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A6979 Sigma-Aldrich

Anti-AtMPK4 antibody produced in rabbit

affinity isolated antibody, liquid

Synonym: Anti-Arabidopsis thaliana MPK4



Related Categories ATH-AZ, Alphabetical Index, Antibodies, Antibodies for Cell Biology, Antibodies for Kinase/Phosphatase Biology,
conjugate   unconjugated
clone   polyclonal
biological source   rabbit
application(s)   western blot: 0.5-1 μg/mL using extract (cytosolic fraction) of Arabidopsis thaliana and Nicotiana tabacum leaves
species reactivity   Arabidopsis thaliana
mol wt   antigen 43 kDa
form   liquid
shipped in   dry ice
storage temp.   −20°C
antibody form   affinity isolated antibody
Quality Level   200
antibody product type   primary antibodies
grade   for molecular biology
Gene Information   Arabidopsis thaliana ... ATMPK4(828151)


General description

Anti-AtMPK4 is produced in rabbit using as immunogen a synthetic peptide corresponding to the C-terminus of Arabidopsis thaliana MPK4 (Anti- mitogen-activated protein kinase-4), conjugated to KLH. In Arabidopsis thaliana, 20 genes (MPKs) encode putative plant MAPKs, which can be grouped into four or five classes according to sequence similarity. All plant mitogen-activated protein kinase (MAPKs) are classified into the plant extracellular-regulated kinase (PERK) subfamily.

Mitogen-activated protein kinase-4 (MPK4) is expressed in the nucleus. In pre-mitotic and interphase cells, it is found in the cytoplasm.


synthetic peptide corresponding to the C-terminus of Arabidopsis thaliana MPK4 (amino acids 365-376). This sequence is specific to AtMPK4 (not found in the other 20 known AtMPK isoforms). It shares limited homology (50-60% identity, continuous epitope) to the AtMPK5 and AtMPK12 isoforms.


Anti- mitogen-activated protein kinase-4 (AtMPK4) antibody produced in rabbit has been used for Western blotting.

Anti-AtMPK4 antibody has been used in
• immunoblotting
• immunoprecipitation
• co-immunoprecipitation
• western blotting

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide.


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.

Biochem/physiol Actions

In Arabidopsis thaliana putative functions have been assigned to AtMPK3, AtMPK4, and AtMPK6, and all three mitogen-activated protein kinase (MAPKs) have been linked to diverse stress responses, including oxidative stress signaling, pathogen defense, drought, high salt, cold, and touch. Arabidopsis MAPKs, Anti- mitogen-activated protein kinase-3 (AtMPK3), Anti- mitogen-activated protein kinase-4 (AtMPK4), and Anti- mitogen-activated protein kinase-6 (AtMPK6) are rapidly and transiently activated by stress responses, by activation of distinct signal transduction pathways, involving upstream MAPKKKs (e.g. AtANP1 and AtMEKK1) and MAPKKs including AtMKK1/2 and AtMKK4/5.

Mitogen-activated protein kinase-4 (MPK4) negatively modulates systemic-acquired resistance. It functions as a regulator of retrograde signaling for photosynthesis, growth and immune defenses. It also has a role in cytokinesis and microtubule organization.

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles


Antibody Basics

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Western Blot Protocol | Immunoblotting Protocol

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Keywords: AGE, Buffers, Cell disruption, Detection methods, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

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Peer-Reviewed Papers


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