3SO4 | pdb_00003so4

Methionine-adenosyltransferase from Entamoeba histolytica

• PDB DOI: https://doi.org/10.2210/pdb3SO4/pdb

• Classification: TRANSFERASE
• Organism(s): Entamoeba histolytica
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2011-06-29 Released: 2011-07-20 
• Deposition Author(s): Merritt, E.A., Medical Structural Genomics of Pathogenic Protozoa (MSGPP)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.18 Å
• R-Value Free: 
  0.284 (Depositor), 0.281 (DCC) 
• R-Value Work: 
  0.228 (Depositor), 0.230 (DCC) 
• R-Value Observed: 
  0.231 (Depositor) 

Literature

Methionine-adenosyltransferase from Entamoeba histolytica

Merritt, E.A., Arakaki, T., Zhang, L., Napuli, A., Van Voorhis, W.C., Buckner, F.S., Fan, E., Zucker, F., Verlinde, C.L.M.J., Hol, W.G.J.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

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

Macromolecule Content 

• Total Structure Weight: 182.94 kDa 
• Atom Count: 11,498 
• Modeled Residue Count: 1,516 
• Deposited Residue Count: 1,660 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Methionine-adenosyltransferase	A, B, C, D	415	Entamoeba histolytica	Mutation(s): 0  Gene Names: 103.m00148, EHI_174250 EC: 2.5.1.6
UniProt
Find proteins for C4M272 (Entamoeba histolytica (strain ATCC 30459 / HM-1:IMSS / ABRM)) Explore C4M272  Go to UniProtKB:  C4M272

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACT	E [auth A], F [auth B], G [auth C], H [auth D]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.18 Å
• R-Value Free:  0.284 (Depositor), 0.281 (DCC) 
• R-Value Work:  0.228 (Depositor), 0.230 (DCC) 
• R-Value Observed: 0.231 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.492	α = 90
b = 113.161	β = 90
c = 220.848	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
Blu-Ice	data collection
HKL-2000	data reduction
BALBES	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-07-20 
Deposition Author(s): Merritt, E.A., Medical Structural Genomics of Pathogenic Protozoa (MSGPP)

Revision History  

• Version 1.0: 2011-07-20
  Type: Initial release
  
• Version 1.1: 2017-11-08
  Changes: Refinement description
• Version 1.2: 2024-02-28
  Changes: Data collection, Database references, Derived calculations