Biological Assembly 1  

 3D View: Structure | Electron Density

Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 

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

Biological Assembly 2  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - A1B1C1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 3-mer - A2B1 

Biological assembly 2 assigned by authors and generated by (software)

Macromolecule Content

• Total Structure Weight: 234.41 kDa 
• Atom Count: 11478 
• Residue Count: 1433 
• Unique protein chains: 3

4U1G

Plasmodium falciparum reticulocyte-binding protein homologue 5 (PfRH5) bound to monoclonal antibody QA1

• DOI: 10.2210/pdb4U1G/pdb

• Classification: IMMUNE SYSTEM
• Organism(s): Plasmodium falciparum, Mus musculus
• Expression System: Drosophila melanogaster, Oryctolagus cuniculus
• Mutation(s): Yes 


• Deposited: 2014-07-15 Released: 2014-08-13 
• Deposition Author(s): Wright, K.E., Hjerrild, K.A., Bartlett, J., Douglas, A.D., Jin, J., Brown, R.E., Ashfield, R., Clemmensen, S.B., de Jongh, W.A., Draper, S.J., Higgins, M.K.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.10 Å
• R-Value Free: 0.281 
• R-Value Work: 0.236 
• R-Value Observed: 0.238 

Literature

Structure of malaria invasion protein RH5 with erythrocyte basigin and blocking antibodies.

Wright, K.E., Hjerrild, K.A., Bartlett, J., Douglas, A.D., Jin, J., Brown, R.E., Illingworth, J.J., Ashfield, R., Clemmensen, S.B., de Jongh, W.A., Draper, S.J., Higgins, M.K.

(2014) Nature 515: 427-430

• PubMed: 25132548 
• DOI: 10.1038/nature13715
• Primary Citation of Related Structures:  
  4U1G, 4U0Q, 4U0R


• PubMed Abstract: 
  

Invasion of host erythrocytes is essential to the life cycle of Plasmodium parasites and development of the pathology of malaria. The stages of erythrocyte invasion, including initial contact, apical reorientation, junction formation, and active invagination, are directed by coordinated release of specialized apical organelles and their parasite protein contents. Among these proteins, and central to invasion by all species, are two parasite protein families, the reticulocyte-binding protein homologue (RH) and erythrocyte-binding like proteins, which mediate host-parasite interactions. RH5 from Plasmodium falciparum (PfRH5) is the only member of either family demonstrated to be necessary for erythrocyte invasion in all tested strains, through its interaction with the erythrocyte surface protein basigin (also known as CD147 and EMMPRIN). Antibodies targeting PfRH5 or basigin efficiently block parasite invasion in vitro, making PfRH5 an excellent vaccine candidate. Here we present crystal structures of PfRH5 in complex with basigin and two distinct inhibitory antibodies. PfRH5 adopts a novel fold in which two three-helical bundles come together in a kite-like architecture, presenting binding sites for basigin and inhibitory antibodies at one tip. This provides the first structural insight into erythrocyte binding by the Plasmodium RH protein family and identifies novel inhibitory epitopes to guide design of a new generation of vaccines against the blood-stage parasite.

---

Organizational Affiliation: 

Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, UK.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Reticulocyte binding protein 5	A, D	526	Plasmodium falciparum	Mutation(s): 1
Find proteins for B2L3N7 (Plasmodium falciparum) Explore B2L3N7  Go to UniProtKB:  B2L3N7

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
QA1 monoclonal antibody heavy chain	B, E	258	Mus musculus	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
QA1 monoclonal antibody light chain	C, F	238	Mus musculus	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.10 Å
• R-Value Free: 0.281 
• R-Value Work: 0.236 
• R-Value Observed: 0.238 
• Space Group: P 2 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.12	α = 90
b = 137.3	β = 90
c = 228.579	γ = 90

Software Package:

Software Name	Purpose
BUSTER	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2014-07-15 
• Released Date: 2014-08-13 
Deposition Author(s): Wright, K.E., Hjerrild, K.A., Bartlett, J., Douglas, A.D., Jin, J., Brown, R.E., Ashfield, R., Clemmensen, S.B., de Jongh, W.A., Draper, S.J., Higgins, M.K.

Revision History 

• Version 1.0: 2014-08-13
  Type: Initial release
  
• Version 1.1: 2014-08-27
  Changes: Database references
• Version 1.2: 2014-12-03
  Changes: Database references
• Version 1.3: 2015-07-22
  Changes: Source and taxonomy