4OD1

Crystal structure of human Fab CAP256-VRC26.03, a potent V1V2-directed HIV-1 neutralizing antibody


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.69 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Developmental pathway for potent V1V2-directed HIV-neutralizing antibodies.

Doria-Rose, N.A.Schramm, C.A.Gorman, J.Moore, P.L.Bhiman, J.N.Dekosky, B.J.Ernandes, M.J.Georgiev, I.S.Kim, H.J.Pancera, M.Staupe, R.P.Altae-Tran, H.R.Bailer, R.T.Crooks, E.T.Cupo, A.Druz, A.Garrett, N.J.Hoi, K.H.Kong, R.Louder, M.K.Longo, N.S.McKee, K.Nonyane, M.O'Dell, S.Roark, R.S.Rudicell, R.S.Schmidt, S.D.Sheward, D.J.Soto, C.Wibmer, C.K.Yang, Y.Zhang, Z.Sequencing, Nisc ComparativeMullikin, J.C.Binley, J.M.Sanders, R.W.Wilson, I.A.Moore, J.P.Ward, A.B.Georgiou, G.Williamson, C.Abdool Karim, S.S.Morris, L.Kwong, P.D.Shapiro, L.Mascola, J.R.

(2014) Nature 509: 55-62

  • DOI: 10.1038/nature13036
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Antibodies capable of neutralizing HIV-1 often target variable regions 1 and 2 (V1V2) of the HIV-1 envelope, but the mechanism of their elicitation has been unclear. Here we define the developmental pathway by which such antibodies are generated and ...

    Antibodies capable of neutralizing HIV-1 often target variable regions 1 and 2 (V1V2) of the HIV-1 envelope, but the mechanism of their elicitation has been unclear. Here we define the developmental pathway by which such antibodies are generated and acquire the requisite molecular characteristics for neutralization. Twelve somatically related neutralizing antibodies (CAP256-VRC26.01-12) were isolated from donor CAP256 (from the Centre for the AIDS Programme of Research in South Africa (CAPRISA)); each antibody contained the protruding tyrosine-sulphated, anionic antigen-binding loop (complementarity-determining region (CDR) H3) characteristic of this category of antibodies. Their unmutated ancestor emerged between weeks 30-38 post-infection with a 35-residue CDR H3, and neutralized the virus that superinfected this individual 15 weeks after initial infection. Improved neutralization breadth and potency occurred by week 59 with modest affinity maturation, and was preceded by extensive diversification of the virus population. HIV-1 V1V2-directed neutralizing antibodies can thus develop relatively rapidly through initial selection of B cells with a long CDR H3, and limited subsequent somatic hypermutation. These data provide important insights relevant to HIV-1 vaccine development.


    Organizational Affiliation

    1] Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA [2].




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CAP256-VRC26.03 heavy chain
H
255N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CAP256-VRC26.03 light chain
L
217N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TYS
Query on TYS
H
L-PEPTIDE LINKINGC9 H11 N O6 STYR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.69 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.203 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 99.023α = 90.00
b = 70.773β = 116.69
c = 87.539γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
PHENIXrefinement
PHASERphasing
SERGUIdata collection
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-02-26
    Type: Initial release
  • Version 1.1: 2014-04-02
    Type: Database references
  • Version 1.2: 2014-05-14
    Type: Database references