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- PDB-1yyl: crystal structure of CD4M33, a scorpion-toxin mimic of CD4, in co... -

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Basic information

Entry
Database: PDB / ID: 1yyl
Titlecrystal structure of CD4M33, a scorpion-toxin mimic of CD4, in complex with HIV-1 YU2 gp120 envelope glycoprotein and anti-HIV-1 antibody 17b
Components
  • (antibody 17b ...) x 2
  • CD4M33, scorpion-toxin mimic of CD4
  • Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120)
KeywordsViral protein/Immune system / HIV-1 / gp120 / YU2 / scorpion toxin / CD4 mimic / CD4M33 / antibody / Viral protein-Immune system COMPLEX
Function / homology
Function and homology information


Dectin-2 family / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / virus-mediated perturbation of host defense response / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane ...Dectin-2 family / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of establishment of T cell polarity / virus-mediated perturbation of host defense response / host cell endosome membrane / clathrin-dependent endocytosis of virus by host cell / viral protein processing / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / membrane
Similarity search - Function
HIV Envelope Protein Gp120; Chain G / Human immunodeficiency virus 1, Gp160, envelope glycoprotein / Envelope glycoprotein Gp160 / Retroviral envelope protein / Retroviral envelope protein GP41-like / Gp120 core superfamily / Envelope glycoprotein GP120 / Human immunodeficiency virus 1, envelope glycoprotein Gp120 / Beta Complex / Immunoglobulins ...HIV Envelope Protein Gp120; Chain G / Human immunodeficiency virus 1, Gp160, envelope glycoprotein / Envelope glycoprotein Gp160 / Retroviral envelope protein / Retroviral envelope protein GP41-like / Gp120 core superfamily / Envelope glycoprotein GP120 / Human immunodeficiency virus 1, envelope glycoprotein Gp120 / Beta Complex / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Envelope glycoprotein gp160
Similarity search - Component
Biological speciesHuman immunodeficiency virus 1
Homo sapiens (human)
synthetic construct (others)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.75 Å
AuthorsHuang, C.C. / Stricher, F. / Martin, L. / Decker, J.M. / Majeed, S. / Barthe, P. / Hendrickson, W.A. / Robinson, J. / Roumestand, C. / Sodroski, J. ...Huang, C.C. / Stricher, F. / Martin, L. / Decker, J.M. / Majeed, S. / Barthe, P. / Hendrickson, W.A. / Robinson, J. / Roumestand, C. / Sodroski, J. / Wyatt, R. / Shaw, G.M. / Vita, C. / Kwong, P.D.
CitationJournal: Structure / Year: 2005
Title: Scorpion-toxin mimics of CD4 in complex with human immunodeficiency virus gp120 crystal structures, molecular mimicry, and neutralization breadth.
Authors: Huang, C.C. / Stricher, F. / Martin, L. / Decker, J.M. / Majeed, S. / Barthe, P. / Hendrickson, W.A. / Robinson, J. / Roumestand, C. / Sodroski, J. / Wyatt, R. / Shaw, G.M. / Vita, C. / Kwong, P.D.
History
DepositionFeb 25, 2005Deposition site: RCSB / Processing site: PDBJ
Revision 1.0May 3, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 1.3Jun 14, 2017Group: Database references / Source and taxonomy / Structure summary
Category: entity / entity_name_com ...entity / entity_name_com / entity_src_gen / pdbx_entity_src_syn / struct_ref / struct_ref_seq / struct_ref_seq_dif
Item: _entity.pdbx_description / _entity.pdbx_fragment ..._entity.pdbx_description / _entity.pdbx_fragment / _entity.pdbx_mutation / _entity_name_com.name / _pdbx_entity_src_syn.ncbi_taxonomy_id / _pdbx_entity_src_syn.organism_scientific / _pdbx_entity_src_syn.pdbx_beg_seq_num / _pdbx_entity_src_syn.pdbx_end_seq_num / _struct_ref_seq_dif.align_id / _struct_ref_seq_dif.details
Revision 1.4Dec 11, 2019Group: Derived calculations / Category: struct_conn
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_chem_comp_identifier / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / 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_atom_id / _atom_site.auth_comp_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_nonpoly_scheme.entity_id / _pdbx_nonpoly_scheme.mon_id / _pdbx_nonpoly_scheme.pdb_mon_id / _struct_asym.entity_id / _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 2.1Oct 25, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
G: Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120)
L: antibody 17b light chain
H: antibody 17b heavy chain
M: CD4M33, scorpion-toxin mimic of CD4
P: Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120)
Q: antibody 17b light chain
R: antibody 17b heavy chain
S: CD4M33, scorpion-toxin mimic of CD4
hetero molecules


Theoretical massNumber of molelcules
Total (without water)174,81124
Polymers171,2718
Non-polymers3,53916
Water5,837324
1
G: Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120)
L: antibody 17b light chain
H: antibody 17b heavy chain
M: CD4M33, scorpion-toxin mimic of CD4
hetero molecules


Theoretical massNumber of molelcules
Total (without water)87,40512
Polymers85,6364
Non-polymers1,7708
Water724
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
P: Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120)
Q: antibody 17b light chain
R: antibody 17b heavy chain
S: CD4M33, scorpion-toxin mimic of CD4
hetero molecules


Theoretical massNumber of molelcules
Total (without water)87,40512
Polymers85,6364
Non-polymers1,7708
Water724
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)51.516, 157.841, 109.920
Angle α, β, γ (deg.)90.00, 93.55, 90.00
Int Tables number4
Space group name H-MP1211

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Components

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Antibody , 2 types, 4 molecules LQHR

#2: Antibody antibody 17b light chain


Mass: 23399.898 Da / Num. of mol.: 2 / Fragment: ANTIGEN-BINDING FRAGMENT, FAB
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
Description: EPSTEIN-BARR VIRUS IMMORTALIZED B-CELLCLONE FUSED WITH A MURINE B-CELL FUSION PARTNER
Production host: Mus musculus (house mouse)
#3: Antibody antibody 17b heavy chain


Mass: 24457.387 Da / Num. of mol.: 2 / Fragment: ANTIGEN-BINDING FRAGMENT, FAB
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
Description: EPSTEIN-BARR VIRUS IMMORTALIZED B-CELLCLONE FUSED WITH A MURINE B-CELL FUSION PARTNER
Production host: Mus musculus (house mouse)

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Protein / Protein/peptide / Sugars / Non-polymers , 4 types, 344 molecules GPMS

#1: Protein Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120),Exterior membrane glycoprotein(GP120) / HIV-1 YU2 gp120 / Envelope glycoprotein gp160


Mass: 34838.691 Da / Num. of mol.: 2
Fragment: UNP residues 82-126,UNP residues 191-293,UNP residues 325-479
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human immunodeficiency virus 1 / Genus: Lentivirus / Production host: Drosophila melanogaster (fruit fly) / References: UniProt: P35961
#4: Protein/peptide CD4M33, scorpion-toxin mimic of CD4


Mass: 2939.635 Da / Num. of mol.: 2 / Source method: obtained synthetically
Details: SYNTHETIC MINIPROTEIN (SOLID PHASE METHOD USING FMOC-PROTECTED AMINO ACIDS)
Source: (synth.) synthetic construct (others)
#5: 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 / N-Acetylglucosamine


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 16
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
#6: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 324 / Source method: isolated from a natural source / Formula: H2O

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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: 2.593 Å3/Da / Density % sol: 52.6 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 5.6
Details: PEG 4000, isopropanol, sodium citrate, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 22-ID / Wavelength: 1 Å
DetectorType: MARRESEARCH / Detector: CCD / Date: Jun 5, 2003
RadiationMonochromator: SI (220) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.75→20 Å / % possible obs: 91.8 % / Observed criterion σ(F): 0 / Observed criterion σ(I): -3 / Redundancy: 5 % / Biso Wilson estimate: 14.5 Å2 / Rmerge(I) obs: 0.126 / Rsym value: 0.126 / Net I/σ(I): 8.2
Reflection shellResolution: 2.75→2.85 Å / Redundancy: 2.1 % / Rmerge(I) obs: 0.278 / Mean I/σ(I) obs: 1.5 / Rsym value: 0.278 / % possible all: 46.4

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Processing

Software
NameVersionClassification
CNS1.1refinement
HKL-2000data reduction
SCALEPACKdata scaling
AMoREphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1RZK

1rzk


Resolution: 2.75→19.94 Å / Rfactor Rfree error: 0.004 / Data cutoff high absF: 193480.34 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.275 4002 10 %RANDOM
Rwork0.202 ---
obs0.202 39944 88 %-
all-45373 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 27.8683 Å2 / ksol: 0.340928 e/Å3
Displacement parametersBiso mean: 28.1 Å2
Baniso -1Baniso -2Baniso -3
1--9.87 Å20 Å21.44 Å2
2---1.11 Å20 Å2
3---10.99 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.45 Å0.33 Å
Luzzati d res low-5 Å
Luzzati sigma a0.58 Å0.43 Å
Refinement stepCycle: LAST / Resolution: 2.75→19.94 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms11822 0 224 324 12370
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.248
X-RAY DIFFRACTIONc_angle_deg2.4
X-RAY DIFFRACTIONc_dihedral_angle_d26.4
X-RAY DIFFRACTIONc_improper_angle_d1
LS refinement shellResolution: 2.75→2.92 Å / Rfactor Rfree error: 0.02 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.383 370 9.9 %
Rwork0.329 3370 -
obs--49.8 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2CARBOHYDRATE.PARAMCARBOHYDRATE.TOPPAR
X-RAY DIFFRACTION3WATER_REP.PARAMWATER_REP.TOPPAR
X-RAY DIFFRACTION4BIP.PARBIP.TOP

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