Human/Mouse/Rat ERK1 Antibody

  
  • Species Reactivity
    Human, Mouse, Rat
  • Specificity
    Detects human, mouse, and rat ERK1 in Western blots. Detects neither recombinant nor endogenous ERK2 in Western blots.
  • Source
    Polyclonal Rabbit IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human ERK1
    Accession # XM_055766
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    0.1 µg/mL
    See below
  • Immunohistochemistry
    5-15 µg/mL
    Immersion fixed frozen sections of mouse embryo (E13)
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.
Data Examples
Detection of Human, Mouse, and Rat ERK1 by Western Blot.

Western blot shows lysates of MCF-7 human breast cancer cell line, HepG2 human hepatocellular carcinoma cell line, Jurkat human acute T cell leukemia cell line, and PC-12 rat adrenal pheochromocytoma cell line. PVDF membrane was probed with 0.1 µg/mL Rabbit Anti-Human/Mouse/Rat ERK1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF1575) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). For additional reference, Recombinant Human Active ERK1 (Catalog # 1879-KS) and Recombinant Human Active ERK2 (Catalog # 1230‑KS) (2 ng/lane) were included. A specific band for ERK1 was detected at approximately 44 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.

Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • 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: ERK1

ERK1 and ERK2 (also known as MAPK3 and MAPK1) are 44 and 42 kDa Ser/Thr kinases, respectively. They are part of the Ras-Raf-ERK signal transduction cascade often found downstream of growth factor receptor activation. ERK1 and ERK2 were initially isolated and cloned as kinases activated in response to insulin and NGF. They are expressed in most, if not all, mammalian tissues. Dual threonine and tyrosine phosphorylation activate both ERKs, at Thr202/Tyr204 for human ERK1 and Thr185/Tyr187 for human ERK2.

ERK5, also known as Big Mitogen-activated Protein Kinase 1 (BMK1) and MAPK7, is activated by several mechanisms, including receptor tyrosine kinases, G protein-coupled receptors, and osmotic stress. Like ERK1 and ERK2, ERK5 contains the conserved Thr-Glu-Tyr activation motif in its activation loop. Unlike these ERKs, however, ERK5 contains a unique C-terminal domain that regulates its activation and nuclear translocation.

  • Long Name:
    Extracellular Signal-regulated Kinase 1
  • Entrez Gene IDs:
    5595 (Human); 26417 (Mouse); 50689 (Rat)
  • Alternate Names:
    EC 2.7.11; ERK1; ERK-1; ERK1p44-MAPK; ERT2; Extracellular signal-regulated kinase 1; extracellular signal-related kinase 1; HS44KDAP; HUMKER1A; Insulin-stimulated MAP2 kinase; MAP kinase 1; MAP kinase 3; MAP kinase isoform p44; MAPK 1; MAPK 3; MAPK3; MGC20180; Microtubule-associated protein 2 kinase; Mitogen-activated protein kinase 1; mitogen-activated protein kinase 3; P44ERK1; p44-ERK1; p44mapk; PRKM3; PRKM3EC 2.7.11.24
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