4DXR Structural Protein date Feb 28, 2012
title Human Sun2-Kash1 Complex
authors B.Sosa, T.U.Schwartz
compound source
Molecule: Sun Domain-Containing Protein 2
Chain: A
Fragment: Sun Domain (Unp Residues 522-717)
Synonym: Protein Unc-84 Homolog B, Rab5-Interacting Protein Sad1unc-84 Protein-Like 2;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Sun2, Frigg, Kiaa0668, Rab5ip, Unc84b
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Nesprin-1
Chain: B
Fragment: Unp Residues 8769-8797
Synonym: Enaptin, Myocyte Nuclear Envelope Protein 1, Myne- Envelope Spectrin Repeat Protein 1, Synaptic Nuclear Envelo 1, Syne-1;
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Syne1, C6orf98, Kiaa0796, Kiaa1262, Kiaa1756, Myne1
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: H 3 2
R_factor 0.171 R_Free 0.227
length a length b length c angle alpha angle beta angle gamma
79.641 79.641 256.409 90.00 90.00 120.00
method X-Ray Diffractionresolution 2.32 Å
ligand DMU, K enzyme


Primary referenceLINC Complexes Form by Binding of Three KASH Peptides to Domain Interfaces of Trimeric SUN Proteins., Sosa BA, Rothballer A, Kutay U, Schwartz TU, Cell. 2012 May 25;149(5):1035-47. PMID:22632968
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (45 Kb) [Save to disk]
  • Biological Unit Coordinates (4dxr.pdb1.gz) 117 Kb
  • LPC: Ligand-Protein Contacts for 4DXR
  • CSU: Contacts of Structural Units for 4DXR
  • Structure Factors (114 Kb)
  • Retrieve 4DXR in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4DXR from S2C, [Save to disk]
  • Re-refined 4dxr structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 4DXR in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 4DXR
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 4DXR, from MSDmotif at EBI
  • Fold representative 4dxr from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4dxr] [4dxr_A] [4dxr_B]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Domain found in 4DXR: [KASH ] by SMART
  • Other resources with information on 4DXR
  • Community annotation for 4DXR at PDBWiki (http://pdbwiki.org)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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