Product Pathways - Neuroscience
Phospho-MAP2 (Thr1620/1623) Antibody #4544
|4544S||100 µl (10 western blots)||---||In Stock||---|
|4544||carrier free and custom formulation / quantity||email request|
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|W||1:1000||Human||Transfected Only||82, 280||Rabbit|
Species cross-reactivity is determined by western blot.
Applications Key: W=Western Blotting
Species predicted to react based on 100% sequence homology: Mouse.
Specificity / Sensitivity
Phospho-MAP2 (Thr1620/1623) Antibody detects transfected MAP2 (at a dilution of up to 1:20,000) only when phosphorylated at threonines 1620/1623. This antibody does not cross-react with phosphorylated tau.
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Thr1620/1623 of human MAP2. Antibodies are purified by protein A and peptide affinity chromatography.
Western blot analysis of extracts from COS cells, untransfected (lane 1), or MAP2C transfected (lanes 2,3), using Phospho-MAP2 (Thr1620/1623) Antibody (upper) or MAP2 Antibody #4542 (lower). In lane 3, the lysate was treated with lamda phosphatase to demonstrate phospho-specificity of the antibody. (Human MAP2C construct is a generous gift from Dr. B. Shafit-Zagardo, Dept. of Pathology, Albert Einstein College of Medicine, Bronx, NY.)
Microtubule-associated protein 2 (MAP2) is a neuronal phosphoprotein that regulates the structure and stability of microtubules, neuronal morphogenesis, cytoskeleton dynamics, and organelle trafficking in axons and dendrites (1). Multiple MAP2 isoforms are expressed in neurons, including high molecular weight MAP2A and MAP2B (280 and 270 kDa), and low molecular weight MAP2C and MAP2D (70 and 75 kDa). Phosphorylation of MAP2 modulates its association with the cytoskeleton and is developmentally regulated. GSK-3 and p44/42 MAP kinase phosphorylate MAP2 at Ser136, Thr1620, and Thr1623 (2,3). Phosphorylation at Thr1620/1623 by GSK-3 inhibits MAP2 association with microtubules and microtubule stability (3).
- Yamaguchi, S. et al. (2011) Neurosci Res 69, 32-40. Applications: Western Blotting, IF-IC (In Cells).
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