6XST

Recombinant Beta-2-Glycoprotein I with putative membrane insertion loop

• PDB DOI: https://doi.org/10.2210/pdb6XST/pdb

• Classification: BLOOD CLOTTING
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2020-07-16 Released: 2021-07-21 
• Deposition Author(s): Klenotic, P.A., Yu, E.W.Y.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.92 Å
• R-Value Free: 0.239 
• R-Value Work: 0.226 
• R-Value Observed: 0.226 

Starting Model: experimental

Literature

Beta-2-Glycoprotein I and it's role in APS

Klenotic, P.A., Yu, E.W.Y.

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

Macromolecule Content

• Total Structure Weight: 38.05 kDa 
• Atom Count: 2,646 
• Modelled Residue Count: 326 
• Deposited Residue Count: 326 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Beta-2-glycoprotein 1	A	326	Homo sapiens	Mutation(s): 0  Gene Names: APOH, B2G1
UniProt & NIH Common Fund Data Resources
Find proteins for P02749 (Homo sapiens) Explore P02749  Go to UniProtKB:  P02749
PHAROS:  P02749 GTEx:  ENSG00000091583
Glycosylation
Glycosylation Sites: 4		Go to GlyGen: P02749-1

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	B	4		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G47477HI GlyCosmos:  G47477HI GlyGen:  G47477HI

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	C	3		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G21290RB GlyCosmos:  G21290RB GlyGen:  G21290RB

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	D [auth A], E [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.92 Å
• R-Value Free: 0.239 
• R-Value Work: 0.226 
• R-Value Observed: 0.226 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 159.188	α = 90
b = 175.225	β = 90
c = 113.17	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
Coot	model building
HKL-2000	data scaling
PHENIX	phasing
HKL-2000	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2021-07-21 
Deposition Author(s): Klenotic, P.A., Yu, E.W.Y.

Revision History  

• Version 1.0: 2021-07-21
  Type: Initial release
  
• Version 1.1: 2023-10-18
  Changes: Data collection, Database references, Refinement description
• Version 1.2: 2024-11-06
  Changes: Structure summary