4J3C

Crystal structure of 16S ribosomal RNA methyltransferase RsmE

• PDB DOI: https://doi.org/10.2210/pdb4J3C/pdb

• Classification: TRANSFERASE
• Organism(s): Sinorhizobium meliloti 1021
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 2013-02-05 Released: 2013-02-20 
• Deposition Author(s): Eswaramoorthy, S., Chamala, S., Evans, B., Foti, F., Gizzi, A., Hillerich, B., Kar, A., Lafleur, J., Seidel, R., Villigas, G., Zencheck, W., Al Obaidi, N., Almo, S.C., Swaminathan, S., 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: 0.287 
• R-Value Work: 0.246 
• R-Value Observed: 0.248 

Literature

Crystal structure of 16S ribosomal RNA methyltransferase RsmE

Eswaramoorthy, S., Almo, S.C., Swaminathan, S.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Macromolecule Content

• Total Structure Weight: 60.2 kDa 
• Atom Count: 3,612 
• Modelled Residue Count: 466 
• Deposited Residue Count: 534 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Ribosomal RNA small subunit methyltransferase E	A, B	267	Sinorhizobium meliloti 1021	Mutation(s): 0  Gene Names: R00771, SMc00826 EC: 2.1.1.193
UniProt
Find proteins for Q92RS8 (Rhizobium meliloti (strain 1021)) Explore Q92RS8  Go to UniProtKB:  Q92RS8

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.287 
• R-Value Work: 0.246 
• R-Value Observed: 0.248 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 96.085	α = 90
b = 152.082	β = 90
c = 38.995	γ = 90

Software Package:

Software Name	Purpose
CBASS	data collection
SHELXS	phasing
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-02-20 
Deposition Author(s): Eswaramoorthy, S., Chamala, S., Evans, B., Foti, F., Gizzi, A., Hillerich, B., Kar, A., Lafleur, J., Seidel, R., Villigas, G., Zencheck, W., Al Obaidi, N., Almo, S.C., Swaminathan, S., New York Structural Genomics Research Consortium (NYSGRC)

Revision History  

• Version 1.0: 2013-02-20
  Type: Initial release
  
• Version 1.1: 2024-11-20
  Changes: Data collection, Database references, Derived calculations, Structure summary