4M4O

Crystal structure of the aptamer minE-lysozyme complex

• PDB DOI: https://doi.org/10.2210/pdb4M4O/pdb
• NAKB: 4M4O

• Classification: HYDROLASE/RNA
• Organism(s): Gallus gallus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2013-08-07 Released: 2013-12-18 
• Deposition Author(s): Malashkevich, V.N., Padlan, F.C., Toro, R., Girvin, M., Almo, S.C., New York Structural Genomics Research Consortium (NYSGRC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.207 
• R-Value Work: 0.181 
• R-Value Observed: 0.182 

Starting Model: experimental

Literature

Crystal structure of the aptamer minE-lysozyme complex

Malashkevich, V.N., Padlan, F.C., Toro, R., Girvin, M., Almo, S.C.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 33.4 kDa 
• Atom Count: 2,496 
• Modelled Residue Count: 188 
• Deposited Residue Count: 188 
• Unique protein chains: 1
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Lysozyme C	A	129	Gallus gallus	Mutation(s): 0  Gene Names: LYZ, LYZ1 EC: 3.2.1.17
UniProt
Find proteins for P00698 (Gallus gallus) Explore P00698  Go to UniProtKB:  P00698

Entity ID: 2
Molecule	Chains	Length	Organism	Image
RNA (59-MER)	B	59	N/A

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MG	D [auth B], E [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N
NA	C [auth B]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.207 
• R-Value Work: 0.181 
• R-Value Observed: 0.182 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 141.216	α = 90
b = 30.609	β = 122.45
c = 89.817	γ = 90

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
CBASS	data collection
HKL-2000	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-12-18 
Deposition Author(s): Malashkevich, V.N., Padlan, F.C., Toro, R., Girvin, M., Almo, S.C., New York Structural Genomics Research Consortium (NYSGRC)

Revision History  

• Version 1.0: 2013-12-18
  Type: Initial release
  
• Version 1.1: 2023-09-20
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.2: 2024-11-20
  Changes: Structure summary