Summary

Name DLG4
Full Name Disks large homolog 4
Synonyms Postsynaptic density protein 95, PSD-95, Synapse-associated protein 90, SAP-90, SAP90 | PSD95
Primary ID P78352
Links - -
Type protein
Relations 55
Pathways Glutamatergic synapse
Function Postsynaptic scaffolding protein that plays a critical role in synaptogenesis and synaptic plasticity by providing a platform for the postsynaptic clustering of crucial synaptic proteins. 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.

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▶Modifications Tables

Relations

Regulator Mechanism target score ℹ
+ up-regulates activity img/direct-activation.png palmitoylation DLG4 0.376
Publications: 2 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation DLG4 0.67
Publications: 3 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation DLG4 0.267
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation DLG4 0.552
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png phosphorylation DLG4 0.549
Publications: 1 Organism: Homo Sapiens
Tissue: Brain
+ up-regulates activity img/direct-activation.png phosphorylation DLG4 0.435
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding NOS1 0.749
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png relocalization DLG4 0.767
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.368
Publications: 1 Organism: Mus Musculus
+ up-regulates activity img/direct-activation.png binding DLG4 0.384
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.753
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding LRFN2 0.763
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity img/direct-activation.png post transcriptional regulation DLG4 0.268
Publications: 1 Organism: Mus Musculus
Tissue: Brain
+ down-regulates quantity by destabilization img/direct_inhibition.png ubiquitination DLG4 0.346
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.361
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.76
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity img/direct-activation.png binding Nax cation channel complex, SCN1B-SCN2B variant 0.307
Publications: 1 Organism: Homo Sapiens
+ form complex img/form-complex.png binding Scribble_complex_DLG4-LLGL2_variant 0.491
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png relocalization DLGAP1 0.934
Publications: 1 Organism: Homo Sapiens
Pathways:Glutamatergic synapse
+ up-regulates activity img/direct-activation.png relocalization GRIN2B 0.833
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding TANC1 0.583
Publications: 1 Organism: Rattus Norvegicus
Tissue: Brain
+ up-regulates quantity img/direct-activation.png phosphorylation DLG4 0.282
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/indirect-activation.png Synaptic_plasticity 0.7
Publications: 1 Organism: Homo Sapiens
Pathways:Glutamatergic synapse
+ up-regulates activity img/direct-activation.png binding DLG4 0.366
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png relocalization DLG4 0.788
Publications: 1 Organism: Homo Sapiens
Pathways:Glutamatergic synapse
+ up-regulates img/indirect-activation.png Postsynaptic density assembly 0.7
Publications: 1 Organism: Homo Sapiens
Pathways:Glutamatergic synapse
+ up-regulates quantity img/direct-activation.png binding Nax cation channel complex, SCN3B-SCN4B variant 0.256
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity img/direct-activation.png post transcriptional regulation DLG4 0.466
Publications: 1 Organism: Mus Musculus
Tissue: Brain
+ up-regulates activity img/direct-activation.png binding DLG4 0.934
Publications: 1 Organism: Homo Sapiens
Pathways:Glutamatergic synapse
+ up-regulates activity img/direct-activation.png relocalization DLG4 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png relocalization DLG4 0.772
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.2
Publications: 2 Organism: Homo Sapiens
Pathways:Glutamatergic synapse
+ up-regulates activity img/direct-activation.png binding DLG4 0.769
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png relocalization GRIN2A 0.821
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding LRFN1 0.787
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png relocalization DLG4 0.767
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.811
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.419
Publications: 1 Organism: Homo Sapiens
+ form complex img/form-complex.png binding Scribble_complex_DLG4-LLGL1_variant 0.495
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.309
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.582
Publications: 1 Organism: Homo Sapiens
Pathways:Glutamatergic synapse
+ up-regulates activity img/direct-activation.png binding DLG4 0.716
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png relocalization DLG4 0.464
Publications: 1 Organism: Mus Musculus
Tissue: Brain
+ up-regulates quantity img/direct-activation.png binding DLG4 0.2
Publications: 1 Organism: Mus Musculus
Tissue: Brain
+ up-regulates activity img/direct-activation.png binding DLG4 0.809
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity img/direct-activation.png binding Nax cation channel complex SCN2B-SCN3B variant 0.307
Publications: 1 Organism: Homo Sapiens
+ up-regulates quantity img/direct-activation.png binding Nax cation channel complex, SCN1B-SCN4B variant 0.256
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.818
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png binding DLG4 0.442
Publications: 1 Organism: Homo Sapiens
Pathways:Glutamatergic synapse
+ up-regulates activity img/direct-activation.png binding TANC2 0.308
Publications: 1 Organism: Rattus Norvegicus
Tissue: Brain
+ up-regulates activity img/direct-activation.png binding DLG4 0.7
Publications: 1 Organism: Homo Sapiens