8J7Q

The active site mutant of human inorganic pyrophosphatase

• PDB DOI: https://doi.org/10.2210/pdb8J7Q/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2023-04-28 Released: 2024-04-03 
• Deposition Author(s): Hu, F., Zheng, S.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.69 Å
• R-Value Free: 0.246 
• R-Value Work: 0.215 
• R-Value Observed: 0.217 

Literature

The active site mutant of human inorganic pyrophosphatase

Hu, F., Zheng, S.

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 32.55 kDa 
• Atom Count: 2,249 
• Modelled Residue Count: 258 
• Deposited Residue Count: 289 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Inorganic pyrophosphatase	A	289	Homo sapiens	Mutation(s): 4  Gene Names: PPA1, IOPPP, PP EC: 3.6.1.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q15181 (Homo sapiens) Explore Q15181  Go to UniProtKB:  Q15181
PHAROS:  Q15181 GTEx:  ENSG00000180817

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.69 Å
• R-Value Free: 0.246 
• R-Value Work: 0.215 
• R-Value Observed: 0.217 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 83.354	α = 90
b = 90.765	β = 90
c = 94.998	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-04-03 
Deposition Author(s): Hu, F., Zheng, S.

---

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History  

• Version 1.0: 2024-04-03
  Type: Initial release