7LHK

High-Resolution Crystal Structure of a Lipin/Pah Phosphatidic Acid Phosphatase

• PDB DOI: https://doi.org/10.2210/pdb7LHK/pdb

• Classification: HYDROLASE
• Organism(s): Tetrahymena thermophila SB210
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2021-01-25 Released: 2022-02-23 
• Deposition Author(s): Khayyo, V.I., Airola, M.V.
• Funding Organization(s): American Heart Association, National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.211 
• R-Value Work: 0.165 
• R-Value Observed: 0.167 

Literature

High-resolution structure of phosphatidic acid phosphohydrolase from Tetrahymena thermophila

Khayyo, V.I., Airola, M.V.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 71.79 kDa 
• Atom Count: 5,407 
• Modelled Residue Count: 592 
• Deposited Residue Count: 626 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Nuclear elongation and deformation protein	A, B	313	Tetrahymena thermophila SB210	Mutation(s): 0  Gene Names: TTHERM_00215970
UniProt
Find proteins for I7MFJ3 (Tetrahymena thermophila (strain SB210)) Explore I7MFJ3  Go to UniProtKB:  I7MFJ3

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CAC	C [auth A], D [auth B]	CACODYLATE ION C2 H6 As O2 OGGXGZAMXPVRFZ-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.95 Å
• R-Value Free: 0.211 
• R-Value Work: 0.165 
• R-Value Observed: 0.167 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 144.41	α = 90
b = 171.626	β = 90
c = 62.845	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
PDB_EXTRACT	data extraction
DIALS	data reduction

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-02-23 
Deposition Author(s): Khayyo, V.I., Airola, M.V.

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Funding Organization	Location	Grant Number
American Heart Association	United States	19PRE34450192
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R35GM128666
American Heart Association	United States	17SDG33410860

Revision History  

• Version 1.0: 2022-02-23
  Type: Initial release
  
• Version 1.1: 2023-10-18
  Changes: Data collection, Refinement description