3NQJ Dna Binding Protein date Jun 29, 2010
title Crystal Structure Of (Cenp-Ah4)2 Heterotetramer
authors N.Sekulic, B.E.Black
compound source
Molecule: Histone H3-Like Centromeric Protein A
Chain: A
Fragment: Unp Residues 60-140
Synonym: Centromere Protein A, Cenp-A, Centromere Autoantig
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Cenpa
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Histone H4
Chain: B
Fragment: Unp Residues 21-103
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Hist1h4a, H4a, H4fa
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 65 2 2
R_factor 0.180 R_Free 0.241
length a length b length c angle alpha angle beta angle gamma
62.869 62.869 159.512 90.00 90.00 120.00
method X-Ray Diffractionresolution 2.10 Å
ligand PO4 enzyme


Primary referenceThe structure of (CENP-A-H4)(2) reveals physical features that mark centromeres., Sekulic N, Bassett EA, Rogers DJ, Black BE, Nature. 2010 Aug 25. PMID:20739937
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (59 Kb) [Save to disk]
  • Biological Unit Coordinates (3nqj.pdb1.gz) 104 Kb
  • LPC: Ligand-Protein Contacts for 3NQJ
  • CSU: Contacts of Structural Units for 3NQJ
  • Structure Factors (157 Kb)
  • Retrieve 3NQJ in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3NQJ from S2C, [Save to disk]
  • Re-refined 3nqj structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3NQJ 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 3NQJ
  • 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 3NQJ, from MSDmotif at EBI
  • Fold representative 3nqj from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3nqj] [3nqj_B] [3nqj_A]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Domains found in 3NQJ: [H3] [H4 ] by SMART
  • Other resources with information on 3NQJ
  • Community annotation for 3NQJ at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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