10YC | pdb_000010yc

Nucleosome containing a nick at SHL-4

• PDB DOI: https://doi.org/10.2210/pdb10YC/pdb
• NAKB: 10YC
• EM Map EMD-75524: EMDB EMDataResource

• Classification: DNA BINDING PROTEIN/DNA
• Organism(s): Homo sapiens, synthetic construct
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2026-02-12 Released: 2026-03-18 
• Deposition Author(s): Boesch, D.J., Weaver, T.M.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Molecular basis of nick ligation in the nucleosome by DNA Ligase III alpha

Boesch, D.J., Martin, N.I., Kontor, C.A., Nguyen, A.G., Tomkinson, A.E., Van Houten, B., Gillet, N., Bignon, E., Whitaker, A.M., Weaver, T.M.

(2026) Nat Commun 

• DOI: https://doi.org/10.1038/s41467-026-77207-7

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 8-mer - A2B2C2D2 Pseudo Symmetry: Cyclic - C2  (Explore in 3D)
Pseudo Stoichiometry: Hetero 8-mer - A6B2 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 199.34 kDa 
• Atom Count: 11,998 
• Modeled Residue Count: 1,047 
• Deposited Residue Count: 1,276 
• Unique protein chains: 4
• Unique nucleic acid chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone H3.2	A, E	135	Homo sapiens	Mutation(s): 1  Gene Names: H3C15, HIST2H3A, H3C14, H3F2, H3FM, HIST2H3C, H3C13, HIST2H3D
UniProt & NIH Common Fund Data Resources
Find proteins for Q71DI3 (Homo sapiens) Explore Q71DI3  Go to UniProtKB:  Q71DI3
PHAROS:  Q71DI3 GTEx:  ENSG00000183598 ENSG00000203811 ENSG00000203852

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone H4	B, F	102	Homo sapiens	Mutation(s): 0  Gene Names:  H4C1, H4/A, H4FA, HIST1H4A, H4C2, H4/I, H4FI, HIST1H4B, H4C3, H4/G, H4FG, HIST1H4C, H4C4, H4/B, H4FB, HIST1H4D, H4C5, H4/J, H4FJ, HIST1H4E, H4C6, H4/C, H4FC, HIST1H4F, H4C8, H4/H, H4FH, HIST1H4H, H4C9, H4/M, H4FM, HIST1H4I, H4C11, H4/E, H4FE, HIST1H4J, H4C12, H4/D, H4FD, HIST1H4K, H4C13, H4/K, H4FK, HIST1H4L, H4C14, H4/N, H4F2, H4FN, HIST2H4, HIST2H4A, H4C15, H4/O, H4FO, HIST2H4B, H4-16, HIST4H4
UniProt & NIH Common Fund Data Resources
Find proteins for P62805 (Homo sapiens) Explore P62805  Go to UniProtKB:  P62805
PHAROS:  P62805 GTEx:  ENSG00000274618 ENSG00000197238 ENSG00000197837 ENSG00000158406 ENSG00000278705 ENSG00000197061 ENSG00000270882 ENSG00000270276 ENSG00000273542 ENSG00000277157 ENSG00000276966 ENSG00000276180 ENSG00000278637 ENSG00000275126

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone H2A type 1	C, G	129	Homo sapiens	Mutation(s): 0  Gene Names:  H2AC11, H2AFP, HIST1H2AG, H2AC13, H2AFC, HIST1H2AI, H2AC15, H2AFD, HIST1H2AK, H2AC16, H2AFI, HIST1H2AL, H2AC17, H2AFN, HIST1H2AM
UniProt & NIH Common Fund Data Resources
Find proteins for P0C0S8 (Homo sapiens) Explore P0C0S8  Go to UniProtKB:  P0C0S8
PHAROS:  P0C0S8 GTEx:  ENSG00000196747 ENSG00000196787 ENSG00000278677 ENSG00000276903

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Histone H2B type 1-C/E/F/G/I	D, H	125	Homo sapiens	Mutation(s): 0  Gene Names:  H2BC4, H2BFL, HIST1H2BC, H2BC6, H2BFH, HIST1H2BE, H2BC7, H2BFG, HIST1H2BF, H2BC8, H2BFA, HIST1H2BG, H2BC10, H2BFK, HIST1H2BI
UniProt & NIH Common Fund Data Resources
Find proteins for P62807 (Homo sapiens) Explore P62807  Go to UniProtKB:  P62807
PHAROS:  P62807 GTEx:  ENSG00000180596 ENSG00000277224 ENSG00000278588 ENSG00000273802 ENSG00000274290

Entity ID: 5
Molecule	Chains	Length	Organism	Image
601 I strand (non-damaged strand)	I	147	synthetic construct

Entity ID: 6
Molecule	Chains	Length	Organism	Image
601 J strand (damaged strand 1)	J	35	synthetic construct

Entity ID: 7
Molecule	Chains	Length	Organism	Image
601 K strand (damaged strand 2)	K	112	synthetic construct

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-03-18 
Deposition Author(s): Boesch, D.J., Weaver, T.M.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2026-03-18
  Type: Initial release
  
• Version 1.1: 2026-09-30
  Changes: Data collection, Database references