4R2G

Crystal Structure of PGT124 Fab bound to HIV-1 JRCSF gp120 core and to CD4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.28 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.210 

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This is version 2.0 of the entry. See complete history


Literature

Structural Evolution of Glycan Recognition by a Family of Potent HIV Antibodies.

Garces, F.Sok, D.Kong, L.McBride, R.Kim, H.J.Saye-Francisco, K.F.Julien, J.P.Hua, Y.Cupo, A.Moore, J.P.Paulson, J.C.Ward, A.B.Burton, D.R.Wilson, I.A.

(2014) Cell 159: 69-79

  • DOI: https://doi.org/10.1016/j.cell.2014.09.009
  • Primary Citation of Related Structures:  
    4R26, 4R2G

  • PubMed Abstract: 

    The HIV envelope glycoprotein (Env) is densely covered with self-glycans that should help shield it from recognition by the human immune system. Here, we examine how a particularly potent family of broadly neutralizing antibodies (Abs) has evolved common and distinct structural features to counter the glycan shield and interact with both glycan and protein components of HIV Env. The inferred germline antibody already harbors potential binding pockets for a glycan and a short protein segment. Affinity maturation then leads to divergent evolutionary branches that either focus on a single glycan and protein segment (e.g., Ab PGT124) or engage multiple glycans (e.g., Abs PGT121-123). Furthermore, other surrounding glycans are avoided by selecting an appropriate initial antibody shape that prevents steric hindrance. Such molecular recognition lessons are important for engineering proteins that can recognize or accommodate glycans.


  • Organizational Affiliation

    Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA; International AIDS Vaccine Initiative Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA; Scripps Center for HIV/AIDS Vaccine Immunology & Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Surface protein gp160A [auth E],
N [auth O],
O [auth A],
P [auth K]
309Human immunodeficiency virus type 1 (JRCSF ISOLATE)Mutation(s): 0 
Gene Names: env
UniProt
Find proteins for P20871 (Human immunodeficiency virus type 1 group M subtype B (isolate JRCSF))
Explore P20871 
Go to UniProtKB:  P20871
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP20871
Glycosylation
Glycosylation Sites: 9
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
T-cell surface glycoprotein CD4B [auth F],
E [auth B],
H,
K [auth L]
184Homo sapiensMutation(s): 0 
Gene Names: CD4
UniProt & NIH Common Fund Data Resources
Find proteins for P01730 (Homo sapiens)
Explore P01730 
Go to UniProtKB:  P01730
PHAROS:  P01730
GTEx:  ENSG00000010610 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP01730
Sequence Annotations
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
PGT124 Light ChainC [auth P],
F [auth C],
I,
L [auth M]
214Homo sapiensMutation(s): 0 
Gene Names: IGL@IGLC3
UniProt & NIH Common Fund Data Resources
Find proteins for P0DOY3 (Homo sapiens)
Explore P0DOY3 
Go to UniProtKB:  P0DOY3
GTEx:  ENSG00000211679 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0DOY3
Sequence Annotations
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
PGT124 Heavy ChainD [auth Q],
G [auth D],
J,
M [auth N]
236Homo sapiensMutation(s): 0 
Gene Names: IGH@
UniProt
Find proteins for P0DOX5 (Homo sapiens)
Explore P0DOX5 
Go to UniProtKB:  P0DOX5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0DOX5
Sequence Annotations
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  • Reference Sequence
Oligosaccharides

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Entity ID: 5
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseQ [auth G],
R,
S,
V
10N-Glycosylation
Glycosylation Resources
GlyTouCan:  G40702WU
GlyCosmos:  G40702WU
GlyGen:  G40702WU
Entity ID: 6
MoleculeChains Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
T, U
2N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download Ideal Coordinates CCD File 
AA [auth E]
AB [auth K]
BA [auth E]
BB [auth K]
CA [auth E]
AA [auth E],
AB [auth K],
BA [auth E],
BB [auth K],
CA [auth E],
CB [auth K],
DA [auth E],
JA [auth O],
KA [auth O],
LA [auth O],
MA [auth O],
NA [auth O],
OA [auth O],
PA [auth O],
RA [auth A],
SA [auth A],
TA [auth A],
UA [auth A],
VA [auth A],
W [auth E],
WA [auth A],
X [auth E],
Y [auth E],
YA [auth K],
Z [auth E],
ZA [auth K]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
GOL
Query on GOL

Download Ideal Coordinates CCD File 
FA [auth Q],
GA [auth D],
HA [auth J],
IA [auth N]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
DB [auth K],
EA [auth E],
QA [auth O],
XA [auth A]
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.28 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.210 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 164.406α = 90
b = 165.438β = 90
c = 229.712γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-10-08
    Type: Initial release
  • Version 1.1: 2014-10-15
    Changes: Derived calculations
  • Version 1.2: 2017-06-21
    Changes: Database references, Source and taxonomy, Structure summary
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary