Biological Assembly 1  

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 48-mer - A12B12C12D12 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Homo 48-mer -A48 

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

Biological Assembly Evidence: SAXS

Macromolecule Content

• Total Structure Weight: 1366005.50 
• Atom Count: 82122 
• Residue Count: 8328 
• Unique protein chains: 4
• Unique nucleic acid chains: 2

6HKT

Structure of an H1-bound 6-nucleosome array

• DOI: 10.2210/pdb6HKT/pdb

• Classification: DNA BINDING PROTEIN
• Organism(s): Homo sapiens, synthetic construct
• Expression System: Escherichia coli BL21(DE3)


• Deposited: 2018-09-08 Released: 2018-10-31 
• Deposition Author(s): Garcia-Saez, I., Dimitrov, S., Petosa, C.
• Funding Organization(s): French National Research Agency 

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 9.7 Å
• R-Value Free: 0.286 
• R-Value Work: 0.254 

Literature

Structure of an H1-Bound 6-Nucleosome Array Reveals an Untwisted Two-Start Chromatin Fiber Conformation.

Garcia-Saez, I., Menoni, H., Boopathi, R., Shukla, M.S., Soueidan, L., Noirclerc-Savoye, M., Le Roy, A., Skoufias, D.A., Bednar, J., Hamiche, A., Angelov, D., Petosa, C., Dimitrov, S.

(2018) Mol. Cell 72: 902-915.e7

• PubMed: 30392928 

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Histone H3.1	A, E, a, e, K, O, k, o, U, Y, u, y	139	Homo sapiens	Mutation(s): 0  Gene Names: HIST1H3A, HIST1H3B, HIST1H3C, HIST1H3D, HIST1H3E, HIST1H3F, HIST1H3G, HIST1H3H, HIST1H3I, HIST1H3J (H3FA, H3FL, H3FC, H3FB, H3FD, H3FI, H3FH, H3FK, H3FF, H3FJ)
Find proteins for P68431 (Homo sapiens) Go to Gene View: HIST1H3A HIST1H3B HIST1H3C HIST1H3D HIST1H3E HIST1H3F HIST1H3G HIST1H3H HIST1H3I HIST1H3J Go to UniProtKB:  P68431

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
Histone H4	B, F, b, f, L, P, l, p, V, Z, v, z	106	Homo sapiens	Mutation(s): 0  Gene Names: HIST1H4A, HIST1H4B, HIST1H4C, HIST1H4D, HIST1H4E, HIST1H4F, HIST1H4H, HIST1H4I, HIST1H4J, HIST1H4K, HIST1H4L, HIST2H4A, HIST2H4B, HIST4H4 (H4/A, H4FA, H4/I, H4FI, H4/G, H4FG, H4/B, H4FB, H4/J, H4FJ, H4/C, H4FC, H4/H, H4FH, H4/M, H4FM, H4/E, H4FE, H4/D, H4FD, H4/K, H4FK, H4/N, H4F2, H4FN, HIST2H4, H4/O, H4FO)
Find proteins for P62805 (Homo sapiens) Go to Gene View: HIST1H4A HIST1H4B HIST1H4C HIST1H4D HIST1H4E HIST1H4F HIST1H4H HIST1H4I HIST1H4J HIST1H4K HIST1H4L HIST2H4A HIST2H4B HIST4H4 Go to UniProtKB:  P62805

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
Histone H2A type 1-B/E	C, G, c, g, M, Q, m, q, W, 0, w, 2	133	Homo sapiens	Mutation(s): 0  Gene Names: HIST1H2AB, HIST1H2AE (H2AFM, H2AFA)
Find proteins for P04908 (Homo sapiens) Go to Gene View: HIST1H2AB HIST1H2AE Go to UniProtKB:  P04908

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details
Histone H2B type 1-J	D, H, d, h, N, R, n, r, X, 1, x, 3	129	Homo sapiens	Mutation(s): 0  Gene Names: HIST1H2BJ (H2BFR)
Find proteins for P06899 (Homo sapiens) Go to Gene View: HIST1H2BJ Go to UniProtKB:  P06899

Entity ID: 5
Molecule	Chains	Length	Organism
DNA (1122-MER)	I	1122	synthetic construct

Entity ID: 6
Molecule	Chains	Length	Organism
DNA (1122-MER)	J	1122	synthetic construct

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 9.7 Å
• R-Value Free: 0.286 
• R-Value Work: 0.254 
• Space Group: P 2 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 111.078	α = 90.00
b = 238.761	β = 90.00
c = 674.368	γ = 90.00

Software Package:

Software Name	Purpose
Aimless	data scaling
PHASER	phasing
PHENIX	refinement
XDS	data reduction

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2018-09-08 
• Released Date: 2018-10-31 
• Deposition Author(s): Garcia-Saez, I., Dimitrov, S., Petosa, C.

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Funding Organization	Location	Grant Number
French National Research Agency	France	ANR-10-LABX-0030, ANR-12-BSV5-0017, ANR-14-CE09-0019, ANR-16- CE12-0013, ANR-17-CE11-0019, ANR-18-CE12-0010

Revision History 

• Version 1.0: 2018-10-31
  Type: Initial release
• Version 1.1: 2018-11-14
  Type: Data collection, Database references
• Version 1.2: 2018-12-19
  Type: Data collection, Database references