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- PDB-3agv: Crystal structure of a human IgG-aptamer complex -

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Basic information

Entry
Database: PDB / ID: 3agv
TitleCrystal structure of a human IgG-aptamer complex
Components
  • 5'-R(*GP*GP*AP*GP*GP*(UFT)P*GP*(CFZ)P*(UFT)P*(CFZ)P*(CFZ)P*GP*AP*AP*A*GP*GP*AP*AP*(CFZ)P*(UFT)P*(CFZ)P*(CFZ)P*A)-3'
  • Ig gamma-1 chain C region
KeywordsImmune System/RNA / IgG / RNA Aptamer / Immune System-RNA complex
Function / homology
Function and homology information


complement-dependent cytotoxicity / antibody-dependent cellular cytotoxicity / Fc-gamma receptor I complex binding / Classical antibody-mediated complement activation / Initial triggering of complement / immunoglobulin complex, circulating / IgG immunoglobulin complex / immunoglobulin receptor binding / FCGR activation / Role of phospholipids in phagocytosis ...complement-dependent cytotoxicity / antibody-dependent cellular cytotoxicity / Fc-gamma receptor I complex binding / Classical antibody-mediated complement activation / Initial triggering of complement / immunoglobulin complex, circulating / IgG immunoglobulin complex / immunoglobulin receptor binding / FCGR activation / Role of phospholipids in phagocytosis / complement activation, classical pathway / antigen binding / FCGR3A-mediated IL10 synthesis / Regulation of Complement cascade / FCGR3A-mediated phagocytosis / B cell receptor signaling pathway / Regulation of actin dynamics for phagocytic cup formation / antibacterial humoral response / Interleukin-4 and Interleukin-13 signaling / blood microparticle / adaptive immune response / extracellular space / extracellular exosome / extracellular region / plasma membrane
Similarity search - Function
Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulins / Immunoglobulin-like fold ...Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulins / Immunoglobulin-like fold / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
RNA / RNA (> 10) / Immunoglobulin heavy constant gamma 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.15 Å
AuthorsNomura, Y. / Sugiyama, S. / Sakamoto, T. / Miyakawa, S. / Adachi, H. / Takano, K. / Murakami, S. / Inoue, T. / Mori, Y. / Nakamura, Y. / Matsumura, H.
CitationJournal: Nucleic Acids Res. / Year: 2010
Title: Conformational plasticity of RNA for target recognition as revealed by the 2.15 A crystal structure of a human IgG-aptamer complex
Authors: Nomura, Y. / Sugiyama, S. / Sakamoto, T. / Miyakawa, S. / Adachi, H. / Takano, K. / Murakami, S. / Inoue, T. / Mori, Y. / Nakamura, Y. / Matsumura, H.
History
DepositionApr 8, 2010Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Nov 10, 2010Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / 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_struct_conn_angle / 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.name / _chem_comp.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _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
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Nov 1, 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
A: Ig gamma-1 chain C region
B: Ig gamma-1 chain C region
S: 5'-R(*GP*GP*AP*GP*GP*(UFT)P*GP*(CFZ)P*(UFT)P*(CFZ)P*(CFZ)P*GP*AP*AP*A*GP*GP*AP*AP*(CFZ)P*(UFT)P*(CFZ)P*(CFZ)P*A)-3'
U: 5'-R(*GP*GP*AP*GP*GP*(UFT)P*GP*(CFZ)P*(UFT)P*(CFZ)P*(CFZ)P*GP*AP*AP*A*GP*GP*AP*AP*(CFZ)P*(UFT)P*(CFZ)P*(CFZ)P*A)-3'
hetero molecules


Theoretical massNumber of molelcules
Total (without water)65,6238
Polymers63,4134
Non-polymers2,2104
Water4,558253
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)83.587, 107.238, 79.458
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number18
Space group name H-MP21212

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Components

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Protein / RNA chain , 2 types, 4 molecules ABSU

#1: Protein Ig gamma-1 chain C region / IgG


Mass: 23918.023 Da / Num. of mol.: 2 / Fragment: Fc fragment, residues 120-330
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli) / References: UniProt: P01857
#2: RNA chain 5'-R(*GP*GP*AP*GP*GP*(UFT)P*GP*(CFZ)P*(UFT)P*(CFZ)P*(CFZ)P*GP*AP*AP*A*GP*GP*AP*AP*(CFZ)P*(UFT)P*(CFZ)P*(CFZ)P*A)-3'


Mass: 7788.638 Da / Num. of mol.: 2 / Source method: obtained synthetically

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Sugars , 2 types, 2 molecules

#3: Polysaccharide alpha-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-2)-alpha-D-mannopyranose- ...alpha-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-alpha-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-alpha-D-mannopyranose


Type: oligosaccharide / Mass: 707.630 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGalpa1-4DGlcpNAca1-2DManpa1-6DManpa1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/3,4,3/[a1122h-1a_1-5][a2122h-1a_1-5_2*NCC/3=O][a2112h-1a_1-5]/1-1-2-3/a6-b1_b2-c1_c4-d1WURCSPDB2Glycan 1.1.0
[][a-D-Manp]{[(6+1)][a-D-Manp]{[(2+1)][a-D-GlcpNAc]{[(4+1)][a-D-Galp]{}}}}LINUCSPDB-CARE
#4: Polysaccharide beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose- ...beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-2)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[beta-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-alpha-D-glucopyranose


Type: oligosaccharide / Mass: 1422.297 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGalpb1-4DGlcpNAcb1-2DManpa1-6[DManpa1-3]DManpb1-4DGlcpNAcb1-4[LFucpb1-6]DGlcpNAca1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/6,8,7/[a2122h-1a_1-5_2*NCC/3=O][a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1122h-1a_1-5][a2112h-1b_1-5][a1221m-1b_1-5]/1-2-3-4-4-2-5-6/a4-b1_a6-h1_b4-c1_c3-d1_c6-e1_e2-f1_f4-g1WURCSPDB2Glycan 1.1.0
[][a-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(3+1)][a-D-Manp]{}[(6+1)][a-D-Manp]{[(2+1)][b-D-GlcpNAc]{[(4+1)][b-D-Galp]{}}}}}[(6+1)][b-L-Fucp]{}}LINUCSPDB-CARE

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Non-polymers , 2 types, 255 molecules

#5: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#6: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 253 / 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: 2.81 Å3/Da / Density % sol: 56.19 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 8
Details: The solution stirring technique with a rotary shaker produced the best diffracting crystals, pH 8, VAPOR DIFFUSION, SITTING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL41XU / Wavelength: 1 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Oct 7, 2007
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.15→30.4 Å / Num. obs: 38726 / % possible obs: 98.3 % / Redundancy: 5.1 % / Biso Wilson estimate: 19.9 Å2 / Rmerge(I) obs: 0.081
Reflection shellResolution: 2.15→2.23 Å / Redundancy: 5.1 % / Rmerge(I) obs: 0.433 / Mean I/σ(I) obs: 2.4 / Num. unique all: 3417 / % possible all: 89.1

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Processing

Software
NameVersionClassification
ADSCQuantumdata collection
MOLREPphasing
CNS1.2refinement
HKL-2000data reduction
HKL-2000data scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1FC1

1fc1


Resolution: 2.15→30.37 Å / Rfactor Rfree error: 0.007 / Data cutoff high absF: 68257.52 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Details: BULK SOLVENT MODEL USED
RfactorNum. reflection% reflectionSelection details
Rfree0.277 1800 5 %RANDOM
Rwork0.237 ---
obs0.237 36041 91.1 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 65.8389 Å2 / ksol: 0.4 e/Å3
Displacement parametersBiso mean: 54.6 Å2
Baniso -1Baniso -2Baniso -3
1--12.53 Å20 Å20 Å2
2---7.72 Å20 Å2
3---20.25 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.37 Å0.31 Å
Luzzati d res low-5 Å
Luzzati sigma a0.4 Å0.38 Å
Refinement stepCycle: LAST / Resolution: 2.15→30.37 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3097 916 147 253 4413
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.2
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d24.4
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d1.1
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it1.411.5
X-RAY DIFFRACTIONc_mcangle_it2.372
X-RAY DIFFRACTIONc_scbond_it4.452
X-RAY DIFFRACTIONc_scangle_it5.472.5
LS refinement shellResolution: 2.15→2.28 Å / Rfactor Rfree error: 0.022 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.349 263 5.3 %
Rwork0.325 4696 -
obs--76.5 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2water_rep.paramwater.top
X-RAY DIFFRACTION3ion.paramion.top

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