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- PDB-7lfn: Structure of Hyperglycosylated Human IgG1 Fc (Fc267_329) -

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Basic information

Entry
Database: PDB / ID: 7lfn
TitleStructure of Hyperglycosylated Human IgG1 Fc (Fc267_329)
ComponentsIgG1 Fc (Fc267_329)
KeywordsSIGNALING PROTEIN / Effector / IgG / Antibody / Fc
Function / homology
Function and homology information


metal ion binding / plasma membrane
Similarity search - Function
: / Immunoglobulin V-Type / Immunoglobulin V-set domain / Immunoglobulin V-set domain / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin subtype / Immunoglobulin / Immunoglobulin C-Type / Immunoglobulin C1-set ...: / Immunoglobulin V-Type / Immunoglobulin V-set domain / Immunoglobulin V-set domain / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin subtype / Immunoglobulin / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
alpha-L-fucopyranose / Uncharacterized protein DKFZp686C11235
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.6 Å
AuthorsFields, J.K. / Sundberg, E.J.
CitationJournal: To Be Published
Title: Silent Antibodies: Generation of Hyperglycosylated FCs to Ablate Effector Functions
Authors: Fields, J.K. / Sundberg, E.J.
History
DepositionJan 17, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 27, 2021Provider: repository / Type: Initial release
Revision 1.1Oct 18, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.2Oct 23, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: IgG1 Fc (Fc267_329)
B: IgG1 Fc (Fc267_329)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)56,5608
Polymers52,4012
Non-polymers4,1596
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area8460 Å2
ΔGint70 kcal/mol
Surface area21420 Å2
MethodPISA
Unit cell
Length a, b, c (Å)49.483, 79.253, 141.321
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121
Space group name HallP2ac2ab
Symmetry operation#1: x,y,z
#2: x+1/2,-y+1/2,-z
#3: -x,y+1/2,-z+1/2
#4: -x+1/2,-y,z+1/2

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Components

#1: Antibody IgG1 Fc (Fc267_329)


Mass: 26200.627 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: DKFZp686C11235 / Production host: Homo sapiens (human) / References: UniProt: Q6MZV7
#2: 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)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 1056.964 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
DescriptorTypeProgram
DManpa1-3[DManpa1-6]DManpb1-4DGlcpNAcb1-4[LFucpa1-6]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/4,6,5/[a2122h-1b_1-5_2*NCC/3=O][a1122h-1b_1-5][a1122h-1a_1-5][a1221m-1a_1-5]/1-1-2-3-3-4/a4-b1_a6-f1_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]{}}}[(6+1)][a-L-Fucp]{}}}LINUCSPDB-CARE
#3: 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
#4: Sugar ChemComp-FUC / alpha-L-fucopyranose / alpha-L-fucose / 6-deoxy-alpha-L-galactopyranose / L-fucose / fucose


Type: L-saccharide, alpha linking / Mass: 164.156 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C6H12O5
IdentifierTypeProgram
LFucpaCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
a-L-fucopyranoseCOMMON NAMEGMML 1.0
a-L-FucpIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
FucSNFG CARBOHYDRATE SYMBOLGMML 1.0
#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


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H15NO6 / Feature type: SUBJECT OF INVESTIGATION
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
Has ligand of interestY
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: 2.64 Å3/Da / Density % sol: 53.48 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop
Details: CRYSTALS GROWN BY MIXING 1 UL OF FC267_329 (10 MG/ML IN 10mM HEPES, 75mM NaCl pH 7.4) WITH 1 UL OF PRECIPITANT SOLUTION CONSISTING OF 0.025M MES pH 7.0, 0.1M KCl, 20.571% w/v PEG3350

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: NSLS-II / Beamline: 17-ID-1 / Wavelength: 1.03319 Å
DetectorType: DECTRIS EIGER X 9M / Detector: PIXEL / Date: Dec 15, 2017
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.03319 Å / Relative weight: 1
ReflectionResolution: 2.6→28.75 Å / Num. obs: 17601 / % possible obs: 99.2 % / Redundancy: 4.4 % / Biso Wilson estimate: 60.39 Å2 / Rmerge(I) obs: 0.044 / Rpim(I) all: 0.042 / Net I/σ(I): 11.8
Reflection shellResolution: 2.6→2.72 Å / Mean I/σ(I) obs: 2.6 / Num. unique obs: 2103 / Rpim(I) all: 0.272

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Processing

Software
NameVersionClassification
PHENIX1.18.2_3874refinement
XDSdata reduction
Aimlessdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 5JII

5jii


Resolution: 2.6→28.75 Å / SU ML: 0.3646 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 28.6263
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
RfactorNum. reflection% reflection
Rfree0.2698 860 4.93 %
Rwork0.2297 16583 -
obs0.2318 17443 98.34 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso mean: 64 Å2
Refinement stepCycle: LAST / Resolution: 2.6→28.75 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3038 0 277 0 3315
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.013393
X-RAY DIFFRACTIONf_angle_d1.05154637
X-RAY DIFFRACTIONf_chiral_restr0.0542596
X-RAY DIFFRACTIONf_plane_restr0.0066559
X-RAY DIFFRACTIONf_dihedral_angle_d16.13851286
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.6-2.760.3191160.29662762X-RAY DIFFRACTION99.48
2.76-2.980.34781360.29642747X-RAY DIFFRACTION99.69
2.98-3.280.37821450.2792749X-RAY DIFFRACTION99.04
3.28-3.750.30471360.27732653X-RAY DIFFRACTION94.67
3.75-4.720.24841500.1982760X-RAY DIFFRACTION98.28
4.72-28.750.21581770.1872912X-RAY DIFFRACTION98.88
Refinement TLS params.Method: refined / Origin x: 22.7222334859 Å / Origin y: 1.79629596844 Å / Origin z: 25.3450981323 Å
111213212223313233
T0.350081661736 Å2-0.0597794081324 Å2-0.0169752798593 Å2-0.216474910828 Å20.000945807432756 Å2--0.319228933018 Å2
L2.23700084273 °2-0.867501235222 °20.386268166013 °2-1.54282872075 °2-0.998182536517 °2--1.0731476212 °2
S0.023362497136 Å °-0.123785981894 Å °-0.136203629547 Å °-0.193132406076 Å °0.0581281693244 Å °-0.0417549473996 Å °0.151326629637 Å °-0.043117233619 Å °-0.0702878160884 Å °
Refinement TLS groupSelection details: all

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