6MCO

Crystal structure of the B41 SOSIP.664 Env trimer with PGT124 and 35O22 Fabs, in P23 space group

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.53 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.306 
  • R-Value Observed: 0.307 

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Literature

Capturing the inherent structural dynamics of the HIV-1 envelope glycoprotein fusion peptide.

Kumar, S., Sarkar, A., Pugach, P., Sanders, R.W., Moore, J.P., Ward, A.B., Wilson, I.A.

(2019) Nat Commun 10: 763-763

  • DOI: 10.1038/s41467-019-08738-5
  • Primary Citation of Related Structures:  
    6MCO, 6MDT, 6ME1

  • PubMed Abstract: 

    • The N-terminal fusion peptide (FP) of the human immunodeficiency virus (HIV)-1 envelope glycoprotein (Env) gp41 subunit plays a critical role in cell entry. However, capturing the structural flexibility in the unbound FP is challenging in the native Env trimer ...

    The N-terminal fusion peptide (FP) of the human immunodeficiency virus (HIV)-1 envelope glycoprotein (Env) gp41 subunit plays a critical role in cell entry. However, capturing the structural flexibility in the unbound FP is challenging in the native Env trimer. Here, FP conformational isomerism is observed in two crystal structures of a soluble clade B transmitted/founder virus B41 SOSIP.664 Env with broadly neutralizing antibodies (bNAbs) PGT124 and 35O22 to aid in crystallization and that are not specific for binding to the FP. Large rearrangements in the FP and fusion peptide proximal region occur around M530, which remains anchored in the tryptophan clasp (gp41 W623, W628, W631) in the B41 Env prefusion state. Further, we redesigned the FP at position 518 to reinstate the bNAb VRC34.01 epitope. These findings provide further structural evidence for the dynamic nature of the FP and how a bNAb epitope can be restored during vaccine design.

    Organizational Affiliation: 

    Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA, 92037, USA. wilson@scripps.edu.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Transmembrane protein gp41A [auth B]153Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: env
UniProt
Find proteins for B3UES2 (Human immunodeficiency virus 1)
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Go to UniProtKB:  B3UES2
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UniProt GroupB3UES2
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
35O22 Fab heavy chainB [auth D]243Homo sapiensMutation(s): 0 
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
35O22 Fab light chainC [auth E]216Homo sapiensMutation(s): 0 
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Surface protein gp120D [auth G]482Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: env
UniProt
Find proteins for B3UF58 (Human immunodeficiency virus 1)
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Go to UniProtKB:  B3UF58
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UniProt GroupB3UF58
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
PGT124 Fab heavy chainE [auth H]236Homo sapiensMutation(s): 0 
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
PGT124 Fab light chainF [auth L]214Homo sapiensMutation(s): 0 
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Oligosaccharides

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Entity ID: 7
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-mannopyranose-(1-2)-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-glucopyranoseG [auth A]6N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G56014GC
GlyCosmos:  G56014GC
GlyGen:  G56014GC
Entity ID: 8
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseH [auth C],
J [auth I],
Q		2N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Entity ID: 9
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-mannopyranose-(1-2)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseI [auth F]7N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G60966ZH
GlyCosmos:  G60966ZH
GlyGen:  G60966ZH
Entity ID: 10
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
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-glucopyranoseK [auth J],
M		4N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G22573RC
GlyCosmos:  G22573RC
GlyGen:  G22573RC
Entity ID: 11
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseL [auth K],
N,
O,
U		3N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G15407YE
GlyCosmos:  G15407YE
GlyGen:  G15407YE
Entity ID: 12
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]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-glucopyranoseP 8N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G80966KZ
GlyCosmos:  G80966KZ
GlyGen:  G80966KZ
Entity ID: 13
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseR 4N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G81315DD
GlyCosmos:  G81315DD
GlyGen:  G81315DD
Entity ID: 14
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
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-glucopyranoseS 5N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G22768VO
GlyCosmos:  G22768VO
GlyGen:  G22768VO
Entity ID: 15
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
beta-D-mannopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseT 3N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G44266EX
GlyCosmos:  G44266EX
GlyGen:  G44266EX
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.53 Å
  • R-Value Free: 0.322 
  • R-Value Work: 0.306 
  • R-Value Observed: 0.307 
  • Space Group: P 2 3
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 212.326α = 90
b = 212.326β = 90
c = 212.326γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data scaling
HKL-2000data scaling
PHENIXmodel building
HKL-2000data reduction
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-27
    Type: Initial release
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary