1FNL

CRYSTAL STRUCTURE OF THE EXTRACELLULAR DOMAIN OF A HUMAN FCGRIII


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the extracellular domain of a human Fc gamma RIII.

Zhang, Y.Boesen, C.C.Radaev, S.Brooks, A.G.Fridman, W.H.Sautes-Fridman, C.Sun, P.D.

(2000) Immunity 13: 387-395


  • PubMed Abstract: 
  • Fc receptors play a major role in immune defenses against pathogens and in inflammatory processes. The crystal structure of a human immunoglobulin receptor, FcgammaRIIIb, has been determined to 1.8 A resolution. The overall fold consists of two immun ...

    Fc receptors play a major role in immune defenses against pathogens and in inflammatory processes. The crystal structure of a human immunoglobulin receptor, FcgammaRIIIb, has been determined to 1.8 A resolution. The overall fold consists of two immunoglobulin-like domains with an acute interdomain hinge angle of approximately 50 degrees. Trp-113, wedged between the N-terminal D1 and the C-terminal D2 domains, appears to further restrict the hinge angle. The putative Fc binding region of the receptor carries a net positive charge complementary to the negative-charged receptor binding regions on Fc. A 1:1 binding stoichiometry between the receptor and Fc was measured by both the equilibrium and nonequilibrium size-exclusion chromatography. Two separate parallel dimers are observed in the crystal lattice, offering intriguing models for receptor aggregation.


    Organizational Affiliation

    Department of Human Biological Chemistry and Genetics, University of Texas Medical Branch, Galveston 77555, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LOW AFFINITY IMMUNOGLOBULIN GAMMA FC REGION RECEPTOR III-B
A
175Homo sapiensGene Names: FCGR3B (CD16B, FCG3, FCGR3, IGFR3)
Find proteins for O75015 (Homo sapiens)
Go to Gene View: FCGR3B
Go to UniProtKB:  O75015
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HG
Query on HG

Download SDF File 
Download CCD File 
A
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.184 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 67.427α = 90.00
b = 85.733β = 90.00
c = 36.330γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
CNSphasing
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-11-22
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance