3MQW

Crystal structure of a putative endoribonuclease L-PSP from Entamoeba histolytica with higher solvent content and an ordered N-terminal tag

• PDB DOI:  https://doi.org/10.2210/pdb3MQW/pdb

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


• Deposited: 2010-04-28 Released: 2010-05-12 
• Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.183 
• R-Value Work: 0.147 
• R-Value Observed: 0.148 

Literature

Crystal structure of a putative endoribonuclease L-PSP from Entamoeba histolytica

Gardberg, A., Abendroth, J., Staker, B.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

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

Biological Assembly 2  

Global Symmetry: Cyclic - C3  (3D View)
Global Stoichiometry: Homo 3-mer - A3 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 96.28 kDa 
• Atom Count: 6,943 
• Modelled Residue Count: 817 
• Deposited Residue Count: 888 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
putative Endoribonuclease L-PSP	A, B, C, D, E, F	148	Entamoeba histolytica	Mutation(s): 0  Gene Names: EHI_087570, HM-1:IMSS
UniProt
Find proteins for C4LXT9 (Entamoeba histolytica (strain ATCC 30459 / HM-1:IMSS / ABRM)) Explore C4LXT9  Go to UniProtKB:  C4LXT9

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FLC	G [auth A], I [auth B], M [auth C], Q [auth D], U [auth E]	CITRATE ANION C6 H5 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-K
SO4	J [auth B], K [auth B], N [auth C], O [auth C], R [auth D], T [auth E], W [auth F]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	H [auth A], L [auth B], P [auth C], S [auth D], V [auth E], X [auth F]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.183 
• R-Value Work: 0.147 
• R-Value Observed: 0.148 
• Space Group: P 2₁ 2₁ 2₁
• Diffraction Data: https://doi.org/10.18430/M33MQW

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 84	α = 90
b = 99.72	β = 90
c = 106.1	γ = 90

Software Package:

Software Name	Purpose
Blu-Ice	data collection
PHASER	phasing
REFMAC	refinement
XDS	data reduction
XSCALE	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2010-05-12 
Deposition Author(s): Seattle Structural Genomics Center for Infectious Disease (SSGCID)

Revision History  

• Version 1.0: 2010-05-12
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-09-06
  Changes: Data collection, Database references, Derived calculations, Refinement description