5YAX

Crystal structure of a human neutralizing antibody bound to a HBV preS1 peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.242 
  • R-Value Observed: 0.245 

wwPDB Validation 3D Report Full Report



Literature

A potent human neutralizing antibody Fc-dependently reduces established HBV infections

Li, D.He, W.Liu, X.Zheng, S.Qi, Y.Li, H.Mao, F.Liu, J.Sun, Y.Pan, L.Du, K.Ye, K.Li, W.Sui, J.

(2017) Elife 6

  • DOI: 10.7554/eLife.26738
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Hepatitis B virus (HBV) infection is a major global health problem. Currently-available therapies are ineffective in curing chronic HBV infection. HBV and its satellite hepatitis D virus (HDV) infect hepatocytes via binding of the preS1 domain of its ...

    Hepatitis B virus (HBV) infection is a major global health problem. Currently-available therapies are ineffective in curing chronic HBV infection. HBV and its satellite hepatitis D virus (HDV) infect hepatocytes via binding of the preS1 domain of its large envelope protein to sodium taurocholate cotransporting polypeptide (NTCP). Here, we developed novel human monoclonal antibodies that block the engagement of preS1 with NTCP and neutralize HBV and HDV with high potency. One antibody, 2H5-A14, functions at picomolar level and exhibited neutralization-activity-mediated prophylactic effects. It also acts therapeutically by eliciting antibody-Fc-dependent immunological effector functions that impose durable suppression of viral infection in HBV-infected mice, resulting in reductions in the levels of the small envelope antigen and viral DNA, with no emergence of escape mutants. Our results illustrate a novel antibody-Fc-dependent approach for HBV treatment and suggest 2H5-A14 as a novel clinical candidate for HBV prevention and treatment of chronic HBV infection.


    Organizational Affiliation

    National Institute of Biological Sciences, Beijing, China.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
scFv1 antibody
A, B
246Homo sapiensMutation(s): 0 
Gene Names: scFv
Protein Feature View is not available: No corresponding UniProt sequence found.

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Large envelope protein
C
60Hepatitis B virusMutation(s): 0 
Gene Names: S
Find proteins for B2CXZ0 (Hepatitis B virus)
Go to UniProtKB:  B2CXZ0
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download CCD File 
C
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.288 
  • R-Value Work: 0.242 
  • R-Value Observed: 0.245 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 142.67α = 90
b = 55.662β = 90
c = 67.696γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-10-11
    Type: Initial release