4X23 image
Deposition Date 2014-11-25
Release Date 2014-12-10
Last Version Date 2023-09-27
Entry Detail
PDB ID:
4X23
Keywords:
structural protein/dna
Title:
CRYSTAL STRUCTURE OF CENP-C IN COMPLEX WITH THE NUCLEOSOME CORE PARTICLE
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Drosophila melanogaster (Taxon ID: 7227)
Rattus norvegicus (Taxon ID: 10116)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
3.50 Å
R-Value Free:
0.28
R-Value Work:
0.23
R-Value Observed:
0.23
Space Group:
P 21 21 21
4X23 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Histone H3
Gene (Uniprot):His3, His3:CG31613, His3:CG33803, His3:CG33806, His3:CG33809, His3:CG33812, His3:CG33815, His3:CG33818, His3:CG33821, His3:CG33824, His3:CG33827, His3:CG33830, His3:CG33833, His3:CG33836, His3:CG33839, His3:CG33842, His3:CG33845, His3:CG33848, His3:CG33851, His3:CG33854, His3:CG33857, His3:CG33860, His3:CG33863, His3:CG33866
Chain IDs:C (auth: A), G (auth: E), O (auth: K), S (auth: O)
Chain Length:98
Number of Molecules:4
Biological Source:Drosophila melanogaster
UniProt ID:P02299 Pfam ID:PF00125
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Histone H4
Gene (Uniprot):His4, His4r, His4:CG31611, His4:CG33869, His4:CG33871, His4:CG33873, His4:CG33875, His4:CG33877, His4:CG33879, His4:CG33881, His4:CG33883, His4:CG33885, His4:CG33887, His4:CG33889, His4:CG33891, His4:CG33893, His4:CG33895, His4:CG33897, His4:CG33899, His4:CG33901, His4:CG33903, His4:CG33905, His4:CG33907, His4:CG33909
Chain IDs:D (auth: B), H (auth: F), P (auth: L), T (auth: P)
Chain Length:79
Number of Molecules:4
Biological Source:Drosophila melanogaster
UniProt ID:P84040 Pfam ID:PF15511
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Histone H2A
Gene (Uniprot):His2A, His2A:CG31618, His2A:CG33808, His2A:CG33814, His2A:CG33817, His2A:CG33820, His2A:CG33823, His2A:CG33826, His2A:CG33829, His2A:CG33832, His2A:CG33835, His2A:CG33838, His2A:CG33841, His2A:CG33844, His2A:CG33847, His2A:CG33850, His2A:CG33862, His2A:CG33865
Chain IDs:E (auth: C), I (auth: G), Q (auth: M), U (auth: Q)
Chain Length:102
Number of Molecules:4
Biological Source:Drosophila melanogaster
UniProt ID:P84051 Pfam ID:PF00125, PF16211
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Histone H2B
Gene (Uniprot):His2B, His2B:CG17949, His2B:CG33868, His2B:CG33870, His2B:CG33872, His2B:CG33874, His2B:CG33876, His2B:CG33878, His2B:CG33880, His2B:CG33882, His2B:CG33884, His2B:CG33886, His2B:CG33888, His2B:CG33890, His2B:CG33892, His2B:CG33894, His2B:CG33896, His2B:CG33898, His2B:CG33900, His2B:CG33902, His2B:CG33904, His2B:CG33906, His2B:CG33908, His2B:CG33910
Chain IDs:F (auth: D), J (auth: H), R (auth: N), V (auth: R)
Chain Length:90
Number of Molecules:4
Biological Source:Drosophila melanogaster
UniProt ID:P02283 Pfam ID:PF00125
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (147-MER)
Chain IDs:A (auth: I), M (auth: S)
Chain Length:147
Number of Molecules:2
Biological Source:Homo sapiens
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (147-MER)
Chain IDs:B (auth: J), N (auth: T)
Chain Length:147
Number of Molecules:2
Biological Source:Homo sapiens
Protein Blast
Polymer Type:polypeptide(L)
Molecule:CENP-C
Gene (Uniprot):Cenpc
Chain IDs:K (auth: V), L (auth: U), W (auth: X), X (auth: W)
Chain Length:25
Number of Molecules:4
Biological Source:Rattus norvegicus
UniProt ID:Q66LH7
Ligand Molecules
NA
Primary Citation
A conserved mechanism for centromeric nucleosome recognition by centromere protein CENP-C.
Science 340 1110 1113 (2013)
PMID: 23723239 DOI: 10.1126/science.1235532

Abstact

Chromosome segregation during mitosis requires assembly of the kinetochore complex at the centromere. Kinetochore assembly depends on specific recognition of the histone variant CENP-A in the centromeric nucleosome by centromere protein C (CENP-C). We have defined the determinants of this recognition mechanism and discovered that CENP-C binds a hydrophobic region in the CENP-A tail and docks onto the acidic patch of histone H2A and H2B. We further found that the more broadly conserved CENP-C motif uses the same mechanism for CENP-A nucleosome recognition. Our findings reveal a conserved mechanism for protein recruitment to centromeres and a histone recognition mode whereby a disordered peptide binds the histone tail through hydrophobic interactions facilitated by nucleosome docking.

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Primary Citation of related structures
4INM