4AYE

Structure of a complex between CCPs 6 and 7 of Human Complement Factor H and Neisseria meningitidis FHbp Variant 1 E283AE304A mutant


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.208 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Design and Evaluation of Meningococcal Vaccines Through Structure-Based Modification of Host and Pathogen Molecules.

Johnson, S.Tan, L.Van Der Veen, S.Caesar, J.Goicoechea De Jorge, E.Harding, R.J.Bai, X.Exley, R.M.Ward, P.N.Ruivo, N.Trivedi, K.Cumber, E.Jones, R.Newham, L.Staunton, D.Ufret-Vincenty, R.Borrow, R.Pickering, M.C.Lea, S.M.Tang, C.M.

(2012) PLoS Pathog 8: 2981

  • DOI: 10.1371/journal.ppat.1002981
  • Primary Citation of Related Structures:  
    4AYD, 4AYE, 4AYI, 4AYM, 4AYN, 2YBY

  • PubMed Abstract: 
  • Neisseria meningitis remains a leading cause of sepsis and meningitis, and vaccines are required to prevent infections by this important human pathogen. Factor H binding protein (fHbp) is a key antigen that elicits protective immunity against the meningococcus and recruits the host complement regulator, fH ...

    Neisseria meningitis remains a leading cause of sepsis and meningitis, and vaccines are required to prevent infections by this important human pathogen. Factor H binding protein (fHbp) is a key antigen that elicits protective immunity against the meningococcus and recruits the host complement regulator, fH. As the high affinity interaction between fHbp and fH could impair immune responses, we sought to identify non-functional fHbps that could act as effective immunogens. This was achieved by alanine substitution of fHbps from all three variant groups (V1, V2 and V3 fHbp) of the protein; while some residues affected fH binding in each variant group, the distribution of key amino underlying the interaction with fH differed between the V1, V2 and V3 proteins. The atomic structure of V3 fHbp in complex with fH and of the C-terminal barrel of V2 fHbp provide explanations to the differences in the precise nature of their interactions with fH, and the instability of the V2 protein. To develop transgenic models to assess the efficacy of non-functional fHbps, we determined the structural basis of the low level of interaction between fHbp and murine fH; in addition to changes in amino acids in the fHbp binding site, murine fH has a distinct conformation compared with the human protein that would sterically inhibit binding to fHbp. Non-functional V1 fHbps were further characterised by binding and structural studies, and shown in non-transgenic and transgenic mice (expressing chimeric fH that binds fHbp and precisely regulates complement system) to retain their immunogenicity. Our findings provide a catalogue of non-functional fHbps from all variant groups that can be included in new generation meningococcal vaccines, and establish proof-in-principle for clinical studies to compare their efficacy with wild-type fHbps.


    Organizational Affiliation

    Sir William Dunn School of Pathology, University of Oxford, Oxford, United Kingdom.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
COMPLEMENT FACTOR HA, B, E125Homo sapiensMutation(s): 1 
Gene Names: CFHHFHF1HF2
UniProt & NIH Common Fund Data Resources
Find proteins for P08603 (Homo sapiens)
Explore P08603 
Go to UniProtKB:  P08603
PHAROS:  P08603
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
FACTOR H BINDING PROTEINC, D, F257Neisseria meningitidis MC58Mutation(s): 2 
Gene Names: NMB1870
UniProt
Find proteins for Q9JXV4 (Neisseria meningitidis serogroup B (strain MC58))
Explore Q9JXV4 
Go to UniProtKB:  Q9JXV4
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download Ideal Coordinates CCD File 
G [auth A] , H [auth A] , I [auth A] , J [auth A] , K [auth A] , L [auth B] , M [auth B] , N [auth B] , 
G [auth A],  H [auth A],  I [auth A],  J [auth A],  K [auth A],  L [auth B],  M [auth B],  N [auth B],  O [auth B],  P [auth C],  Q [auth C],  R [auth C],  S [auth D],  T [auth D],  U [auth E],  V [auth E],  W [auth E],  X [auth E],  Y [auth F]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.226 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.208 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 187.413α = 90
b = 53.277β = 117.74
c = 130.084γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2012-11-07
    Type: Initial release
  • Version 1.1: 2012-11-21
    Changes: Database references, Derived calculations, Structure summary
  • Version 1.2: 2015-03-25
    Changes: Database references