| Field | Specification |
|---|---|
| Target | |
| Alternative names | Disks large homolog 4;Postsynaptic density protein 95;PSD-95;Synapse-associated protein 90;SAP-90;SAP90;DLG4;PSD95; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human PSD95 recombinant protein (Position: H581-L724). Human PSD95 shares 100% amino acid (aa) sequence identity with both mouse and rat PSD95. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes disks large homolog 4 (gene DLG4) in human, mouse and rat samples and is validated for flow cytometry and Western blot. The predicted molecular weight is 80.5 kDa, and the supplier reports an observed band at about 100 kDa.
PSD-95 (encoded by DLG4) is the most abundant scaffold protein of the excitatory postsynaptic density. It binds NMDA receptors, AMPA receptor-associated proteins, potassium channels and signaling enzymes, anchoring them at the synapse. PSD-95 is widely used as a marker of excitatory synapses and studied in synaptogenesis, synaptic plasticity and neurological disease.
| Target | Disks large homolog 4 (gene DLG4; UniProt P78352, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.05 mg NaN3; plus stabilizers |
| Calculated MW | 80.5 kDa |
| Observed MW | 100 kDa |
| Storage | As supplied: −20 °C for up to 12 months from receipt. After reconstitution: 4 °C for up to 1 month, or aliquot and keep at −20 °C for up to 6 months. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 0.1–0.5 µg/mL (Human, Mouse, Rat) |
|---|---|
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
Samples with a confirmed band (WB): human HeLa cells, human HEL cells, rat brain tissue, mouse brain tissue.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 10% SDS-PAGE under reducing conditions, 30 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 0.5 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:5000, ECL detection.
Samples with a confirmed signal (flow cytometry): A431 cells.
Immunogen
Recombinant human PSD95 fragment (His581–Leu724), expressed in E. coli. Sequence identity with the mouse and rat orthologs: 100%.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places disks large homolog 4 in the cell membrane, postsynaptic density and synapse. Tissue expression noted by UniProt (human): Brain. The samples tested by the supplier (listed above) are a practical starting point for positive controls.
Safety
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
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