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- PDB-5aco: Cryo-EM structure of PGT128 Fab in complex with BG505 SOSIP.664 E... -

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Basic information

Entry
Database: PDB / ID: 5aco
TitleCryo-EM structure of PGT128 Fab in complex with BG505 SOSIP.664 Env trimer
Components
  • (HIV-1 ENVELOPE ...) x 2
  • (PGT128 FAB) x 2
KeywordsVIRAL PROTEIN / IMMUNE SYSTEM / HIV-1 / ENV / BNAB / ANTIBODY / PGT128
Function / homology
Function and homology information


positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / virus-mediated perturbation of host defense response / fusion of virus membrane with host endosome membrane / viral envelope ...positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / virus-mediated perturbation of host defense response / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / apoptotic process / host cell plasma membrane / structural molecule activity / virion membrane / identical protein binding / plasma membrane
Similarity search - Function
Envelope glycoprotein Gp160 / Retroviral envelope protein / Retroviral envelope protein GP41-like / Gp120 core superfamily / Envelope glycoprotein GP120 / Human immunodeficiency virus 1, envelope glycoprotein Gp120
Similarity search - Domain/homology
Envelope glycoprotein gp160
Similarity search - Component
Biological speciesHUMAN IMMUNODEFICIENCY VIRUS 1
HOMO SAPIENS (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.36 Å
AuthorsLee, J.H. / Ward, A.B.
CitationJournal: Structure / Year: 2015
Title: Model Building and Refinement of a Natively Glycosylated HIV-1 Env Protein by High-Resolution Cryoelectron Microscopy.
Authors: Jeong Hyun Lee / Natalia de Val / Dmitry Lyumkis / Andrew B Ward /
Abstract: Secretory and membrane proteins from mammalian cells undergo post-translational modifications, including N-linked glycosylation, which can result in a large number of possible glycoforms. This sample ...Secretory and membrane proteins from mammalian cells undergo post-translational modifications, including N-linked glycosylation, which can result in a large number of possible glycoforms. This sample heterogeneity can be problematic for structural studies, particularly X-ray crystallography. Thus, crystal structures of heavily glycosylated proteins such as the HIV-1 Env viral spike protein have been determined by removing the majority of glycans. This step is most frequently carried out using Endoglycosidase H (EndoH) and requires that all expressed glycans be in the high-mannose form, which is often not the native glycoform. With significantly improved technologies in single-particle cryoelectron microscopy, we demonstrate that it is now possible to refine and build natively glycosylated HIV-1 Env structures in solution to 4.36 Å resolution. At this resolution we can now analyze the complete epitope of a broadly neutralizing antibody (bnAb), PGT128, in the context of the trimer expressed with native glycans.
History
DepositionAug 17, 2015Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 30, 2015Provider: repository / Type: Initial release
Revision 1.1Oct 21, 2015Group: Database references
Revision 1.2Oct 3, 2018Group: Data collection / Category: em_software / Item: _em_software.image_processing_id / _em_software.name
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Other / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_database_status / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_validate_close_contact / struct_asym / struct_conn / struct_site / struct_site_gen
Item: _atom_site.Cartn_x / _atom_site.Cartn_y ..._atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.type_symbol / _chem_comp.name / _chem_comp.type / _pdbx_database_status.pdb_format_compatible / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_validate_close_contact.auth_asym_id_2 / _pdbx_validate_close_contact.auth_seq_id_2 / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_comp_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation

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Structure visualization

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  • Deposited structure unit
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  • Superimposition on EM map
  • EMDB-3121
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Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: HIV-1 ENVELOPE GLYCOPROTEIN
B: HIV-1 ENVELOPE GLYCOPROTEIN
C: HIV-1 ENVELOPE GLYCOPROTEIN
D: HIV-1 ENVELOPE GLYCOPROTEIN
E: HIV-1 ENVELOPE GLYCOPROTEIN
F: HIV-1 ENVELOPE GLYCOPROTEIN
G: PGT128 FAB
H: PGT128 FAB
I: PGT128 FAB
J: PGT128 FAB
K: PGT128 FAB
L: PGT128 FAB
hetero molecules


Theoretical massNumber of molelcules
Total (without water)391,45972
Polymers354,69012
Non-polymers36,76960
Water00
1


  • Idetical with deposited unit
  • defined by software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA

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Components

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HIV-1 ENVELOPE ... , 2 types, 6 molecules ACDBEF

#1: Protein HIV-1 ENVELOPE GLYCOPROTEIN


Mass: 53278.301 Da / Num. of mol.: 3 / Fragment: GP120, RESIDUES 30-505 / Mutation: YES
Source method: isolated from a genetically manipulated source
Details: THE ENV SEQUENCE IS FROM THE CLADE A VIRUS BG505, TRUNCATED AT RESIDUE 664 OF GP41, MUTATED TO HAVE THE N332 GLYCOSYLATION SITE, AND CONTAINS STABILIZING SOSIP MUTATIONS.
Source: (gene. exp.) HUMAN IMMUNODEFICIENCY VIRUS 1 / Gene: ENV / Variant: BG505 SOSIP.664 / Cell line (production host): HEK293 / Production host: HOMO SAPIENS (human) / References: UniProt: Q2N0S6
#2: Protein HIV-1 ENVELOPE GLYCOPROTEIN


Mass: 17146.482 Da / Num. of mol.: 3 / Fragment: GP41, RESIDUES 509-661 / Mutation: YES
Source method: isolated from a genetically manipulated source
Details: THE ENV SEQUENCE IS FROM THE CLADE A VIRUS BG505, TRUNCATED AT RESIDUE 664 OF GP41, MUTATED TO HAVE THE N332 GLYCOSYLATION SITE, AND CONTAINS STABILIZING SOSIP MUTATIONS.
Source: (gene. exp.) HUMAN IMMUNODEFICIENCY VIRUS 1 / Gene: ENV / Variant: BG505 SOSIP.664 / Cell line (production host): HEK293 / Production host: HOMO SAPIENS (human) / References: UniProt: Q2N0S6

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Antibody , 2 types, 6 molecules GHIJKL

#3: Antibody PGT128 FAB


Mass: 25580.701 Da / Num. of mol.: 3 / Fragment: HEAVY CHAIN OF FAB VARIABLE REGION
Source method: isolated from a genetically manipulated source
Details: THE FRAGMENT ANTIGEN BINDING (FAB) OF BNAB PGT128. / Source: (gene. exp.) HOMO SAPIENS (human) / Cell line (production host): HEK293 / Production host: HOMO SAPIENS (human)
#4: Antibody PGT128 FAB


Mass: 22224.572 Da / Num. of mol.: 3 / Fragment: LIGHT CHAIN OF FAB VARIABLE REGION
Source method: isolated from a genetically manipulated source
Details: THE FRAGMENT ANTIGEN BINDING (FAB) OF BNAB PGT128. / Source: (gene. exp.) HOMO SAPIENS (human) / Cell line (production host): HEK293 / Production host: HOMO SAPIENS (human)

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Sugars , 6 types, 60 molecules

#5: Polysaccharide
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 586.542 Da / Num. of mol.: 18
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5]/1-1-2/a4-b1_b4-c1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{}}}}LINUCSPDB-CARE
#6: Polysaccharide...
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 21
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}}LINUCSPDB-CARE
#7: Polysaccharide
alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-alpha-D- ...alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[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-glucopyranose


Type: oligosaccharide / Mass: 1235.105 Da / Num. of mol.: 6
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-2DManpa1-3[DManpa1-3DManpa1-6]DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/3,7,6/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1122h-1a_1-5]/1-1-2-3-3-3-3/a4-b1_b4-c1_c3-d1_c6-f1_d2-e1_f3-g1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(3+1)][a-D-Manp]{[(2+1)][a-D-Manp]{}}[(6+1)][a-D-Manp]{[(3+1)][a-D-Manp]{}}}}}}LINUCSPDB-CARE
#8: Polysaccharide alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-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-glucopyranose


Type: oligosaccharide / Mass: 910.823 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-3[DManpa1-6]DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/3,5,4/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1122h-1a_1-5]/1-1-2-3-3/a4-b1_b4-c1_c3-d1_c6-e1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(3+1)][a-D-Manp]{}[(6+1)][a-D-Manp]{}}}}}LINUCSPDB-CARE
#9: Polysaccharide alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D- ...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-glucopyranose


Type: oligosaccharide / Mass: 1721.527 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-2DManpa1-2DManpa1-3[DManpa1-2DManpa1-6[DManpa1-3]DManpa1-6]DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/3,10,9/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1122h-1a_1-5]/1-1-2-3-3-3-3-3-3-3/a4-b1_b4-c1_c3-d1_c6-g1_d2-e1_e2-f1_g3-h1_g6-i1_i2-j1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(3+1)][a-D-Manp]{[(2+1)][a-D-Manp]{[(2+1)][a-D-Manp]{}}}[(6+1)][a-D-Manp]{[(3+1)][a-D-Manp]{}[(6+1)][a-D-Manp]{[(2+1)][a-D-Manp]{}}}}}}}LINUCSPDB-CARE
#10: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 9
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: PGT128 FAB BOUND TO BG505 SOSIP.664 ENV TRIMER / Type: COMPLEX
Buffer solutionName: 50 MM TRIS, 150 MM NACL, 0.675 MM DDM / pH: 7.4 / Details: 50 MM TRIS, 150 MM NACL, 0.675 MM DDM
SpecimenConc.: 2.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: HOLEY CARBON
VitrificationInstrument: HOMEMADE PLUNGER / Cryogen name: ETHANE / Details: FROZEN IN LIQUID ETHANE AT 4 DEGREES C.

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS / Date: Oct 7, 2014 / Details: IMAGED ON FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 22500 X / Calibrated magnification: 22500 X / Nominal defocus max: 3500 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm
Specimen holderTilt angle min: 0 °
Image recordingElectron dose: 35 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)
Image scansNum. digital images: 2000

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Processing

EM softwareName: RELION / Category: 3D reconstruction
CTF correctionDetails: WHOLE MICROGRAPH
SymmetryPoint symmetry: C3 (3 fold cyclic)
3D reconstructionMethod: MAXIMUM LIKELIHOOD / Resolution: 4.36 Å / Num. of particles: 92095 / Nominal pixel size: 1.31 Å / Actual pixel size: 1.31 Å
Details: SUBMISSION BASED ON EXPERIMENTAL DATA FROM EMDB EMD-3121. (DEPOSITION ID: 13671).
Symmetry type: POINT
Atomic model buildingProtocol: OTHER / Space: REAL / Details: METHOD--GLOBAL REFINEMENT PROTOCOL--CRYOEM
RefinementHighest resolution: 4.36 Å
Refinement stepCycle: LAST / Highest resolution: 4.36 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms18852 0 2445 0 21297

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