RSK1 [p Ser380] Antibody (1024A) [Unconjugated]

Western blot shows lysates of Jurkat human acute T cell leukemia cell line and HeLa human cervical epithelial carcinoma cell line untreated (-) or treated (+) with 200 nM PMA or PMA and Ionomycin for 20 minutes. PVDF membrane was probed with 0.1 µg/mL of Rabbit Anti-Human/Mouse/Rat Phospho-RSK1 (S380) Monoclonal Antibody (Catalog # MAB79671) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for Phospho-RSK1 (S380) at approximately 93 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

RSK1 was detected in immersion fixed HeLa human cervical epithelial carcinoma cell line, unstimulated (panels B and D) or stimulated with PMA (panels A and C), using Rabbit Anti-Human/Mouse/Rat Phospho-RSK1 (S380) Monoclonal Antibody (Catalog # MAB79671) at 25 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rabbit IgG Secondary Antibody (red, upper panels; Catalog # NL004) and counterstained with DAPI (blue, lower panels). Specific staining was localized to plasma membrances and cytoplasm. View our protocol for Fluorescent ICC Staining of Cells on Coverslips.

Simple Western lane view shows lysates of HeLa human cervical epithelial carcinoma cell line untreated (-) or treated (+) with 200 nM PMA for 20 minutes, and loaded at 0.2 mg/mL. A specific band was detected for Phospho-RSK1 (S380) at approximately 90 kDa (as indicated) using 1 μg/mL of Rabbit Anti-Human/Mouse/Rat Phospho-RSK1 (S380) Monoclonal Antibody (Catalog # MAB79671). This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

• Reactivity: Hu, Mu, Rt
• Applications: WB, Simple Western, ICC/IF
• Clone: 1024A
• Clonality: Monoclonal
• Host: Rabbit
• Conjugate: Unconjugated

RSK1 [p Ser380] Antibody (1024A) [Unconjugated] Summary

• Additional Information: Recombinant Monoclonal Antibody.
• Immunogen: Phosphopeptide containing the human RSK1 S380 site
  Accession # Q15418
• Modification: p Ser380
• Specificity: Detects human, mouse, and rat RSK1 when phosphorylated at S380 in Western blots. Expected to detect RSK2, RSK3, and RSK4 phosphorylated at S386, S377, and S389, respectively, based on sequence homology.
• Source: N/A
• Isotype: IgG
• Clonality: Monoclonal
• Host: Rabbit
• Gene: RPS6KA1
• Purity Statement: Protein A or G purified from cell culture supernatant

Applications/Dilutions

• Dilutions:
  • Immunocytochemistry 5-25 ug/mL
  • Simple Western 1 ug/mL
  • Western Blot 0.1 ug/mL
• Application Notes: In Simple Western only 10-15 uL of the recommended dilution is used per data point.

Packaging, Storage & Formulations

• 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.
• Buffer: 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.
• Preservative: Sodium Azide
• Reconstitution Instructions: Reconstitute at 0.5 mg/mL in sterile PBS.

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for RSK1 [p Ser380] Antibody (1024A) [Unconjugated]

• 90kD, polypeptide 1)
• EC 2.7.11
• EC 2.7.11.1,90 kDa ribosomal protein S6 kinase 1
• HU-1
• MAP kinase-activated protein kinase 1a
• MAPK-activated protein kinase 1a
• MAPKAP kinase 1a
• MAPKAPK-1a
• MAPKAPL1A
• p90RSK1
• p90S6K
• ribosomal protein S6 kinase alpha 1
• ribosomal protein S6 kinase alpha-1
• ribosomal protein S6 kinase, 90kD, polypeptide 1
• ribosomal protein S6 kinase, 90kDa, polypeptide 1
• Ribosomal S6 kinase 1
• RPS6KA1
• RSK
• RSK1
• RSK-1
• RSK1p90-RSK 1
• S6K-alpha 1
• S6K-alpha-1

Background

RSK1 (ribosomal S6 kinase 1), gene name RPS6KA1 (ribosomal protein S6 kinase alpha 1), also called p90RSK1 (90 kDa RSK1) or MAPKAPK 1a (MAPK-activated protein kinase 1a), is a widely expressed member of the RSK family of growth factor-regulated serine/threonine kinases. RSK proteins contain two non-identical kinase catalytic domains, and mediate activation of mitogen-activated kinase (MAPK) cascades and stimulation of cell proliferation and differentiation. Autophosphorylation on S380 allows binding of PDPK1, leading to further phosphorylation and full activation of RSK1 kinase activity. Human, mouse and rat RSK1 share 98% aa sequence identity, and are identical within the region of the peptide immunogen.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Publications for RSK1 Antibody (MAB79671)(1)

Publication using MAB79671

• J Guo, P Jayaprakas, J Dan, P Wise, GB Jang, C Liang, M Chen, DT Woodley, M Fabbri, W Li PRAS40 Connects Microenvironmental Stress Signaling to Exosome-Mediated Secretion Mol. Cell. Biol., 2017-09-12;0(0):. 9/12/2017 [PMID: 28674187]

Bioinformatics

• Gene Symbol: RPS6KA1
• Uniprot:
  • Q15418()