High resolution mapping of the binding site on human IgG1 for FcγRI, FcγRII, FcγRIII, and FcRn and design of IgG1 variants with improved binding to the FcγR

RL Shields, AK Namenuk, K Hong, YG Meng… - Journal of Biological …, 2001 - ASBMB
Immunoglobulin G (IgG) Fc receptors play a critical role in linking IgG antibody-mediated
immune responses with cellular effector functions. A high resolution map of the binding site …

Engineering therapeutic antibodies for improved function

LG Presta, RL Shields, AK Namenuk… - Biochemical Society …, 2002 - portlandpress.com
The binding sites on human IgG1 for human Fcγ receptor (FcγR) I, FcγRIIa, FcγRIIb, FcγRIIIa
and neonatal FcR have been mapped. A common set of IgG1 residues is involved in binding …

Differential binding to human FcγRIIa and FcγRIIb receptors by human IgG wildtype and mutant antibodies

KL Armour, JGJ van de Winkel, LM Williamson… - Molecular …, 2003 - Elsevier
We are investigating the interactions of recombinant human IgG antibodies with Fc receptors
to enable selection of a constant region giving minimal depletion of antigen-bearing cells …

An engineered Fc variant of an IgG eliminates all immune effector functions via structural perturbations

O Vafa, GL Gilliland, RJ Brezski, B Strake, T Wilkinson… - Methods, 2014 - Elsevier
Abstract The Fc variant of IgG2, designated as IgG2σ, was engineered with
V234A/G237A/P238S/H268A/V309L/A330S/P331S substitutions to eliminate affinity for Fcγ …

The influence of the hinge region length in binding of human IgG to human Fcγ receptors

S Redpath, TE Michaelsen, I Sandlie, MR Clark - Human immunology, 1998 - Elsevier
Interactions between human IgG with human FcγRI and FcγRIIa (R131) were studied to
investigate the role of the hinge region of IgG3 and IgG1 in the binding of the antibodies to …

Identification of the Fc gamma receptor class I binding site in human IgG through the use of recombinant IgG1/IgG2 hybrid and point-mutated antibodies.

MS Chappel, DE Isenman, M Everett… - Proceedings of the …, 1991 - National Acad Sciences
To characterize the region on human IgG1 responsible for its high-affinity interaction with the
human Fc gamma receptor class I (Fc gamma RI), we have analyzed the binding properties …

Role of oligosaccharide residues of IgG1-Fc in FcγRIIb binding

Y Mimura, P Sondermann, R Ghirlando, J Lund… - Journal of Biological …, 2001 - ASBMB
Engagement of Fcγ receptors (FcγRs) with the Fc region of IgG elicits immune responses by
leukocytes. The recent crystal structure of FcγRIII in complex with IgG-Fc has provided …

Recognition sites on human IgG for Fcγ receptors: the role of glycosylation

R Jefferis, J Lund, M Goodall - Immunology letters, 1995 - Elsevier
Human IgG subclass proteins exhibit more than 95% primary amino acid sequence
homology in their Fc regions, but each has a unique profile for recognition by the 3 human …

Crystal structure of Fcγ receptor I and its implication in high affinity γ-immunoglobulin binding

J Lu, JL Ellsworth, N Hamacher, SW Oak… - Journal of Biological …, 2011 - ASBMB
Fcγ receptors (FcγRs) play critical roles in humoral and cellular immune responses through
interactions with the Fc region of immunoglobulin G (IgG). Among them, FcγRI is the only …

Structural analysis of Fc/FcγR complexes: a blueprint for antibody design

JMM Caaveiro, M Kiyoshi, K Tsumoto - Immunological reviews, 2015 - Wiley Online Library
The number of studies and the quality of the structural data of Fcγ receptors (FcγRs) has
rapidly increased in the last few years. Upon critical examination of the literature, we have …