04-417 | Anti-RSK1 Antibody, clone E4,, rabbit monoclonal

100 µL  
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      Key Spec Table

      Species ReactivityKey ApplicationsHostFormatAntibody Type
      H, M, RWB, ICC, IP, FC, IHCRbUnpurifiedMonoclonal Antibody
      Catalogue Number04-417
      DescriptionAnti-RSK1 Antibody, clone E4,, rabbit monoclonal
      Alternate Names
      • Ribosomal protein S6 kinase alpha-1
      • 90 kDa ribosomal protein S6 kinase 1
      • p90-RSK 1
      • p90RSK1
      • p90S6K
      • MAP kinase-activated protein kinase 1a
      • MAPK-activated protein kinase 1a
      • MAPKAP kinase 1a
      • Ribosomal S6 kinase 1
      • RSK-1
      Background InformationRSK 1 (p90-RSK 1) is a member of a family of 90 kDa ribosomal protein S6 kinases, which includes RSK 1, RSK 2 and RSK 3. These are broadly expressed serine/threonine protein kinases (1) activated in response to mitogenic stimuli, including extracellular signal-regulated protein kinases Erk1 and Erk2 (2). p90-RSK 1 is activated by MAPK in vitro and in vivo via phosphorylation (3). Active RSKs appear to play a major role in transcriptional regulation by translocating to the nucleus and phosphorylating c-Fos and CREB (2,4).
      Product Information
      • MCF7 cell lysate
      PresentationRabbit Monoclonal in buffer containing glycerol, BSA, and sodium azide.
      ApplicationPlease note that this product will not be available for sale after March 15, 2015. Please select one of the other antibodies against this target.
      Key Applications
      • Western Blotting
      • Immunocytochemistry
      • Immunoprecipitation
      • Flow Cytometry
      • Immunohistochemistry
      Application NotesImmunohistochemistry Analysis: A 1:100 dilution from a representative lot was used in colon tissue.
      Immunocytochemistry Analysis: A 1:200 dilution from a representative lot was used in IC.
      Immunoprecipitation Analysis: A 1:10 dilution from a representative lot was used in IP.
      Flow Cytometry Analysis: A 1:50 dilution from a representative lot was used in FC.
      Biological Information
      ImmunogenSynthetic peptide corresponding to the N-terminus of human RSK1.
      Cloneclone E4,
      SpecificityThis antibody recognizes the N-terminus of RSK1.
      Species Reactivity
      • Human
      • Mouse
      • Rat
      Antibody TypeMonoclonal Antibody
      Entrez Gene Number
      Gene Symbol
      • RSK1
      • HU-1
      • RSK
      • MAPKAPK-1a
      • MAPKAPK1
      • RSK-1
      • S6K-alpha-1
      • p90-RSK 1
      • p90RSK1
      • p90S6K
      • EC
      • OTTHUMP00000004113
      • OTTHUMP00000004115
      • OTTHUMP00000233803
      • OTTHUMP00000233804
      • OTTHUMP00000233807
      • S6K-alpha 1
      • EC 2.7.11
      Purification MethodUnpurified
      UniProt Number
      UniProt SummaryFUNCTION: Serine/threonine-protein kinase that acts downstream of ERK (MAPK1/ERK2 and MAPK3/ERK1) signaling and mediates mitogenic and stress-induced activation of the transcription factors CREB1, ETV1/ER81 and NR4A1/NUR77, regulates translation through RPS6 and EIF4B phosphorylation, and mediates cellular proliferation, survival, and differentiation by modulating mTOR signaling and repressing pro-apoptotic function of BAD and DAPK1. In fibroblast, is required for EGF-stimulated phosphorylation of CREB1, which results in the subsequent transcriptional activation of several immediate-early genes. In response to mitogenic stimulation (EGF and PMA), phosphorylates and activates NR4A1/NUR77 and ETV1/ER81 transcription factors and the cofactor CREBBP. Upon insulin-derived signal, acts indirectly on the transcription regulation of several genes by phosphorylating GSK3B at 'Ser-9' and inhibiting its activity. Phosphorylates RPS6 in response to serum or EGF via an mTOR-independent mechanism and promotes translation initiation by facilitating assembly of the preinitiation complex. In response to insulin, phosphorylates EIF4B, enhancing EIF4B affinity for the EIF3 complex and stimulating cap-dependent translation. Is involved in the mTOR nutrient-sensing pathway by directly phosphorylating TSC2 at 'Ser-1798', which potently inhibits TSC2 ability to suppress mTOR signaling, and mediates phosphorylation of RPTOR, which regulates mTORC1 activity and may promote rapamycin-sensitive signaling independently of the PI3K/AKT pathway. Mediates cell survival by phosphorylating the pro-apoptotic proteins BAD and DAPK1 and suppressing their pro-apoptotic function. Promotes the survival of hepatic stellate cells by phosphorylating CEBPB in response to the hepatotoxin carbon tetrachloride (CCl4). Is involved in cell cycle regulation by phosphorylating the CDK inhibitor CDKN1B, which promotes CDKN1B association with 14-3-3 proteins and prevents its translocation to the nucleus and inhibition of G1 progression.
      CATALYTIC ACTIVITY: ATP + a protein = ADP + a phosphoprotein.
      COFACTOR: Magnesium.
      ENZYME REGULATION: Upon extracellular signal or mitogen stimulation, phosphorylated at Thr-573 in the C-terminal kinase domain (CTKD) by MAPK1/ERK2 and MAPK3/ERK1. The activated CTKD then autophosphorylates Ser-380, allowing binding of PDPK1, which in turn phosphorylates Ser-221 in the N-terminal kinase domain (NTDK) leading to the full activation of the protein and subsequent phosphorylation of the substrates by the NTKD.
      SUBUNIT STRUCTURE: Forms a complex with either MAPK1/ERK2 or MAPK3/ERK1 in quiescent cells. Transiently dissociates following mitogenic stimulation. Interacts with ETV1/ER81 and FGFR1.
      SUBCELLULAR LOCATION: Nucleus. Cytoplasm
      PTM: Activated by phosphorylation at Ser-221 by PDPK1. Autophosphorylated on Ser-380, as part of the activation process. May be phosphorylated at Thr-359 and Ser-363 by MAPK1/ERK2 and MAPK3/ERK1.
      N-terminal myristoylation results in an activated kinase in the absence of added growth factors.
      SEQUENCE SIMILARITIES: Belongs to the protein kinase superfamily. AGC Ser/Thr protein kinase family. S6 kinase subfamily.
      Contains 1 AGC-kinase C-terminal domain.
      Contains 2 protein kinase domains.
      Molecular Weight~83 kDa observed
      Physicochemical Information
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality AssuranceEvaluated by Western Blot in MCF7 cell lysate.
      WesternBlot Analysis: A 1:1,000 dilution of this antibody detected RSK1 in MCF7 cell lysate.
      Usage Statement
      • 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.
      Storage and Shipping Information
      Storage ConditionsStable for 1 year at -20ºC from date of receipt.
      Handling Recommendations: Upon first thaw, and prior to removing cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20ºC. Avoid freeze/thaw cycles, which may damage IgG and affect product performance.
      Note: Variability in freezer temperatures below -20°C may cause glycerol containing solutions to become frozen during storage. Note: Variability in freezer temperatures below -20°C may cause glycerol containing solutions to become frozen during storage.
      Packaging Information
      Material Size100 µL
      Transport Information
      Supplemental Information

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      Life Science Research > Antibodies and Assays > Primary Antibodies