Description_x000D_ General description_x000D_ The protein kinase AtMPK3 is a component of the MAP kinase cascade._x000D_ Specificity_x000D_ Anti-AtMPK3 recognizes AtMPK3._x000D_ Immunogen_x000D_ Synthetic peptide corresponding to amino acids at the C-terminus of Arabidopsis thaliana MPK3. This sequence is specific to AtMPK3 (not found in the other 20 known AtMPK isoforms). It has limited homology (58% identity) to the AtMPK6 isoform and shares significant homology (67% identity, continuous epitope) with the Nicotiana tabacum ortholog WIPK._x000D_ Application_x000D_ Anti-AtMPK3 antibody produced in rabbit has been used in immunoblotting analysis._x000D_ Physical form_x000D_ Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 15 mM sodium azide._x000D_ Storage and Stability_x000D_ For continuous use, store at 2-8 °C for up to one month. For extended storage, freeze in working aliquots. Repeated freezing and thawing is not recommended. Storage in frost-free freezers is also not recommended. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use. Working dilutions should be discarded if not used within 12 hours._x000D_ Disclaimer_x000D_ 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._x000D_ Biochem/physiol Actions_x000D_ AtMPK3 is a component of the plant MAPK signaling cascade that functions downstream of the FLS2 receptor and regulates the innate response to bacterial and fungal infections. AtMPK3 is also involved in the phosphorylation of VIP1 in response to Agrobacterium infection and the subsequent transfer of the bacterial T-DNA into the nucleus. RNAi mediated inhibition of AtMPK6 causes prolonged activation of AtMPK3 . Anti-AtMPK3 antibody is specific for AtMPK3 (43 kDa). The product also reacts with Nicotiana tabacum and p56 in Papaver rhoeas . In immunoblotting, staining of AtMPK3 is specifically inhibited with AtMPK3 immunizing peptide (Arabidopsis thaliana, amino acids 359-370).