4K27

Myotonic Dystrophy Type 2 RNA: Structural Studies and Designed Small Molecules that Modulate RNA Function

• PDB DOI: https://doi.org/10.2210/pdb4K27/pdb
• NAKB: 4K27

• Classification: RNA
• Mutation(s): No 


• Deposited: 2013-04-08 Released: 2013-11-27 
• Deposition Author(s): Park, H., Lohman, J., Disney, M.D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.240 
• R-Value Work: 0.194 
• R-Value Observed: 0.196 

Literature

Myotonic Dystrophy Type 2 RNA: Structural Studies and Designed Small Molecules that Modulate RNA Function

Childs-Disney, J., Yildirim, I., Park, H., Lohman, J., Guan, L., Tran, T., Sarkar, P., Schatz, G.C., Disney, M.D.

(2013) ACS Chem Biol 

Biological Assembly 1  

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 17.87 kDa 
• Atom Count: 1,189 
• Modelled Residue Count: 55 
• Deposited Residue Count: 55 
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Length	Organism	Image
Myotonic Dystrophy Type 2 RNA	A [auth U]	55	N/A

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	E [auth U], F [auth U], G [auth U], H [auth U], I [auth U], J [auth U]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M
MG	B [auth U], C [auth U], D [auth U]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.35 Å
• R-Value Free: 0.240 
• R-Value Work: 0.194 
• R-Value Observed: 0.196 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 75.078	α = 90
b = 75.078	β = 90
c = 59.9	γ = 90

Software Package:

Software Name	Purpose
Blu-Ice	data collection
PHASES	phasing
PHENIX	refinement
PROCESS	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-11-27 
Deposition Author(s): Park, H., Lohman, J., Disney, M.D.

Revision History  

• Version 1.0: 2013-11-27
  Type: Initial release
  
• Version 2.0: 2022-06-08
  Changes: Advisory, Atomic model, Database references, Derived calculations
• Version 2.1: 2024-02-28
  Changes: Data collection