Anti-MEF2A antibody (50-150)

Clonality:	Polyclonal
Conjugation:	Unconjugated
Isotype:	IgG
Formulation:	PBS with 0.02% Sodium Azide, 50% Glycerol, pH7.3.
Purification:	Affinity purification
Dilution Range:	WB 1:500-1:2000 IF/ICC 1:50-1:200
Storage Instruction:	Store at-20°C for up to 1 year from the date of receipt, and avoid repeat freeze-thaw cycles.

Gene Symbol:	MEF2A
Gene ID:	4205
Uniprot ID:	MEF2A_HUMAN
Immunogen Region:	50-150
Immunogen:	A synthetic peptide corresponding to a sequence within amino acids 50-150 of human MEF2A (NP_005578.2).
Immunogen Sequence:	SSNKLFQYASTDMDKVLLKY TEYNEPHESRTNSDIVEALN KKEHRGCDSPDPDTSYVLTP HTEEKYKKINEEFDNMMRNH KIAPGLPPQNFSMSVTVPVT S

Tissue Specificity	Isoform MEF2 and isoform MEFA are expressed only in skeletal and cardiac muscle and in the brain. Isoform RSRFC4 and isoform RSRFC9 are expressed in all tissues examined.
Post Translational Modifications	Constitutive phosphorylation on Ser-408 promotes Lys-403 sumoylation thus preventing acetylation at this site. Dephosphorylation on Ser-408 by PPP3CA upon neuron depolarization promotes a switch from sumoylation to acetylation on residue Lys-403 leading to inhibition of dendrite claw differentiation. Phosphorylation on Thr-312 and Thr-319 are the main sites involved in p38 MAPK signaling and activate transcription. Phosphorylated on these sites by MAPK14/p38alpha and MAPK11/p38beta, but not by MAPK13/p38delta nor by MAPK12/p38gamma. Phosphorylation on Ser-408 by CDK5 induced by neurotoxicity inhibits MEF2A transcriptional activation leading to apoptosis of cortical neurons. Phosphorylation on Thr-312, Thr-319 and Ser-355 can be induced by EGF. Sumoylation on Lys-403 is enhanced by PIAS1 and represses transcriptional activity. Phosphorylation on Ser-408 is required for sumoylation. Has no effect on nuclear location nor on DNA binding. Sumoylated with SUMO1 and, to a lesser extent with SUMO2 and SUMO3. PIASx facilitates sumoylation in postsynaptic dendrites in the cerebellar cortex and promotes their morphogenesis. Acetylation on Lys-403 activates transcriptional activity. Acetylated by p300 on several sites in diffentiating myocytes. Acetylation on Lys-4 increases DNA binding and transactivation. Hyperacetylation by p300 leads to enhanced cardiac myocyte growth and heart failure. Proteolytically cleaved in cerebellar granule neurons on several sites by caspase 3 and caspase 7 following neurotoxicity. Preferentially cleaves the CDK5-mediated hyperphosphorylated form which leads to neuron apoptosis and transcriptional inactivation.
Function	Transcriptional activator which binds specifically to the MEF2 element, 5'-YTAAT(4)TAR-3', found in numerous muscle-specific genes. Also involved in the activation of numerous growth factor- and stress-induced genes. Mediates cellular functions not only in skeletal and cardiac muscle development, but also in neuronal differentiation and survival. Plays diverse roles in the control of cell growth, survival and apoptosis via p38 MAPK signaling in muscle-specific and/or growth factor-related transcription. In cerebellar granule neurons, phosphorylated and sumoylated MEF2A represses transcription of NUR77 promoting synaptic differentiation. Associates with chromatin to the ZNF16 promoter.
Protein Name	Myocyte-Specific Enhancer Factor 2a Serum Response Factor-Like Protein 1
Database Links	Reactome: R-HSA-198753 Reactome: R-HSA-525793
Cellular Localisation	Nucleus
Alternative Antibody Names	Anti-Myocyte-Specific Enhancer Factor 2a antibody Anti-Serum Response Factor-Like Protein 1 antibody Anti-MEF2A antibody Anti-MEF2 antibody

Information sourced from Uniprot.org

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