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Key Documents

HPA010122

Sigma-Aldrich

Anti-DLG4 antibody produced in rabbit

enhanced validation

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

Synonym(s):

Anti-Disks large homolog 4, Anti-PSD-95, Anti-Postsynaptic density protein 95, Anti-SAP90, Anti-Synapse-associated protein 90

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About This Item

UNSPSC Code:
12352203
Human Protein Atlas Number:
NACRES:
NA.41

biological source

rabbit

Quality Level

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

product line

Prestige Antibodies® Powered by Atlas Antibodies

form

buffered aqueous glycerol solution

species reactivity

human

enhanced validation

orthogonal RNAseq
Learn more about Antibody Enhanced Validation

technique(s)

immunohistochemistry: 1:200- 1:500

immunogen sequence

HDLREQLMNSSLGSGTASLRSNPKRGFYIRALFDYDKTKDCGFLSQALSFRFGDVLHVIDASDEEWWQARRVHSDSETDDIGFIPSKRRVERREWSRLKAKDWGSSSGSQGREDSVLSYETVTQMEVHYAR

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... DLG4(1742)

General description

DLG4 (discs large homolog 4) gene is localized to human chromosome 17p13.1. It is an abundantly present scaffolding protein. It is a multi-domain protein, which is a member of the membrane-associated guanylate kinase (MAGUK) family of proteins. This protein family is characterized by PSD-95/discs large/ZO-1 (PDZ)-Src homology 3 (SH3)-guanylate kinase domain. DLG4 is localized to the cytoplasmic ends of postsynaptic terminals.

Immunogen

Disks large homolog 4 recombinant protein epitope signature tag (PrEST)

Application

Applications in which this antibody has been used successfully, and the associated peer-reviewed papers, are given below.
Immunohistochemistry (1 paper)
Western Blotting (1 paper)

Biochem/physiol Actions

Knockout (KO) mice for DLG4 (discs large homolog 4) are characterized by aberrant synaptic plasticity and impaired spatial learning. Polymorphisms in this gene at the core promoter region and the 3′ and 5′ UTR (untranslated regions) control its expression, which in turn is associated with susceptibility to schizophrenia. It couples the activity of N-methyl-D-aspartate receptors (NMDARs) to neurotoxicity by NO (nitric oxide), and is also responsible for specificity to excitotoxic Ca2+ signaling. This protein functions in the postsynapse at excitatory neurons, where it is responsible for the clustering of glutamate receptors and organization of macromolecular complexes for signal integration. In Alzheimer′s diseases, an increase in the expression of this protein is linked with increase in β-amyloid and phosphorylated Tau proteins.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.

Linkage

Corresponding Antigen APREST71165

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Jun Zhang et al.
The Journal of biological chemistry, 286(48), 41776-41785 (2011-10-04)
Postsynaptic density-95 is a multidomain scaffolding protein that recruits glutamate receptors to postsynaptic sites and facilitates signal processing and connection to the cytoskeleton. It is the leading member of the membrane-associated guanylate kinase family of proteins, which are defined by
Geneviève Leuba et al.
Neurobiology of disease, 30(3), 408-419 (2008-04-22)
In order to understand how plasticity is related to neurodegeneration, we studied synaptic proteins with quantitative immunohistochemistry in the entorhinal cortex from Alzheimer patients and age-matched controls. We observed a significant decrease in presynaptic synaptophysin and an increase in postsynaptic
Min-Chih Cheng et al.
PloS one, 5(12), e15107-e15107 (2010-12-15)
Hypofunction of N-methyl-D-aspartate (NMDA) receptor-mediated signal transduction has been implicated in the pathophysiology of schizophrenia. Post-synaptic density protein 95 (PSD95) plays a critical role in regulating the trafficking and activity of the NMDA receptor and altered expression of the PSD95
R Sattler et al.
Science (New York, N.Y.), 284(5421), 1845-1848 (1999-06-12)
The efficiency with which N-methyl-D-aspartate receptors (NMDARs) trigger intracellular signaling pathways governs neuronal plasticity, development, senescence, and disease. In cultured cortical neurons, suppressing the expression of the NMDAR scaffolding protein PSD-95 (postsynaptic density-95) selectively attenuated excitotoxicity triggered via NMDARs, but
C Fourie et al.
Journal of neurodegenerative diseases, 2014, 938530-938530 (2014-01-01)
NMDA and AMPA-type glutamate receptors and their bound membrane-associated guanylate kinases (MAGUKs) are critical for synapse development and plasticity. We hypothesised that these proteins may play a role in the changes in synapse function that occur in Huntington's disease (HD)

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