Mature Neuron Marker Antibody Sampler Kit #35574
Product Information
Kit Usage Information
Protocols
- 2837: Western Blotting, Immunohistochemistry (Paraffin), Immunofluorescence
- 3450: Western Blotting, Immunofluorescence, Immunofluorescence
- 5568: Western Blotting, Immunoprecipitation (Agarose), Immunofluorescence, Immunofluorescence
- 7074: Western Blotting
- 8707: Western Blotting, Immunoprecipitation (Agarose), Immunofluorescence
- 8945: Western Blotting, Immunoprecipitation (Agarose), Immunofluorescence
- 13179: Western Blotting, Immunohistochemistry (Paraffin), Immunofluorescence, Immunofluorescence, Flow
- 24307: Western Blotting, Immunohistochemistry (Paraffin), Immunofluorescence
- 36406: Western Blotting, Immunohistochemistry (Paraffin), Immunofluorescence
Product Description
Background
GAP43 is a nervous system specific, growth-associated protein enriched in growth cones and areas of high plasticity (3). GAP43 is integral to growth cone formation, neurite outgrowth, and the development of a functional cerebral cortex (4). The cytoskeleton, which is important in generating neuronal processes, consists of three types of cytosolic fibers: actin microfilaments, intermediate filaments, and microtubules. β3-tubulin is one of six β-tubulin isoforms that make up the building blocks of microtubules (5). 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 (6). MAP2 is preferentially localized to dendrites in cultured neurons (7). Neurofilaments are the major intermediate filaments found in neurons and consist of light (NFL), medium (NFM), and heavy (NFH) subunits (8). Similar in structure to other intermediate filament proteins, neurofilaments have a globular amino-terminal head, a central α-helical rod domain, and a carboxy-terminal tail. A heterotetrameric unit (NFL-NFM and NFL-NFH) forms a protofilament, with eight protofilaments comprising the typical 10 nm intermediate filament (9). Neurofilaments are critical for radial axon growth and determine axon caliber, serving as markers for neuronal axons.
Mature neurons function as cellular mediators of synaptic transmission. Synaptophysin is a neuronal synaptic vesicle glycoprotein (10). Synaptophysin is responsible for targeting synaptobrevin 2/VAMP2 to synaptic vesicles, and is a critical component and marker for the presynaptic fusion complex (11). Postsynaptic Density protein 95 (PSD95) is a member of the membrane-associated guanylate kinase (MAGUK) family of proteins. These family members consist of an amino-terminal variable segment followed by three PDZ domains, an SH3 domain, and an inactive guanylate kinase (GK) domain. PSD95 is a scaffolding protein involved in the assembly and function of mature postsynaptic density complexes (12,13).
Several cellular processes are required to support dynamic functions existing in mature neurons, including protein regulation by protein ubiquitination. Ubiquitin C-terminal hydrolase L1 (UCH-L1) is a deubiquitinating enzyme that is selectively and abundantly expressed in the brain, and its activity is required for normal synaptic function (14).
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- Bonanomi, D. et al. (2007) Biochem J 404, 525-34.
- Cao, J. et al. (2005) J Cell Biol 168, 117-26.
- Chetkovich, D.M. et al. (2002) J Neurosci 22, 6415-25.
- Gong, B. et al. (2006) Cell 126, 775-88.
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