Product: PSD95 Antibody
Catalog: AF6884
Description: Rabbit polyclonal antibody to PSD95
Application: WB
Reactivity: Human, Mouse, Rat
Mol.Wt.: 90~100kDa; 80kD(Calculated).
Uniprot: P78352
RRID: AB_2847607

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Product Info

Source:
Rabbit
Application:
WB 1:500-1:2000
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human,Mouse,Rat
Clonality:
Polyclonal
Specificity:
PSD95 Antibody detects endogenous levels of total PSD95.
RRID:
AB_2847607
Cite Format: Affinity Biosciences Cat# AF6884, RRID:AB_2847607.
Conjugate:
Unconjugated.
Purification:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Storage:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

Discs large homolog 4; Disks large homolog 4; DLG 4; Dlg4; DLG4_HUMAN; FLJ97752; FLJ98574; Human post synaptic density protein 95; Post synaptic density protein 95; Postsynaptic density protein 95; PSD 95; PSD-95; PSD95; SAP 90; SAP-90; SAP90; Synapse associated protein 90; Synapse-associated protein 90; Tax interaction protein 15;

Immunogens

Immunogen:

A synthesized peptide derived from human PSD95.

Uniprot:
Gene(ID):
Expression:
Sequence:
MDCLCIVTTKKYRYQDEDTPPLEHSPAHLPNQANSPPVIVNTDTLEAPGYELQVNGTEGEMEYEEITLERGNSGLGFSIAGGTDNPHIGDDPSIFITKIIPGGAAAQDGRLRVNDSILFVNEVDVREVTHSAAVEALKEAGSIVRLYVMRRKPPAEKVMEIKLIKGPKGLGFSIAGGVGNQHIPGDNSIYVTKIIEGGAAHKDGRLQIGDKILAVNSVGLEDVMHEDAVAALKNTYDVVYLKVAKPSNAYLSDSYAPPDITTSYSQHLDNEISHSSYLGTDYPTAMTPTSPRRYSPVAKDLLGEEDIPREPRRIVIHRGSTGLGFNIVGGEDGEGIFISFILAGGPADLSGELRKGDQILSVNGVDLRNASHEQAAIALKNAGQTVTIIAQYKPEEYSRFEAKIHDLREQLMNSSLGSGTASLRSNPKRGFYIRALFDYDKTKDCGFLSQALSFRFGDVLHVIDASDEEWWQARRVHSDSETDDIGFIPSKRRVERREWSRLKAKDWGSSSGSQGREDSVLSYETVTQMEVHYARPIIILGPTKDRANDDLLSEFPDKFGSCVPHTTRPKREYEIDGRDYHFVSSREKMEKDIQAHKFIEAGQYNSHLYGTSVQSVREVAEQGKHCILDVSANAVRRLQAAHLHPIAIFIRPRSLENVLEINKRITEEQARKAFDRATKLEQEFTECFSAIVEGDSFEEIYHKVKRVIEDLSGPYIWVPARERL

PTMs - P78352 As Substrate

Site PTM Type Enzyme
T8 Phosphorylation
T19 Phosphorylation
S73 Phosphorylation
S142 Phosphorylation
Y147 Phosphorylation
T192 Phosphorylation
Y236 Phosphorylation
Y240 Phosphorylation
T287 Phosphorylation P53778 (MAPK12) , O15264 (MAPK13) , P28482 (MAPK1)
S290 Phosphorylation P53778 (MAPK12)
S295 Phosphorylation P45983 (MAPK8)
Y397 Phosphorylation
K403 Ubiquitination
S425 Phosphorylation
Y523 Phosphorylation P06241 (FYN) , P12931 (SRC)
S561 Phosphorylation Q7KZI7 (MARK2)
Y573 Phosphorylation
Y609 Phosphorylation
Y701 Phosphorylation

Research Backgrounds

Function:

Interacts with the cytoplasmic tail of NMDA receptor subunits and shaker-type potassium channels. Required for synaptic plasticity associated with NMDA receptor signaling. Overexpression or depletion of DLG4 changes the ratio of excitatory to inhibitory synapses in hippocampal neurons. May reduce the amplitude of ASIC3 acid-evoked currents by retaining the channel intracellularly. May regulate the intracellular trafficking of ADR1B. Also regulates AMPA-type glutamate receptor (AMPAR) immobilization at postsynaptic density keeping the channels in an activated state in the presence of glutamate and preventing synaptic depression.

PTMs:

Palmitoylated. Palmitoylation is required for targeting to postsynaptic density, plasma membrane and synapses (By similarity). Palmitoylation may play a role in glutamate receptor GRIA1 synapse clustering (By similarity). Depalmitoylated by ABHD17A and ABHD17B and to a lesser extent by ABHD17C, ABHD12, ABHD13, LYPLA1 and LYPLA2. Undergoes rapid synaptic palmitoylation/depalmitoylation cycles during neuronal development which slow down in mature neurons (By similarity).

Ubiquitinated by MDM2 in response to NMDA receptor activation, leading to proteasome-mediated degradation of DLG4 which is required for AMPA receptor endocytosis.

Subcellular Location:

Cell membrane>Lipid-anchor>Cytoplasmic side. Cell junction>Synapse>Postsynaptic density. Cell junction>Synapse. Cytoplasm. Cell projection>Axon. Cell projection>Dendritic spine. Cell projection>Dendrite. Cell junction>Synapse>Presynapse.
Note: High levels in postsynaptic density of neurons in the forebrain. Also in presynaptic region of inhibitory synapses formed by cerebellar basket cells on axon hillocks of Purkinje cells.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Tissue Specificity:

Brain.

Subunit Structure:

Interacts through its PDZ domains with ANO2 and NETO1 (By similarity). Interacts through its first two PDZ domains with GRIN2A, GRIN2B, GRIN2C, GRIN2D (By similarity). Interacts with ASIC3 (By similarity). Interacts with SEMA4C (By similarity). Interacts with CXADR (By similarity). Interacts with KCND2 (By similarity). Interacts with SYNGAP1 (By similarity). Interacts with LRRC4 and LRRC4B (By similarity). Interacts with ERBB4. Interacts with KCNA1, KCNA2, KCNA3 and KCNA4. Interacts through its first PDZ domain with GRIK2, KCNA4 and CRIPT. Interacts through its second PDZ domain with the PDZ domain of NOS1 or the C-terminus of CAPON (By similarity). Interacts through its third PDZ domain with NLGN1 and CRIPT, and probably with NLGN2 and NLGN3. Interacts through its guanylate kinase-like domain with KIF13B. Interacts through its guanylate kinase-like domain with DLGAP1/GKAP, DLGAP2, DLGAP3, DLGAP4, MAP1A, BEGAIN and SIPA1L1 (By similarity). Isoform 2 interacts through an L27 domain with HGS/HRS and the first L27 domain of CASK. Interacts with ADR1B and ANKS1B (By similarity). May interact with HTR2A (By similarity). Interacts with ADAM22. Interacts with KLHL17 and LGI1 (By similarity). Interacts with FRMPD4 (via C-terminus). Interacts with LRFN1, LRFN2 and LRFN4. Interacts (via N-terminal tandem pair of PDZ domains) with GPER1 (via C-terminus tail motif); the interaction is direct and induces the increase of GPER1 protein levels residing at the plasma membrane surface in a estradiol-independent manner (By similarity). Interacts (via N-terminus tandem pair of PDZ domains) with NOS1 (via N-terminal domain) (By similarity). Interacts with SHANK3 (By similarity). Interacts with KCNJ4 (By similarity). Interacts with GPR85. Interacts with CACNG2 and MPP2 (via the SH3-Guanylate kinase-like sub-module) (By similarity). Interacts with ADGRB1. Found in a complex with PRR7 and GRIN1 (By similarity). Interacts (via PDZ3 domain and to lesser degree via PDZ2 domain) with PRR7 (By similarity). Component of the postsynaptic hippocampal AMPA-type glutamate receptor (AMPAR) complex, at least composed of pore forming AMPAR subunits GRIA1, GRIA2 and GRIA3 and AMPAR auxiliary proteins SHISA6 and SHISA7. Interacts (via its first two PDZ domains) with SHISA6 and SHISA7 (via PDZ-binding motif); the interaction is direct (By similarity). Interacts with RPH3A and GRIN2A; this ternary complex regulates NMDA receptor composition at postsynaptic membranes (By similarity). Interacts with ABR and BCR.

Family&Domains:

The PDZ domain 3 mediates interaction with ADR1B.

The L27 domain near the N-terminus of isoform 2 is required for HGS/HRS-dependent targeting to postsynaptic density.

Belongs to the MAGUK family.

Research Fields

· Environmental Information Processing > Signal transduction > Hippo signaling pathway.   (View pathway)

· Human Diseases > Neurodegenerative diseases > Huntington's disease.

· Human Diseases > Substance dependence > Cocaine addiction.

· Organismal Systems > Nervous system > Glutamatergic synapse.

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