Antibody binding geometry and affinity control inhibitory FcγRIIB receptor signaling

Hayden Fisher Submitted to SASBDB: 2024 Apr 15
Published in SASBDB:

SASDU77 – Human IgG1 F(ab') 5C05

Human IgG1 F(ab') 5C05 experimental SAS data
Human IgG1 F(ab') 5C05 Kratky plot
Sample: Human IgG1 F(ab') 5C05 monomer, 46 kDa Homo sapiens protein
Buffer: 50 mM HEPES, 150 mM KCl, pH: 7.5
Experiment: SAXS data collected at BM29, ESRF on 2016 May 9
RgGuinier 2.5 nm
Dmax 7.7 nm
VolumePorod 59 nm3

SASDU87 – Deglycosylated Fc gamma receptor IIb (CD32b) extracellular domain in complex with human IgG1 5C05 F(ab')

Low affinity immunoglobulin gamma Fc region receptor II-bHuman IgG1 F(ab') 5C05 experimental SAS data
MOLECULAR DYNAMICS FRAME model
Sample: Low affinity immunoglobulin gamma Fc region receptor II-b monomer, 20 kDa Homo sapiens protein
Human IgG1 F(ab') 5C05 monomer, 46 kDa Homo sapiens protein
Buffer: 50 mM HEPES, 150 mM KCl, pH: 7.5
Experiment: SAXS data collected at BM29, ESRF on 2016 May 18
RgGuinier 3.5 nm
Dmax 14.0 nm
VolumePorod 95 nm3

SASDU97 – Human IgG1 F(ab') 6C11

Human IgG1 F(ab') 6C11 experimental SAS data
Human IgG1 F(ab') 6C11 Kratky plot
Sample: Human IgG1 F(ab') 6C11 monomer, 24 kDa Homo sapiens protein
Buffer: 50 mM HEPES, 150 mM KCl, pH: 7.5
Experiment: SAXS data collected at BM29, ESRF on 2016 May 9
RgGuinier 2.5 nm
Dmax 7.6 nm
VolumePorod 56 nm3

SASDUA7 – Fc gamma receptor IIb (CD32b) extracellular domain in complex with human IgG1 6C11 F(ab')

Low affinity immunoglobulin gamma Fc region receptor II-bHuman IgG1 F(ab') 6C11 experimental SAS data
Low affinity immunoglobulin gamma Fc region receptor II-b Human IgG1 F(ab') 6C11 Kratky plot
Sample: Low affinity immunoglobulin gamma Fc region receptor II-b monomer, 20 kDa Homo sapiens protein
Human IgG1 F(ab') 6C11 monomer, 24 kDa Homo sapiens protein
Buffer: 50 mM HEPES, 150 mM KCl, pH: 7.5
Experiment: SAXS data collected at BM29, ESRF on 2016 May 9
RgGuinier 3.4 nm
Dmax 12.0 nm
VolumePorod 110 nm3

SASDUB7 – Human IgG1 F(ab') 6G11

Human IgG1 F(ab') 6G11 experimental SAS data
Human IgG1 F(ab') 6G11 Kratky plot
Sample: Human IgG1 F(ab') 6G11 monomer, 25 kDa Homo sapiens protein
Buffer: 50 mM HEPES, 150 mM KCl, pH: 7.5
Experiment: SAXS data collected at BM29, ESRF on 2014 Dec 5
RgGuinier 2.6 nm
Dmax 8.5 nm
VolumePorod 60 nm3

SASDUC7 – Deglycosylated Fc gamma receptor IIb (CD32b) extracellular domain in complex with human IgG1 6G11 F(ab')

Low affinity immunoglobulin gamma Fc region receptor II-bHuman IgG1 F(ab') 6G11 experimental SAS data
MOLECULAR DYNAMICS FRAME model
Sample: Low affinity immunoglobulin gamma Fc region receptor II-b monomer, 20 kDa Homo sapiens protein
Human IgG1 F(ab') 6G11 monomer, 25 kDa Homo sapiens protein
Buffer: 50 mM HEPES, 150 mM KCl, pH: 7.5
Experiment: SAXS data collected at BM29, ESRF on 2017 Apr 9
RgGuinier 3.5 nm
Dmax 13.5 nm
VolumePorod 97 nm3

SASDUD7 – Human IgG1 F(ab') 7C07

Human IgG1 F(ab') 7C07 experimental SAS data
Human IgG1 F(ab') 7C07 Kratky plot
Sample: Human IgG1 F(ab') 7C07 monomer, 25 kDa Homo sapiens protein
Buffer: 50 mM HEPES, 150 mM KCl, pH: 7.5
Experiment: SAXS data collected at BM29, ESRF on 2014 Dec 5
RgGuinier 2.6 nm
Dmax 8.2 nm
VolumePorod 59 nm3

SASDUE7 – Fc gamma receptor IIb (CD32b) extracellular domain in complex with human IgG1 7C07 F(ab')

Low affinity immunoglobulin gamma Fc region receptor II-bHuman IgG1 F(ab') 7C07 experimental SAS data
Low affinity immunoglobulin gamma Fc region receptor II-b Human IgG1 F(ab') 7C07 Kratky plot
Sample: Low affinity immunoglobulin gamma Fc region receptor II-b monomer, 20 kDa Homo sapiens protein
Human IgG1 F(ab') 7C07 monomer, 25 kDa Homo sapiens protein
Buffer: 50 mM HEPES, 150 mM KCl, pH: 7.5
Experiment: SAXS data collected at BM29, ESRF on 2014 Dec 5
RgGuinier 3.6 nm
Dmax 13.5 nm
VolumePorod 110 nm3

SASDUF7 – Deglycosylated Fc gamma receptor IIb (CD32b) extracellular domain in complex with human IgG1 6G08 F(ab')

Low affinity immunoglobulin gamma Fc region receptor II-bHuman IgG1 F(ab') 6G08 experimental SAS data
MOLECULAR DYNAMICS FRAME model
Sample: Low affinity immunoglobulin gamma Fc region receptor II-b monomer, 20 kDa Homo sapiens protein
Human IgG1 F(ab') 6G08 monomer, 24 kDa Homo sapiens protein
Buffer: 50 mM HEPES, 150 mM KCl, pH: 7.5
Experiment: SAXS data collected at BM29, ESRF on 2016 Dec 14
RgGuinier 3.3 nm
Dmax 12.0 nm
VolumePorod 96 nm3