Disks large homolog 4 - P78352 (DLG4_HUMAN)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for P78352: 7
 
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. UniProt
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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 (PubMed:10725395). Interacts with KCNA1, KCNA2, KCNA3 and KCNA4 (PubMed:7477295). Interacts through its first PDZ domain with GRIK2, KCNA4 and CRIPT (PubMed:11744724). 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 (PubMed:9278515). Interacts through its guanylate kinase-like domain with KIF13B (PubMed:10859302). 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 (PubMed:12151521). Interacts with ADR1B and ANKS1B (By similarity). May interact with HTR2A (By similarity). Interacts with ADAM22, KLHL17 and LGI1 (By similarity). Interacts with FRMPD4 (via C-terminus) (PubMed:19118189). Interacts with LRFN1, LRFN2 and LRFN4 (PubMed:16630835). 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 (PubMed:25780553). Interacts with CACNG2 and MPP2 (via the SH3-Guanylate kinase-like sub-module) (By similarity). Interacts with ADGRB1 (PubMed:23782696). Found in a complex with PRR7 and GRIN1 (By similarity). Interacts (via PDZ3 domain and to lesser degree via PDZ2 domain) with PRR7. UniProt
Domain
The L27 domain near the N-terminus of isoform 2 is required for HGS/HRS-dependent targeting to postsynaptic density. UniProt
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Data in green originates from UniProtKB  
Variation data (sourced from UniProt) shows non-genetic variation from the ExPASy   and dbSNP   websites.
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
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The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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