Hamburger Menu Button
Thermo Fisher Scientific Logo
Sign in
Don't have an account ? Create Account
  • Products
    • Antibodies
    • Cell Culture Media
    • Chemicals
    • Chromatography Columns and Cartridges
    • Lab Equipment
    • Lab Plasticware and Supplies
    • Microplates
    • Oligos, Primers, Probes and Genes
    • TaqMan Real-Time PCR Assays
    • Greener Products
    • See all product categories
  • Applications
    • Bioprocessing
    • Cell Culture and Transfection
    • Cell and Gene Therapy
    • Chromatography
    • Molecular Testing
    • Digital Solutions
    • DNA and RNA Extraction and Analysis
    • Spectroscopy, Elemental and Isotope Analysis
    • See all applications and techniques
  • Services
    • 360° CDMO and CRO Solutions
    • CDMO Services
    • CRO Services
    • Custom Services
    • Enterprise Services
    • Financial and Leasing Services
    • Instrument Services
    • Lab Informatics
    • OEM and Commercial Supply
    • Training Services
    • Unity Lab Services
    • See all services
  • Help and Support
    • How to Order
    • Instrument Support
    • Learning Centers
    • Register for an Account
    • Technical Support Centers
    • See all help and support topics
  • Popular
    • TaqMan Real-Time PCR Assays
      TaqMan Real-Time PCR Assays
    • Antibodies
      Antibodies
    • Oligos, Primers & Probes
      Oligos, Primers & Probes
    • GeneArt Gene Synthesis
      GeneArt Gene Synthesis
    • Cell Culture Plastics
      Cell Culture Plastics
  • Contact Us
  • Quick Order
  • Order Status and Tracking
  • Documents and Certificates
Thermo Fisher Scientific Logo

Search Thermo Fisher Scientific

Search All
Search button Close
          • Order Status
          • Quick Order
          • Sign in
            Sign in
            Don't have an account ? Create Account
            • Account
            • Check Order Status
            • Aspire Member Program
            • Connect: Lab, Data, Apps
            • Custom Products & Projects
            • Services Central

          Disclaimer

          Clicking the images or links will redirect you to a website hosted by BenchSci that provides third-party scientific content. Neither the content nor the BenchSci technology and processes for selection have been evaluated by us; we are providing them as-is and without warranty of any kind, including for use or application of the Thermo Fisher Scientific products presented.

          • Primary Antibodies ›
          • MEK1/2 Antibodies

          Invitrogen

          Phospho-MEK1/MEK2 (Ser217, Ser221) Monoclonal Antibody (C.158.9)

          Advanced Verification
          1 Published Figure
          1 Reference
          View all (33) MEK1/2 antibodies

          Promotion

          View available promotion(s)

          Promo code: {{promo.promoCode}} {{promo.promoDescription}}. {{$productOrderCtrl.translations['antibody.pdp.commerceCard.promotion.learnmore']}}

          Datasheet
          Protocols
          Questions & Answers
          Datasheet
          Protocols
          Questions & Answers

          Cite Phospho-MEK1/MEK2 (Ser217, Ser221) Monoclonal Antibody (C.158.9)

          • Antibody Testing Data (2)
          • Published Figures (1)
          • Advanced Verification (2)
          Phospho-MEK1/MEK2 (Ser217, Ser221) Antibody in Western Blot (WB)
          Group 53 Created with Sketch.
          Phospho-MEK1/MEK2 (Ser217, Ser221) Antibody in Western Blot (WB)
          Group 53 Created with Sketch.

          FIGURE: 1 / 5

          {{ $ctrl.currentElement.advancedVerification.fullName }}
          {{ $ctrl.currentElement.advancedVerification.text }}

          Phospho-MEK1/MEK2 (Ser217, Ser221) Antibody (MA5-15016) in WB

          WB analysis was performed on whole cell extracts (30 µg lysate) of A549 (1), A549 treated with EGF (200 ng/mL for 10 minutes) (2), A-431 (3), A-431 treated with EGF (200 ng/mL for 10 minutes) (4) and A-431 treated with Afatinib followed by EGF (0.5 uM of Afatinib for 6 hours, 200 ng/mL of EGF for 10 minutes) (5). The blot was probed with Anti-Phospho-MEK1/MEK2 (Ser217, Ser221) Rabbit Monoclonal Antibody (Pr... View More {{ $ctrl.currentElement.advancedVerification.fullName }} validation info. View more
          Published figure supplied by benchsci-logo
          PMID: {{$ctrl.currentElement.benchSciPubmedId}}
          View Product

          {{$ctrl.videoDesc}}

          {{$ctrl.videoLongDesc}}

          Phospho-MEK1/MEK2 (Ser217, Ser221) Antibody in Western Blot (WB)
          Phospho-MEK1/MEK2 (Ser217, Ser221) Antibody in Western Blot (WB)
          Phospho-MEK1/MEK2 (Ser217, Ser221) Antibody in Western Blot (WB)
          Phospho-MEK1/MEK2 (Ser217, Ser221) Antibody
          Phospho-MEK1/MEK2 (Ser217, Ser221) Antibody

          Product Details

          MA5-15016

          Applications
          Tested Dilution
          Publications

          Western Blot (WB)

          1:1,000
          View 1 publication 1 publication

          Immunoprecipitation (IP)

          1:50
          -
          Product Specifications

          Species Reactivity

          Human, Mouse, Non-human primate, Rat

          Published species

          Human

          Host/Isotype

          Rabbit / IgG

          Class

          Monoclonal

          Type

          Antibody

          Clone

          C.158.9

          Immunogen

          Synthetic phosphopeptide corresponding to residues around pSer217/221 of human MEK1/2
          View immunogen

          Conjugate

          Unconjugated Unconjugated Unconjugated

          Form

          Liquid

          Concentration

          26 µg/mL

          Purification

          Affinity chromatography

          Storage buffer

          0.01M HEPES, pH 7.5, with 0.15M NaCl, 100µg/mL BSA, 50% glycerol

          Contains

          <0.02% sodium azide

          Storage conditions

          -20°C

          Shipping conditions

          Ambient (domestic); Wet ice (international)

          RRID

          AB_10977854

          Product Specific Information

          It is not recommended to aliquot this antibody.

          Target Information

          MEK 1 (MAP Kinase Kinase, also known as MKK) is an integral component of the MAP kinase cascade that regulates cell growth and differentiation (Ahn, 1993; Chong et al., 2003). In brain, this pathway also plays a key role in synaptic (Adams and Sweatt, 2002). Activated MEK 1 acts as a dual specificity kinase phosphorylating both a threonine and a tyrosine residue on MAP kinase (Kyriakis et al., 1991; Seger et al., 1991; Crews et al., 1992).

          For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.

          Bioinformatics

          Protein Aliases: Dual specificity mitogen-activated protein kinase kinase 1; Dual specificity mitogen-activated protein kinase kinase 2; EC 2.7.12.2; ERK activator kinase 1; ERK activator kinase 2; kinase MEK1; MAP kinase kinase 1; MAP kinase kinase 2; MAP kinase/Erk kinase; MAP kinase/Erk kinase 1; MAPK/ERK kinase 1; MAPK/ERK kinase 2; MAPKK 1; MAPKK 2; MEK 1; MEK 2; MEK-1; MEK-2; MEK2; mitogen activated protein kinase kinase 1; mitogen activated protein kinase kinase 2; mitogen-activated protein kinase kinase 1; mitogen-activated protein kinase kinase 2, p45; MP2K1; protein kinase, mitogen activated, kinase 1, p45; protein kinase, mitogen activated, kinase 2, p45; protein kinase, mitogen-activated, kinase 1 (MAP kinase kinase 1)

          View more View less

          Gene Aliases: AA589381; CFC3; CFC4; MAP2K1; MAP2K2; MAPKK1; MAPKK2; MEK1; MEK2; MEKK1; MK2; MKK1; MKK2; PRKMK1; PRKMK2

          View more View less

          UniProt ID: (Human) Q02750, (Human) P36507, (Mouse) P31938, (Rat) Q01986, (Rat) P36506, (Mouse) Q63932

          View more View less

          Entrez Gene ID: (Human) 5604, (Human) 5605, (Mouse) 26395, (Rat) 170851, (Rat) 58960, (Mouse) 26396

          View more View less

          Function(s)
          protein kinase activity protein serine/threonine kinase activity receptor signaling protein serine/threonine kinase activity MAP kinase kinase activity protein serine/threonine/tyrosine kinase activity protein tyrosine kinase activity receptor signaling protein tyrosine phosphatase activity protein binding ATP binding protein C-terminus binding protein kinase binding protein serine/threonine kinase activator activity protein N-terminus binding PDZ domain binding protein complex scaffold metal ion binding scaffold protein binding nucleotide binding kinase activity transferase activity transferase activity, transferring phosphorus-containing groups Ras GTPase binding mitogen-activated protein kinase kinase kinase binding
          Process(es)
          MAPK cascade activation of MAPK activity regulation of protein phosphorylation regulation of vascular smooth muscle contraction protein phosphorylation response to oxidative stress cell cycle arrest mitotic nuclear division cell proliferation negative regulation of cell proliferation positive regulation of gene expression phosphorylation neuron differentiation keratinocyte differentiation positive regulation of cell migration melanosome transport regulation of stress-activated MAPK cascade positive regulation of transcription elongation from RNA polymerase II promoter negative regulation of homotypic cell-cell adhesion peptidyl-tyrosine dephosphorylation positive regulation of GTPase activity positive regulation of cell differentiation positive regulation of Ras protein signal transduction vesicle transport along microtubule Golgi inheritance response to axon injury regulation of axon regeneration neuron projection morphogenesis cell motility positive regulation of axonogenesis protein heterooligomerization response to glucocorticoid lung morphogenesis trachea formation epithelial cell proliferation involved in lung morphogenesis placenta blood vessel development labyrinthine layer development ERK1 and ERK2 cascade positive regulation of protein serine/threonine kinase activity regulation of Golgi inheritance cellular senescence mitophagy in response to mitochondrial depolarization regulation of early endosome to late endosome transport peptidyl-tyrosine phosphorylation peptidyl-serine autophosphorylation positive regulation of cell motility intracellular signal transduction heart development negative regulation of gene expression thyroid gland development proteolysis in other organism positive regulation of transcription, DNA-templated thymus development face development positive regulation of ERK1 and ERK2 cascade positive regulation of production of miRNAs involved in gene silencing by miRNA movement of cell or subcellular component chemotaxis signal transduction cerebellar cortex formation Bergmann glial cell differentiation
          It has to be done as per old AB suggested Products section.
          guarantee_icon

          Performance Guarantee

          If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*

          Learn more
          help_icon

          We're here to help

          Get expert recommendations for common problems or connect directly with an on staff expert for technical assistance related to applications, equipment and general product use.

          Contact tech support
          Ordering Plus Icon Minus Icon
          • Order Status
          • Order Help
          • Quick Order
          • Supply Center
          • eProcurement
          Support Plus Icon Minus Icon
          • Help and Support
          • Contact Us
          • Technical Support Centers
          • Documents and Certificates
          • Report a Site Issue
          Resources Plus Icon Minus Icon
          • Learning Centers
          • Promotions
          • Events and Webinars
          • Social Media
          About Thermo Fisher Plus Icon Minus Icon
          • About Us
          • Careers
          • Investors
          • News
          • Social Responsibility
          • Trademarks
          • Consumer Health Data Privacy Policy
          Our Portfolio Plus Icon Minus Icon
          • Thermo Scientific
          • Applied Biosystems
          • Invitrogen
          • Gibco
          • Ion Torrent
          • Fisher Scientific
          • Unity Lab Services
          • Patheon
          • PPD
          • Terms & Conditions
          • Privacy Information Center
          • Price & Freight Policy
          © 2006-2025 Thermo Fisher Scientific Inc. All rights reserved. All trademarks are the property of Thermo Fisher Scientific and its subsidiaries unless otherwise specified.
          United States flag icon
          United States

          Your items have has been added!


          Host server : magellan-search-67c77f6dc7-n6nf2:80/100.66.135.186:80.
          git-commit: 545e792480003146e539d624bd2a21b51d198228
          git-url: https://github.com/thermofisher/magellan-search
          git-branch: release/2.31.0-2025.06.23-1.0