Disks large homolog 4 - P31016 (DLG4_RAT)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for P31016: 34
 
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. Interacts with KCNJ4 (PubMed:11997254). Interacts through its first two PDZ domains with GRIN2A, GRIN2B, GRIN2C, GRIN2D, ASIC3, certain splice forms of GRIN1, KCND2, CXADR, SYNGAP1, KCNA1, KCNA2, KCNA3, KCNA4, ERBB4, LRRC4; LRRC4B and SEMA4C. 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. Interacts through its third PDZ domain with NLGN1 and CRIPT, and probably with NLGN2 and NLGN3. Interacts through its guanylate kinase-like domain with DLGAP1/GKAP, DLGAP2, DLGAP3, DLGAP4, MAP1A, BEGAIN, SIPA1L1 and KIF13B (PubMed:9115257, PubMed:9756850). Isoform 2 interacts through an L27 domain with HGS/HRS and the first L27 domain of CASK. Interacts with ADR1B, ANKS1B and PRR7 (PubMed:15629447). May interact with HTR2A. Interacts with ADAM22, KLHL17 and LGI1. Interacts with FRMPD4 (via C-terminus) (PubMed:19118189). Interacts with LRFN1, LRFN2 and LRFN4, but not with LRFN3 nor LRFN5. 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 (PubMed:23300088). Interacts (via N-terminus tandem pair of PDZ domains) with NOS1 (via N-terminal domain) (PubMed:23300088). Interacts with SHANK3. Interacts with GPR85. 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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Validation Track

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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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