ERK1/2 Antibody (B20-U)


Western Blot: ERK1/2 Antibody (B20-U) [NBP1-30128] - Left Lane: Marker, Right Lane: Rat brain crude lysate (100ug of protein loaded).
Immunocytochemistry/ Immunofluorescence: ERK1/2 Antibody (B20-U) [NBP1-30128] - Expression in HEK293 cells.

Product Details

Reactivity Hu, Mu, RtSpecies Glossary
Applications WB, ELISA, ICC/IF, IP

Order Details

ERK1/2 Antibody (B20-U) Summary

Additional Information
Recombinant Monoclonal Antibody.
Peptide derived from C-terminal sequence of human Erk2. Antibody recognizes the epitope located between Ile319 - Tyr333
Ile319 - Tyr333
Major clone of IgGs representing both, Erk1 (Gene ID: 5595, UniProt: P27361) and Erk2 (Gene ID: 5594, UniProt: P28482), obtained from immunoaffinity purified immunoglobulins corresponding to immunogenic peptide.
Immunogen affinity purified
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  • ELISA 1:20000-1:100000
  • Immunocytochemistry/Immunofluorescence 1:10-1:500
  • Immunoprecipitation 1:10-1:500
  • Western Blot 1:5000
Application Notes
For western blots, incubate the membrane with antibody diluted in blocking buffer 2 hours at room temperature. Western immunoblotting solutions: Wash buffer: 1x Tris Buffered Saline (TBS); 0.2% Triton X-100. Blocking buffer: 1xTBS; 0.2% Triton X-100; 8% nonfat dry milk.

Packaging, Storage & Formulations

Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
20mM Tris/HCl (pH 8.0) and 10 mg/ml BSA
0.05% Sodium Azide
Immunogen affinity purified


This antibody is immunoaffinity purified with immunogenic peptide as a ligand.

Alternate Names for ERK1/2 Antibody (B20-U)

  • EC 2.7.11
  • ERK-1
  • ERK1p44-MAPK
  • ERT2
  • Extracellular signal-regulated kinase 1
  • extracellular signal-related kinase 1
  • HS44KDAP
  • Insulin-stimulated MAP2 kinase
  • MAP kinase 1
  • MAP kinase 3
  • MAP kinase isoform p44
  • MAPK 1
  • MAPK 3
  • MGC20180
  • Microtubule-associated protein 2 kinase
  • Mitogen-activated protein kinase 1
  • mitogen-activated protein kinase 3
  • p44erk1
  • p44-ERK1
  • p44mapk


Erk1 and Erk2 are closely related mitogen activated protein (MAP) kinases which are activated by many growth factors, mitogens and differentiation-promoting agents via a protein kinase cascade. Also known as extracellular signal-regulated kinase 1 and 2, p44/p42 MAP kinases, microtubule-associated protein-2 kinases, myelin basic protein (MBP) kinases or EGF receptor T669 (Ert) kinases (2-5), Erk1 and Erk2 are ubiquitous and abundant, although their relative abundance in specific tissues may vary. The two kinases are nearly 85% identical and have higher identity in the core regions involved in substrate binding 5. Erk1 and Erk2 are activated approximately 1000-fold by phosphorylation within a Thr-Glu-Tyr motif in the activation loop on both threonine and tyrosine residues by Mek1 and Mek2 (5,6). Both sites must be phosphorylated for maximum activity (2-5). These kinases in turn phosphorylate a variety of different substrates. Erk1 and Erk2 are found in the cytoplasm and are translocated to the nucleus upon activation. Erk1 and Erk2 target membrane proteins, cytosolic proteins, such as downstream kinases, and cytoskeletal proteins and nuclear proteins, such as transcription factors. Many of these substrates are important regulatory proteins. Erk1 and Erk2 represent proximal kinases in the classical kinase pathway which links growth and differentiation signals at the cell surface (through tyrosine kinases) with transcription in the nucleus.


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.

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Secondary Antibodies


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Gene Symbol MAPK3