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- PDB-1gc1: HIV-1 GP120 CORE COMPLEXED WITH CD4 AND A NEUTRALIZING HUMAN ANTIBODY -

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Basic information

Entry
Database: PDB / ID: 1gc1
TitleHIV-1 GP120 CORE COMPLEXED WITH CD4 AND A NEUTRALIZING HUMAN ANTIBODY
Components
  • (ANTIBODY 17B) x 2
  • CD4
  • ENVELOPE PROTEIN GP120
KeywordsViral protein/receptor/Immune system / COMPLEX (HIV ENVELOPE PROTEIN-CD4-FAB) / HIV-1 EXTERIOR ENVELOPE GP120 / T-CELL SURFACE GLYCOPROTEIN CD4 / ANTIGEN-BINDING FRAGMENT OF HUMAN IMMUNOGLOBULIN 17B / GLYCOSYLATED PROTEIN / Viral protein-receptor-Immune system COMPLEX
Function / homology
Function and homology information


helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / maintenance of protein location in cell / T cell selection / Synthesis and processing of ENV and VPU / symbiont-mediated evasion of host immune response / MHC class II protein binding / positive regulation of kinase activity / cellular response to granulocyte macrophage colony-stimulating factor stimulus ...helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / maintenance of protein location in cell / T cell selection / Synthesis and processing of ENV and VPU / symbiont-mediated evasion of host immune response / MHC class II protein binding / positive regulation of kinase activity / cellular response to granulocyte macrophage colony-stimulating factor stimulus / interleukin-15-mediated signaling pathway / positive regulation of establishment of T cell polarity / positive regulation of monocyte differentiation / Nef Mediated CD4 Down-regulation / Alpha-defensins / regulation of T cell activation / Other interleukin signaling / extracellular matrix structural constituent / T cell receptor complex / enzyme-linked receptor protein signaling pathway / Dectin-2 family / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / macrophage differentiation / regulation of calcium ion transport / Generation of second messenger molecules / T cell differentiation / Co-inhibition by PD-1 / positive regulation of protein kinase activity / Binding and entry of HIV virion / coreceptor activity / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / cell surface receptor protein tyrosine kinase signaling pathway / protein tyrosine kinase binding / host cell endosome membrane / actin filament organization / Vpu mediated degradation of CD4 / clathrin-coated endocytic vesicle membrane / calcium-mediated signaling / Assembly Of The HIV Virion / Budding and maturation of HIV virion / positive regulation of T cell activation / MHC class II protein complex binding / transmembrane signaling receptor activity / Downstream TCR signaling / Cargo recognition for clathrin-mediated endocytosis / signaling receptor activity / Clathrin-mediated endocytosis / positive regulation of protein phosphorylation / virus receptor activity / defense response to Gram-negative bacterium / clathrin-dependent endocytosis of virus by host cell / adaptive immune response / positive regulation of canonical NF-kappaB signal transduction / positive regulation of viral entry into host cell / early endosome / cell surface receptor signaling pathway / positive regulation of ERK1 and ERK2 cascade / positive regulation of MAPK cascade / cell adhesion / viral protein processing / immune response / membrane raft / endoplasmic reticulum lumen / symbiont entry into host cell / external side of plasma membrane / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / lipid binding / viral envelope / endoplasmic reticulum membrane / protein kinase binding / positive regulation of DNA-templated transcription / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / enzyme binding / signal transduction / protein homodimerization activity / zinc ion binding / identical protein binding / membrane / plasma membrane
Similarity search - Function
CD4, extracellular / T cell CD4 receptor C-terminal region / CD4, extracellular / T cell CD4 receptor C terminal region / T-cell surface antigen CD4 / Immunoglobulin C2-set / Immunoglobulin C2-set domain / HIV Envelope Protein Gp120; Chain G / Human immunodeficiency virus 1, Gp160, envelope glycoprotein / Immunoglobulin ...CD4, extracellular / T cell CD4 receptor C-terminal region / CD4, extracellular / T cell CD4 receptor C terminal region / T-cell surface antigen CD4 / Immunoglobulin C2-set / Immunoglobulin C2-set domain / HIV Envelope Protein Gp120; Chain G / Human immunodeficiency virus 1, Gp160, envelope glycoprotein / Immunoglobulin / Immunoglobulin domain / Envelope glycoprotein Gp160 / Retroviral envelope protein / Retroviral envelope protein GP41-like / Gp120 core superfamily / Envelope glycoprotein GP120 / Human immunodeficiency virus 1, envelope glycoprotein Gp120 / Immunoglobulin subtype 2 / Immunoglobulin C-2 Type / Beta Complex / Immunoglobulin V-Type / Immunoglobulin V-set domain / Immunoglobulin subtype / Immunoglobulin / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
T-cell surface glycoprotein CD4 / Envelope glycoprotein gp160
Similarity search - Component
Biological speciesHuman immunodeficiency virus 1
Homo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT, MIR, DENSITY MODIFICATION / Resolution: 2.5 Å
AuthorsKwong, P.D. / Wyatt, R. / Robinson, J. / Sweet, R.W. / Sodroski, J. / Hendrickson, W.A.
CitationJournal: Nature / Year: 1998
Title: Structure of an HIV gp120 envelope glycoprotein in complex with the CD4 receptor and a neutralizing human antibody.
Authors: Kwong, P.D. / Wyatt, R. / Robinson, J. / Sweet, R.W. / Sodroski, J. / Hendrickson, W.A.
History
DepositionJun 15, 1998Processing site: BNL
Revision 1.0Jul 8, 1998Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 1.3Sep 18, 2013Group: Derived calculations
Revision 1.4Jun 28, 2017Group: Database references / Other / Source and taxonomy
Category: entity_src_gen / pdbx_database_status ...entity_src_gen / pdbx_database_status / struct_ref / struct_ref_seq / struct_ref_seq_dif
Item: _pdbx_database_status.process_site
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Non-polymer description / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / database_PDB_caveat / entity / pdbx_branch_scheme / pdbx_chem_comp_identifier / 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_chiral / struct_asym / struct_conn / struct_site / struct_site_gen
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _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.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.type / _pdbx_struct_assembly_gen.asym_id_list / _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_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Aug 9, 2023Group: Advisory / Database references ...Advisory / Database references / Derived calculations / Refinement description / Structure summary
Category: chem_comp / database_2 ...chem_comp / database_2 / pdbx_initial_refinement_model / pdbx_unobs_or_zero_occ_residues / struct_sheet
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_sheet.number_strands
Revision 2.2Oct 16, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
G: ENVELOPE PROTEIN GP120
C: CD4
L: ANTIBODY 17B
H: ANTIBODY 17B
hetero molecules


Theoretical massNumber of molelcules
Total (without water)106,80315
Polymers103,7854
Non-polymers3,01811
Water10,863603
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)71.640, 88.130, 196.700
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number17
Space group name H-MP2221

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Components

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Antibody , 3 types, 3 molecules CLH

#2: Antibody CD4


Mass: 20503.260 Da / Num. of mol.: 1 / Fragment: D1D2, N-TERMINAL TWO DOMAIN FRAGMENT / Mutation: S184N, I185T
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Cell line (production host): CHO / Production host: Cricetulus griseus (Chinese hamster) / References: UniProt: P01730
#3: Antibody ANTIBODY 17B


Mass: 23368.818 Da / Num. of mol.: 1 / Fragment: ANTIGEN-BINDING FRAGMENT, FAB
Source method: isolated from a genetically manipulated source
Details: MONOCLONAL ANTIBODY 17B BINDS TO A CD4-INDUCED SITE ON GP120
Source: (gene. exp.) Homo sapiens (human)
Description: EPSTEIN-BARR VIRUS IMMORTALIZED B-CELL CLONE FUSED WITH A MURINE B-CELL FUSION PARTNER
Production host: Mus musculus (house mouse)
#4: Antibody ANTIBODY 17B


Mass: 24483.471 Da / Num. of mol.: 1 / Fragment: ANTIGEN-BINDING FRAGMENT, FAB
Source method: isolated from a genetically manipulated source
Details: MONOCLONAL ANTIBODY 17B BINDS TO A CD4-INDUCED SITE ON GP120
Source: (gene. exp.) Homo sapiens (human)
Description: EPSTEIN-BARR VIRUS IMMORTALIZED B-CELL CLONE FUSED WITH A MURINE B-CELL FUSION PARTNER
Production host: Mus musculus (house mouse)

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Protein / Non-polymers , 2 types, 604 molecules G

#1: Protein ENVELOPE PROTEIN GP120


Mass: 35429.160 Da / Num. of mol.: 1 / Fragment: CORE
Mutation: (GARS) SUBSTITUTION AT THE N TERMINUS, GLY ALA GLY SUBSTITUTIONS FOR THE V1/V2 AND V3 LOOPS
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human immunodeficiency virus 1 / Genus: Lentivirus / Strain: CLADE B
Description: SECRETED FROM DROSOPHILA SCHNEIDER 2 LINES UNDER CONTROL OF AN INDUCIBLE METALLOTHIONEIN PROMOTER
Gene: env / Organ: OVARY / Variant: HXBC2 / Production host: Drosophila melanogaster (fruit fly) / References: UniProt: P04578
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 603 / Source method: isolated from a natural source / Formula: H2O

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Sugars , 2 types, 11 molecules

#5: Polysaccharide
alpha-L-fucopyranose-(1-6)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 367.349 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
LFucpa1-6DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,2,1/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5]/1-2/a6-b1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][a-D-GlcpNAc]{[(6+1)][a-L-Fucp]{}}}LINUCSPDB-CARE
#6: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 7
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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Details

Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 3 Å3/Da / Density % sol: 59 %
Crystal growMethod: vapor diffusion / pH: 7
Details: VAPOUR DIFFUSION CRYSTALLIZATION: 0.5 UL OF PROTEIN (~10MG/ML IN 350 MM NACL, 5 MM TRISCL PH 7.0) + 0.4 UL OF 0.1 M NACITRATE, 0.02 M NAHEPES, 10% ISOPROPANOL, 10.5% MONOMETHYL-PEG 5000, 0. ...Details: VAPOUR DIFFUSION CRYSTALLIZATION: 0.5 UL OF PROTEIN (~10MG/ML IN 350 MM NACL, 5 MM TRISCL PH 7.0) + 0.4 UL OF 0.1 M NACITRATE, 0.02 M NAHEPES, 10% ISOPROPANOL, 10.5% MONOMETHYL-PEG 5000, 0.0075% SEAPREP AGAROSE, PH 6.4 OVER A RESERVOIR OF 0.35 M NACL, 0.1 M NACITRATE, 0.02 M NAHEPES, 10% ISOPROPANOL, 10.5% MONOMETHYL-PEG 5000, PH 6.4, vapor diffusion
PH range: 6.4-7.0
Crystal
*PLUS
Crystal grow
*PLUS
Temperature: 37 ℃ / pH: 6.4 / Method: vapor diffusion, hanging drop / Details: Kwong, P.D., (1999) J. Biol. Chem., 274, 4115.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formula
110 mg/mlprotein1drop
20.1 Msodium citrate1drop
30.02 MNa HEPES1drop
410 %isopropanol1drop
510.5 %mPEG50001drop
60.0075 %SeaPrep agarose1drop
70.35 M1reservoirNaCl
80.1 Msodium citrate1reservoir
90.02 MHEPES1reservoir
1010 %isopropanol1reservoir
1110.5 %mPEG50001reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X4A / Wavelength: 1.00614
DetectorType: FUJI / Detector: IMAGE PLATE / Date: Aug 1, 1996 / Details: MIRRORS
RadiationMonochromator: SILICON CRYSTAL / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.00614 Å / Relative weight: 1
ReflectionResolution: 2.5→20 Å / Num. obs: 37724 / % possible obs: 86 % / Observed criterion σ(I): -0.5 / Redundancy: 3 % / Rsym value: 0.093 / Net I/σ(I): 9.17
Reflection shellResolution: 2.5→2.59 Å / Redundancy: 1.56 % / Mean I/σ(I) obs: 2.17 / Rsym value: 0.247 / % possible all: 62.8
Reflection
*PLUS
% possible obs: 86 % / Num. measured all: 113966 / Rmerge(I) obs: 0.093

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Processing

Software
NameVersionClassification
DENZOdata reduction
SCALEPACKdata scaling
X-PLOR3.8model building
X-PLOR3.8refinement
X-PLOR3.8phasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT, MIR, DENSITY MODIFICATION
Starting model: PDB ENTRIES 1HIL, 1CDH AND 3CD4

1hil

1cdh

3cd4


Resolution: 2.5→5 Å / Data cutoff high absF: 100000 / Data cutoff low absF: 0.1 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 2
RfactorNum. reflection% reflectionSelection details
Rfree0.302 1430 5 %RANDOM
Rwork0.2103 ---
obs0.2103 28620 74.9 %-
Displacement parametersBiso mean: 21 Å2
Baniso -1Baniso -2Baniso -3
1-0 Å20 Å20 Å2
2--0 Å20 Å2
3---0 Å2
Refine analyzeLuzzati d res low obs: 5 Å
Refinement stepCycle: LAST / Resolution: 2.5→5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms7080 0 194 603 7877
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONx_bond_d0.007
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.59
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it1.331
X-RAY DIFFRACTIONx_mcangle_it2.311.5
X-RAY DIFFRACTIONx_scbond_it1.971.5
X-RAY DIFFRACTIONx_scangle_it3.012
LS refinement shellResolution: 2.5→2.58 Å / Total num. of bins used: 10
RfactorNum. reflection% reflection
Rfree0.3878 92 5.7 %
Rwork0.2876 1518 -
obs--42.3 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PARAM3_MOD.CHOTOPHCSDX.PRO
X-RAY DIFFRACTION2PARAMCSDX.MISCTOPH3.CHO
X-RAY DIFFRACTION3PARAMCSDX_MOD.PROTOPHCSDX.MISC
X-RAY DIFFRACTION4PARAM19.SOL
Software
*PLUS
Name: X-PLOR / Version: 3.8 / Classification: refinement
Refinement
*PLUS
Rfactor Rfree: 0.3026
Solvent computation
*PLUS
Displacement parameters
*PLUS

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