7OW0

1.55 A crystal structure of DNA/2'-O-methyl-RNA heteroduplex with overhangs solved by Zn-SAD.

• PDB DOI: https://doi.org/10.2210/pdb7OW0/pdb
• NAKB: 7OW0

• Classification: DNA-RNA HYBRID
• Organism(s): synthetic construct
• Mutation(s): No 


• Deposited: 2021-06-15 Released: 2021-07-14 
• Deposition Author(s): Dolot, R.M., Maciaszek, A., Nawrot, B.C.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.251 
• R-Value Work: 0.221 
• R-Value Observed: 0.224 

Literature

First High-Resolution Crystal Structures of DNA:2'-O-Methyl-RNA Heteroduplexes

Dolot, R., Maciaszek, A., Mikolajczyk, B., Nawrot, B.

(2022) Crystals (Basel) 

• DOI: https://doi.org/10.3390/cryst12060760

Biological Assembly 1  

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 5.92 kDa 
• Atom Count: 476 
• Modelled Residue Count: 18 
• Deposited Residue Count: 18 
• Unique nucleic acid chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Length	Organism	Image
DNA (5'-D(*TP*CP*TP*CP*CP*TP*AP*GP*G)-3')	A	9	synthetic construct

Entity ID: 2
Molecule	Chains	Length	Organism	Image
RNA (5'-R(*(OMC)P*(OMU)P*(A2M)P*(OMG)P*(OMG)P*(A2M)P*(OMG)P*(A2M)P*(OMC))-3')	B	9	synthetic construct

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZN (Subject of Investigation/LOI)	C [auth A], D [auth B], E [auth B]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.251 
• R-Value Work: 0.221 
• R-Value Observed: 0.224 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 31.85	α = 90
b = 31.85	β = 90
c = 91.66	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
SHELXD	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-07-14 
Deposition Author(s): Dolot, R.M., Maciaszek, A., Nawrot, B.C.

Revision History  

• Version 1.0: 2021-07-14
  Type: Initial release
  
• Version 1.1: 2022-06-08
  Changes: Database references