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- PDB-5gsq: Crystal structure of IgG Fc with a homogeneous glycoform and Anti... -

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Entry
Database: PDB / ID: 5gsq
TitleCrystal structure of IgG Fc with a homogeneous glycoform and Antibody-Dependent Cellular Cytotoxicity
ComponentsIg gamma-1 chain C region
KeywordsIMMUNE SYSTEM / Antibody Fc / homogeneous N-glycan / enhanced ADCC / di-sialylation
Function / homology
Function and homology information


Fc-gamma receptor I complex binding / complement-dependent cytotoxicity / IgG immunoglobulin complex / antibody-dependent cellular cytotoxicity / immunoglobulin receptor binding / immunoglobulin complex, circulating / Classical antibody-mediated complement activation / Initial triggering of complement / FCGR activation / complement activation, classical pathway ...Fc-gamma receptor I complex binding / complement-dependent cytotoxicity / IgG immunoglobulin complex / antibody-dependent cellular cytotoxicity / immunoglobulin receptor binding / immunoglobulin complex, circulating / Classical antibody-mediated complement activation / Initial triggering of complement / FCGR activation / complement activation, classical pathway / Role of phospholipids in phagocytosis / antigen binding / FCGR3A-mediated IL10 synthesis / Regulation of Complement cascade / B cell receptor signaling pathway / FCGR3A-mediated phagocytosis / 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 / 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 / Immunoglobulin-like fold / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Immunoglobulin heavy constant gamma 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.85 Å
AuthorsChen, C.-L. / Hsu, J.-C. / Lin, C.-W. / Wu, C.-Y. / Wong, C.-H. / Ma, C.
Funding support Taiwan, 1items
OrganizationGrant numberCountry
Academia Sinica Taiwan
CitationJournal: ACS Chem. Biol. / Year: 2017
Title: Crystal Structure of a Homogeneous IgG-Fc Glycoform with the N-Glycan Designed to Maximize the Antibody Dependent Cellular Cytotoxicity
Authors: Chen, C.-L. / Hsu, J.-C. / Lin, C.-W. / Wang, C.-H. / Tsai, M.-H. / Wu, C.-Y. / Wong, C.-H. / Ma, C.
History
DepositionAug 17, 2016Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 28, 2017Provider: repository / Type: Initial release
Revision 1.1Oct 4, 2017Group: Data collection / Category: diffrn_detector / Item: _diffrn_detector.detector
Revision 2.0Mar 18, 2020Group: Atomic model / Data collection / Derived calculations
Category: atom_site / chem_comp ...atom_site / chem_comp / struct_conn / struct_site
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.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.type / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr2_label_atom_id / _struct_site.details
Revision 3.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / 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_validate_close_contact / 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 / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_validate_close_contact.auth_asym_id_1 / _pdbx_validate_close_contact.auth_asym_id_2 / _pdbx_validate_close_contact.auth_seq_id_1 / _pdbx_validate_close_contact.auth_seq_id_2 / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 3.1Nov 8, 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
Revision 4.0Sep 17, 2025Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / pdbx_distant_solvent_atoms ...atom_site / pdbx_distant_solvent_atoms / pdbx_entry_details / pdbx_modification_feature / pdbx_nonpoly_scheme / pdbx_validate_close_contact / pdbx_validate_symm_contact / struct_conn
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_seq_id / _atom_site.label_asym_id / _pdbx_distant_solvent_atoms.auth_asym_id / _pdbx_distant_solvent_atoms.auth_seq_id / _pdbx_distant_solvent_atoms.neighbor_ligand_distance / _pdbx_distant_solvent_atoms.neighbor_macromolecule_distance / _pdbx_nonpoly_scheme.asym_id / _pdbx_nonpoly_scheme.auth_seq_num / _pdbx_nonpoly_scheme.ndb_seq_num / _pdbx_nonpoly_scheme.pdb_seq_num / _pdbx_nonpoly_scheme.pdb_strand_id / _pdbx_validate_close_contact.auth_asym_id_1 / _pdbx_validate_close_contact.auth_asym_id_2 / _pdbx_validate_close_contact.auth_atom_id_1 / _pdbx_validate_close_contact.auth_atom_id_2 / _pdbx_validate_close_contact.auth_comp_id_1 / _pdbx_validate_close_contact.auth_comp_id_2 / _pdbx_validate_close_contact.auth_seq_id_1 / _pdbx_validate_close_contact.auth_seq_id_2 / _pdbx_validate_close_contact.dist

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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
C: Ig gamma-1 chain C region
D: Ig gamma-1 chain C region
hetero molecules


Theoretical massNumber of molelcules
Total (without water)106,4188
Polymers101,3474
Non-polymers5,0724
Water14,916828
1
A: Ig gamma-1 chain C region
B: Ig gamma-1 chain C region
hetero molecules


Theoretical massNumber of molelcules
Total (without water)53,2264
Polymers50,6732
Non-polymers2,5522
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
2
C: Ig gamma-1 chain C region
D: Ig gamma-1 chain C region
hetero molecules


Theoretical massNumber of molelcules
Total (without water)53,1934
Polymers50,6732
Non-polymers2,5192
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)50.183, 158.406, 66.905
Angle α, β, γ (deg.)90.000, 109.040, 90.000
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein
Ig gamma-1 chain C region


Mass: 25336.688 Da / Num. of mol.: 4 / Fragment: UNP residues 106-330
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: IGHG1 / Cell line (production host): Ovary cell / Production host: Cricetulus griseus (Chinese hamster) / References: UniProt: P01857
#2: 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)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 1276.157 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGalpb1-4DGlcpNAcb1-2DManpa1-6[DManpa1-3]DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/4,7,6/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1122h-1a_1-5][a2112h-1b_1-5]/1-1-2-3-3-1-4/a4-b1_b4-c1_c3-d1_c6-e1_e2-f1_f4-g1WURCSPDB2Glycan 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]{[(2+1)][b-D-GlcpNAc]{[(4+1)][b-D-Galp]{}}}}}}}LINUCSPDB-CARE
#3: Polysaccharide N-acetyl-alpha-neuraminic acid-(2-6)-beta-D-galactopyranose-(1-4)-2-acetamido-2-deoxy-beta-D- ...N-acetyl-alpha-neuraminic acid-(2-6)-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)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 1567.411 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DNeup5Aca2-6DGalpb1-4DGlcpNAcb1-2DManpa1-6[DManpa1-3]DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/5,8,7/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1122h-1a_1-5][a2112h-1b_1-5][Aad21122h-2a_2-6_5*NCC/3=O]/1-1-2-3-3-1-4-5/a4-b1_b4-c1_c3-d1_c6-e1_e2-f1_f4-g1_g6-h2WURCSPDB2Glycan 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]{[(2+1)][b-D-GlcpNAc]{[(4+1)][b-D-Galp]{[(6+2)][a-D-Neup5Ac]{}}}}}}}}LINUCSPDB-CARE
#4: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-3)-alpha-D-mannopyranose-(1-6)-beta-D-mannopyranose-(1- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(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: 951.875 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DGlcpNAcb1-3DManpa1-6DManpb1-4DGlcpNAcb1-4DGlcpNAcb1-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]/1-1-2-3-1/a4-b1_b4-c1_c6-d1_d3-e1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-Manp]{[(6+1)][a-D-Manp]{[(3+1)][b-D-GlcpNAc]{}}}}}}LINUCSPDB-CARE
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 828 / Source method: isolated from a natural source / Formula: H2O
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: 2.55 Å3/Da / Density % sol: 51.76 % / Description: thick plate
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 4.5
Details: 0.1M sodium acetate trihydrate, pH4.5, 30% (w/v) PEG 3350

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL41XU / Wavelength: 1 Å
DetectorType: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Apr 15, 2015
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 1.85→50 Å / Num. obs: 78598 / % possible obs: 93.8 % / Redundancy: 2.8 % / Biso Wilson estimate: 16.9 Å2 / Rmerge(I) obs: 0.037 / Rsym value: 0.03 / Net I/av σ(I): 30.416 / Net I/σ(I): 15.2
Reflection shell
Resolution (Å)Redundancy (%)Rmerge(I) obsCC1/2Diffraction-ID% possible all
1.85-1.922.60.7870.896191.4
1.92-1.992.80.5030.879193.6
1.99-2.082.90.210.94195.5
2.08-2.192.80.1320.971194.5
2.19-2.332.60.1120.973190.9
2.33-2.5130.0650.99196.4
2.51-2.7630.0450.994196.8
2.76-3.162.90.0310.996195.3
3.161-3.992.80.0250.997194.7
3.993-502.60.0210.997189

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Processing

Software
NameVersionClassification
SCALEPACKdata scaling
PHENIX1.10.1_2155refinement
PDB_EXTRACT3.2data extraction
Cootmodel building
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 3DO3

3do3


Resolution: 1.85→49.421 Å / SU ML: 0.24 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 28.87
RfactorNum. reflection% reflection
Rfree0.2668 3639 4.99 %
Rwork0.227 --
obs0.229 72868 86.8 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Displacement parametersBiso max: 106.16 Å2 / Biso mean: 28.2112 Å2 / Biso min: 4.01 Å2
Refinement stepCycle: final / Resolution: 1.85→49.421 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6889 0 0 828 7717
Biso mean---32.31 -
Num. residues----845
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0117104
X-RAY DIFFRACTIONf_angle_d1.3089720
X-RAY DIFFRACTIONf_chiral_restr0.0691149
X-RAY DIFFRACTIONf_plane_restr0.0071193
X-RAY DIFFRACTIONf_dihedral_angle_d15.4454109
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 26

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all% reflection obs (%)
1.8496-1.87390.3809420.31731015105733
1.8739-1.89960.4052700.32381496156649
1.8996-1.92670.4631550.37371356141143
1.9267-1.95550.33841430.31212252239575
1.9555-1.9860.29681500.28862649279987
1.986-2.01860.31261520.27572837298992
2.0186-2.05340.31431640.27142840300494
2.0534-2.09070.34921530.27232934308794
2.0907-2.1310.31251580.26272854301295
2.131-2.17450.29591500.25642873302394
2.1745-2.22170.30161580.25382802296092
2.2217-2.27340.30241370.2682580271784
2.2734-2.33030.29711470.25612975312297
2.3303-2.39330.29141560.2382999315597
2.3933-2.46370.3211420.2462905304796
2.4637-2.54320.28521650.24942952311797
2.5432-2.63410.30271560.25223011316798
2.6341-2.73960.27811490.23672941309097
2.7396-2.86420.28871500.22772854300493
2.8642-3.01520.28751640.23352956312096
3.0152-3.20410.2581430.21672990313397
3.2041-3.45140.21591620.19712983314597
3.4514-3.79870.2281340.19042887302194
3.7987-4.3480.20251450.18352718286388
4.348-5.4770.19161540.16922844299892
5.477-49.43890.25531400.20512726286687

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