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Products

Product Name
PSD95 Antibody
Catalog #
SMC-356D
Package size
100ug
Price
$285.00 USD
Bulk Quote
Type
Monoclonal
Conjugate
N/A
Datasheet
SMC 356 PSD95 Scaffold
Description
Anti-PSD95
Research Area
Neuroscience, Organelle Markers, Scaffolds
Alternative Names
DLG4, SAP90
Clone Number
S28-43
Host Species
Mouse
Isotype
IgG2a
Immunogen
Fusion protein amino acids 77-200 of human PSD95/SAP90
Applications
WB, IHC, Immuno-gold EM, IP, IF
Species Reactivity
Mouse, Rat, Human
Accession Number
NP_001122299.1
Gene ID
1742
SwissProt
P78352
Background Info
Detects ~95-110kDa (varies with cell background due to phosphorylation)
Recommended Dilutions
1:1000 (WB)
Form
Protein G Purified
Storage Buffer
PBS pH7.4, 50% glycerol, 0.09% sodium azide
Concentration
1mg/mL
Certificate of Analysis
1 μg/mL of SMC-356 was sufficient for detection of PSD-95 in 20 μg of rat brain tissue extract by ECL immunoblot analysis using Goat anti-mouse IgG:HRP as the secondary antibody.
Storage Temp
-20°C
Shipping Temp
Blue Ice or 4°C

This antibody is available conjugated to several dyes. Please select one of the conjugates from the lists below:

ATTO Conjugates:

ATTO-Conjugates.pdf

Enzyme & Fluorescent Conjugates:

Enzyme-Fluorescent-Conjugate.pdf

 IF of PSD95 in cultures of dissociated hippocampal neurons. Cultures were grown and labeled with antibodies against the indicated proteins. A neuron double stained for PSD95.


Immunolabelling of PSD95 using a dilution of SMC-356 was used to stain mouse cerebellum sections.  Specific labelling of the puncta below the Purkinje cells of the cerebellum is seen in this image.  
Courtesy of Dr. Patrick Nahirney, University of Victoria, BC Canada.
Research Background
Postsynaptic Density protein 95 (PSD95), also known as Synapse associated protein 90kDa, is a member of the membrane-associated guanylate kinase (MAGUK) family of proteins. PSD95 is a scaffolding protein and is involved in the assembly and function of the postsynaptic density complex (1). These family members consist of an N-terminal variable segment followed by three amino-terminal PDZ domains, an upstream SH3 domain and an inactive carboxyl-terminal guanylate kinase (GK) domain. The first and second PDZ domain localize NMDA receptors and K+ channels to synapses, and the third binds to
neuroligins which are neuronal cell adhesion molecules that interact with b-neurexins and form intercellular junctions. PSD-95 also binds to neuronal nitric oxide synthase, possibly through interactions between PDZ domains present on both proteins (2). Thus different PDZ domains of PSD-95 might be specialized for distinct functions (3, 4).
PSD95 participates in synaptic targeting of AMPA receptors through an indirect manner involving Stargazin and related transmembrane AMPA receptor regulatory proteins (TARPs) (5). The protein is implicated in experience dependent plasticity and plays an indispensable role in learning (6). Mutations in PSD95 are associated with autism (7).
References
1. Chetkovich D.M., Bunn R.C., Kuo S.H., Kawasaki Y., Kohwi M., and Bredt D.S. (2002) J Neurosci. 22(15): 6415-25.
2. Cao J., Viholainen J.I., Dart C., Warwick H.K., Levland M.L. and Courtney M.J. (2005) J Cell Biol. 168(1): 117-26.
3. Kennedy M. (1997) Trends in Neurosci. 6: 264-268.
4. Irie M. et al. (1997) Science 277(5331): 1511-5.
5. Cai C. et al. (2006) J Biol Chem. 281: 4267-73.
6. Yao W.D. et al. (2004) Neuron 41: 625-38.
7. Cline H. (2005) Curr Biol. 15: R203-5.
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