5JFB

Crystal structure of the scavenger receptor cysteine-rich domain 5 (SRCR5) from porcine CD163


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.208 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

The Crystal Structure of the Fifth Scavenger Receptor Cysteine-Rich Domain of Porcine CD163 Reveals an Important Residue Involved in Porcine Reproductive and Respiratory Syndrome Virus Infection

Ma, H.Jiang, L.Qiao, S.Zhi, Y.Chen, X.X.Yang, Y.Huang, X.Huang, M.Li, R.Zhang, G.P.

(2017) J. Virol. 91: --

  • DOI: 10.1128/JVI.01897-16

  • PubMed Abstract: 
  • Porcine reproductive and respiratory syndrome (PRRS) has become an economically critical factor in swine industry since its worldwide spread in the 1990s. Infection by its causative agent, PRRS virus (PRRSV), was proven to be mediated by an indispens ...

    Porcine reproductive and respiratory syndrome (PRRS) has become an economically critical factor in swine industry since its worldwide spread in the 1990s. Infection by its causative agent, PRRS virus (PRRSV), was proven to be mediated by an indispensable receptor, porcine CD163 (pCD163), and the fifth scavenger receptor cysteine-rich domain (SRCR5) is essential for virus infection. However, the structural details and specific residues of pCD163 SRCR5 involved in infection have not been defined yet. In this study, we prepared recombinant pCD163 SRCR5 in Drosophila melanogaster Schneider 2 (S2) cells and determined its crystal structure at a high resolution of 2.0 Å. This structure includes a markedly long loop region and shows a special electrostatic potential, and these are significantly different from those of other members of the scavenger receptor cysteine-rich superfamily (SRCR-SF). Subsequently, we carried out structure-based mutational studies to identify that the arginine residue at position 561 (Arg561) in the long loop region is important for PRRSV infection. Further, we showed Arg561 probably takes effect on the binding of pCD163 to PRRSV during virus invasion. Altogether the current work provides the first view of the CD163 SRCR domain, expands our knowledge of the invasion mechanism of PRRSV, and supports a molecular basis for prevention and control of the virus.


    Organizational Affiliation

    College of Chemistry, Fuzhou University, Fuzhou, Fujian, China.,Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China lirui860620@sina.com zhanggaiping2003@163.com.,College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China.,College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China lirui860620@sina.com zhanggaiping2003@163.com.,Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou, Henan, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Scavenger receptor cysteine-rich type 1 protein M130
A
113Sus scrofaMutation(s): 0 
Gene Names: CD163 (M130)
Find proteins for Q2VL90 (Sus scrofa)
Go to Gene View: CD163
Go to UniProtKB:  Q2VL90
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.239 
  • R-Value Work: 0.208 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 29.711α = 90.00
b = 73.930β = 90.00
c = 87.527γ = 90.00
Software Package:
Software NamePurpose
HKL-3000data processing
HKL-3000data scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-03-22
    Type: Initial release