8PI2

Native alpha-1-antitrypsin at 1.5 Angstrom (Cys232Ser)

• PDB DOI: https://doi.org/10.2210/pdb8PI2/pdb

• Classification: PROTEIN BINDING
• Organism(s): Homo sapiens
• Expression System: Escherichia coli K-12
• Mutation(s): No 


• Deposited: 2023-06-20 Released: 2023-07-05 
• Deposition Author(s): Wang, M., Irving, J.A.
• Funding Organization(s): Medical Research Council (MRC, United Kingdom), Other private

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.48 Å
• R-Value Free: 0.195 
• R-Value Work: 0.169 
• R-Value Observed: 0.169 

Starting Model: experimental

Literature

Structural determinants of instability in alpha-1-antitrypsin

Aldobiyan, I., Wang, M., Irving, J.A., Lomas, D.A.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 45.81 kDa 
• Atom Count: 3,257 
• Modelled Residue Count: 371 
• Deposited Residue Count: 404 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Alpha-1-antitrypsin	A	404	Homo sapiens	Mutation(s): 0  Gene Names: SERPINA1, AAT, PI, PRO0684, PRO2209
UniProt & NIH Common Fund Data Resources
Find proteins for P01009 (Homo sapiens) Explore P01009  Go to UniProtKB:  P01009
PHAROS:  P01009 GTEx:  ENSG00000197249

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
DMS	D [auth A]	DIMETHYL SULFOXIDE C2 H6 O S IAZDPXIOMUYVGZ-UHFFFAOYSA-N
GLY	B [auth A]	GLYCINE C2 H5 N O2 DHMQDGOQFOQNFH-UHFFFAOYSA-N
EDO	C [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.48 Å
• R-Value Free: 0.195 
• R-Value Work: 0.169 
• R-Value Observed: 0.169 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 114.566	α = 90
b = 38.994	β = 103.88
c = 89.247	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
autoPROC	data processing
XDS	data reduction
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-07-05 
Deposition Author(s): Wang, M., Irving, J.A.

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Funding Organization	Location	Grant Number
Medical Research Council (MRC, United Kingdom)	United Kingdom	MR/V034243/1
Other private		Alpha-1 Foundation to JI

Revision History  

• Version 1.0: 2023-07-05
  Type: Initial release
  
• Version 1.1: 2024-06-19
  Changes: Data collection