemistry

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Phospho-MSK1(S376)/MSK2(S360) in HeLa Human Cell Line. MSK1/2 phosphorylated at S376/S360 was detected in immersion fixed HeLa human cervical epithelial carcinoma cell line stimulated (top panel), or unstimulated (bottom panel), with 200 ng/mL Recombinant Human EGF (Catalog # 236-EG) using Rabbit Anti-Human MSK1/2 Monoclonal Antibody (Catalog # MAB25181) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rabbit IgG Secondary Antibody (red; Catalog # NL004) and counterstained with DAPI (blue). Specific staining was localized to nuclei. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Immunocytochemistry

View Larger

Phospho-MSK1(S376)/MSK2(S360) in HeLa Human Cell Line. MSK1/2 phosphorylated at S376/S360 was detected in immersion fixed HeLa human cervical epithelial carcinoma cell line treated with PMA using Rabbit Anti-Human MSK1/MSK2 Monoclonal Antibody (Catalog # MAB25181) at 1 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rabbit IgG Secondary Antibody (red; Catalog # NL004) and counterstained with DAPI (blue). Specific staining was localized to nuclei. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Reconstitution Calculator

Preparation and Storage

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: MSK1/MSK2

Mitogen- and Stress-activated protein Kinases 1 and 2 (MSK1/2) have been shown to play key roles in the transcriptional regulation of immediate early genes such as c-fos. MSK1, also known as Ribosomal Protein S6 Kinase 5 (RPS6KA5), and MSK2, also known as RSKB and RPS6KA4, belong to the AGC family of kinases. Both proteins have two kinase domains connected by a regulatory linker region, and are activated by the mitogen-activated protein kinases ERK1, ERK2, and p38. Nuclear MSK phosphorylates and activates a number of transcription factors, including ATF1 and CREB. The phosphorylation of MSK1 at Ser376 or the equivalent Ser360 in MSK2 is required for kinase activity. These sites are located in the AGC kinase domain and are autophosphorylated. Their phosphorylation is essential for the catalytic activity of the N-terminal kinase domain. The sequence surrounding MSK1(S376) and MSK2(S360) is 100% identical.

Long Name

Mitogen- and Stress-activated Protein Kinase 1 and 2

Alternate Names

1110069D02Rik; 3110005L17Rik; 6330404E13Rik; MSK1/MSK2