3I4W: Third PDZ domain of PSD-95

Crystal Structure of the third PDZ domain of PSD-95. Determined by X-ray diffraction at 1.35 Å resolution. Released 7 Apr 2010.

Method
X-ray diffraction
Resolution
1.35 Å
Organism
Homo sapiens
Chains
4
Atoms
3,241
Mol. weight
44.87 kDa
Released
7 Apr 2010

Explore 3I4W in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

3I4W contains 12 α-helices and 32 β-strands across 4 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chains A, B, C and D: 3 helices, 8 β-strands

ElementResiduesLengthSheet
β-strand312-31761
β-strand31912
β-strand32212
β-strand325-33171
β-strand334-34181
α-helix346-3505
β-strand357-36261
β-strand365-36621
α-helix372-3809
β-strand385-39281
α-helix394-4018

Molecules and chains

MoleculeChainsTypeLengthOrganismUniProt
Disks large homolog 4A, B, C, Dprotein104Homo sapiensP78352 (AlphaFold model)
Sequence of entity 1 (A, B, C, D), FASTA
>3I4W_1 Disks large homolog 4 (chains A, B, C, D)
MGLGEEDIPREPRRIVIHRGSTGLGFNIVGGENGEGIFISFILAGGPADLSGELRKGDQI
LSVNGVDLRNASHEQAAIALKNAGQTVTIIAQYKPEEYSRFEAK

Primary citation

Novel conformational aspects of the third PDZ domain of the neuronal post-synaptic density-95 protein revealed from two 1.4A X-ray structures. Camara-Artigas, A., Murciano-Calles, J., Gavira, J.A. et al. J Struct Biol (2010) 170:565-569. DOI 10.1016/j.jsb.2010.03.005 · PubMed

Other PDB entries of the same protein (UniProt P78352 (AlphaFold model), which also has an AlphaFold model), best resolution first:

Browse structure collections

About this viewer

MolViewer shows 3I4W directly in your browser with nothing to install. Switch between cartoon, ball-and-stick, spacefill and surface views, color by chain, secondary structure or B-factor, measure distances, angles and dihedrals, and share or embed the view.