8CHA

Fc gamma RIIa 27W/131H variant ectodomain

• PDB DOI: https://doi.org/10.2210/pdb8CHA/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): Yes 


• Deposited: 2023-02-07 Released: 2024-05-22 
• Deposition Author(s): Foy, E.G., Thomsen, M., Goldman, A., Robinson, J.I.
• Funding Organization(s): Other private, Wellcome Trust, European Research Council (ERC), Biotechnology and Biological Sciences Research Council (BBSRC), Academy of Finland, Medical Research Council (MRC, United Kingdom)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.81 Å
• R-Value Free: 0.225 
• R-Value Work: 0.193 
• R-Value Observed: 0.194 

Starting Model: experimental

Literature

Fc gamma RIIa 27W/131H variant ectodomain

Foy, E.G., Thomsen, M., Goldman, A., Robinson, J.I.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 25.4 kDa 
• Atom Count: 1,587 
• Modelled Residue Count: 168 
• Deposited Residue Count: 209 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Low affinity immunoglobulin gamma Fc region receptor II-a	A	209	Homo sapiens	Mutation(s): 1  Gene Names: FCGR2A, CD32, FCG2, FCGR2A1, IGFR2
UniProt & NIH Common Fund Data Resources
Find proteins for P12318 (Homo sapiens) Explore P12318  Go to UniProtKB:  P12318
PHAROS:  P12318 GTEx:  ENSG00000143226
Glycosylation
Glycosylation Sites: 1		Go to GlyGen: P12318-1

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	B	4	N/A	N-Glycosylation
Glycosylation Resources
GlyTouCan:  G81315DD GlyCosmos:  G81315DD GlyGen:  G81315DD

Small Molecules

Ligands 7 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
16P	G [auth A]	3,6,9,12,15,18-HEXAOXAICOSANE C14 H30 O6 IXFAFGFZFQHRLB-UHFFFAOYSA-N
FLC	C [auth A]	CITRATE ANION C6 H5 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-K
FWN	J [auth A]	2-[2-(2-ethoxyethoxy)ethoxy]ethanol C8 H18 O4 WFSMVVDJSNMRAR-UHFFFAOYSA-N
PGE	H [auth A]	TRIETHYLENE GLYCOL C6 H14 O4 ZIBGPFATKBEMQZ-UHFFFAOYSA-N
PO4	D [auth A], E [auth A], F [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K
DXE	I [auth A]	1,2-DIMETHOXYETHANE C4 H10 O2 XTHFKEDIFFGKHM-UHFFFAOYSA-N
NA	K [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.81 Å
• R-Value Free: 0.225 
• R-Value Work: 0.193 
• R-Value Observed: 0.194 
• Space Group: C 2 2 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 49.931	α = 90
b = 76.526	β = 90
c = 108.279	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Coot	model building
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-05-22 
Deposition Author(s): Foy, E.G., Thomsen, M., Goldman, A., Robinson, J.I.

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Funding Organization	Location	Grant Number
Other private		19764
Wellcome Trust	United Kingdom	091322/2/10/2
European Research Council (ERC)	European Union	708051
Biotechnology and Biological Sciences Research Council (BBSRC)	United Kingdom	ALERT-13
Biotechnology and Biological Sciences Research Council (BBSRC)	United Kingdom	BB/M021610/1
Academy of Finland	Finland	1252206
Medical Research Council (MRC, United Kingdom)	United Kingdom	MR/K015346/1

Revision History  

• Version 1.0: 2024-05-22
  Type: Initial release