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E7407 Sigma

ERK1, active, untagged human

PRECISIO® Kinase, recombinant, expressed in baculovirus infected Sf9 cells, ≥70% (SDS-PAGE), buffered aqueous glycerol solution

Synonym: MAPK3, P44ERK1, P44MAPK, PRKM3



Related Categories Active Kinases, Application Index, Biochemicals and Reagents, Cell Biology, Cell Signaling Enzymes,
recombinant   expressed in baculovirus infected Sf9 cells
grade   PRECISIO® Kinase
assay   ≥70% (SDS-PAGE)
form   buffered aqueous glycerol solution
activity   329-445 nmol/min·mg
mol wt   mol wt ~44 kDa
shipped in   dry ice
storage temp.   −70°C
Gene Information   human ... MAPK3(5595)


Physical form

Supplied in 25 mM MOPS, pH 7.5, with 300 mM NaCl, 0.25 mM DTT, 0.1 mM EDTA, 0.1 mM PMSF, and 25% glycerol

Biochem/physiol Actions

Extracellular signal-regulated kinase 1 (ERK1) act as intermediate in multiple signaling cascades, and is acted upon by MEK protein. MEK are essential for Golgi fragmentation during mitosis, and this is achieved by its action upon an alternatively spliced isoform of ERK1, called ERK1c. ERK1/2 signaling plays a key role in cellular response to topoisomerase II poisoning, by activating G2/M checkpoint, and thus, prevents poison-induced cell death. In melanocytes, pleiotrophin suppresses pigmentation or melanogenesis, by degradation of MITF, through the activation of ERK1/2 signaling.

General description

Extracellular signal-regulated kinase 1 (ERK1) belongs to mitogen-activated protein kinases (MAPK)/ERK family of intermediate proteins in the signaling pathways. This gene contains nine exons and eight introns, and spans 9kb. It is a constitutively expressed protein, the activity of which is altered by the phosphorylation state. It has a higher expression level in nervous tissues. It contains 11 kinase subdomains, common between humans and mice. It has a molecular weight of 44kDa.

Legal Information

PRECISIO is a registered trademark of Sigma-Aldrich Co. LLC

Price and Availability

All labs need water

Biomedical Applications
Protocols & Articles


Alzheimer's Disease

Alzheimer's disease (AD) is the most common cause of dementia in the elderly and is characterized by gradual loss of cognitive functions. Hallmark pathohistological findings of AD include widespread ...
Carolyn L. Crankshaw
BioFiles v7 n2, 2011, 4–8
Keywords: Alzheimer Disease, Gene expression, Genetic, Genetics, Inflammation, Metabolism, Phosphorylations

Lipid Induced Insulin Resistance

Obesity is a well-established risk factor for the development of insulin resistance. Obesity is associated with the increased deposition of lipids in non-adipose tissue with subsequent decreases in i...
Linda Stephenson, Ph.D.
Biofiles v6 n4, 9
Keywords: Angiogenesis, Antivirals, Apoptosis, Biological processes, Cardiovascular, Catalog, Catalysis, Cell culture, Cell proliferation, Deposition, Diabetes, Events, Gene expression, Growth factors, Hormones, Inflammation, Metabolism, Metabolites, Obesity, Phosphorylations, Physiological Processes, Reductions, Transcription, Transduction, Type

Peer-Reviewed Papers


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