T-Cell receptor variable β domains rigidify during affinity maturation

ML Fernández-Quintero, CA Seidler, KR Liedl - Scientific Reports, 2020 - nature.com
We investigated T-cell receptor variable β chains binding to the superantigen staphylococcal
enterotoxin C3 (SEC 3) with structure information in different stages of affinity maturation …

Local and global rigidification upon antibody affinity maturation

ML Fernández-Quintero, JR Loeffler… - Frontiers in molecular …, 2020 - frontiersin.org
During the affinity maturation process the immune system produces antibodies with higher
specificity and activity through various rounds of somatic hypermutations in response to an …

Characterizing the diversity of the CDR-H3 loop conformational ensembles in relationship to antibody binding properties

ML Fernández-Quintero, JR Loeffler, J Kraml… - Frontiers in …, 2019 - frontiersin.org
We present an approach to assess antibody CDR-H3 loops according to their dynamic
properties using molecular dynamics simulations. We selected six antibodies in three pairs …

Integrating experiment and theory to understand TCR-pMHC dynamics

AM Buckle, NA Borg - Frontiers in immunology, 2018 - frontiersin.org
The conformational dynamism of proteins is well established. Rather than having a single
structure, proteins are more accurately described as a conformational ensemble that exists …

Combining Well‐Tempered Metadynamics Simulation and SPR Assays to Characterize the Binding Mechanism of the Universal T‐Lymphocyte Tetanus Toxin Epitope …

AAML Brandt, RN Rodrigues-da-Silva… - BioMed Research …, 2021 - Wiley Online Library
Peptide TT830‐843 from the tetanus toxin is a universal T‐cell epitope. It helps in
vaccination and induces T‐cell activation. However, the fine molecular interaction between …

Large scale characterization of the LC13 TCR and HLA-B8 structural landscape in reaction to 172 altered peptide ligands: a molecular dynamics simulation study

B Knapp, J Dunbar, CM Deane - PLoS computational biology, 2014 - journals.plos.org
The interplay between T cell receptors (TCRs) and peptides bound by major
histocompatibility complexes (MHCs) is one of the most important interactions in the …

Dissecting cooperative and additive binding energetics in the affinity maturation pathway of a protein-protein interface

J Yang, CP Swaminathan, Y Huang, R Guan… - Journal of Biological …, 2003 - ASBMB
When two proteins associate they form a molecular interface that is a structural and
energetic mosaic. Within such interfaces, individual amino acid residues contribute distinct …

Disparate degrees of hypervariable loop flexibility control T-cell receptor cross-reactivity, specificity, and binding mechanism

DR Scott, OY Borbulevych, KH Piepenbrink… - Journal of molecular …, 2011 - Elsevier
αβ T-cell receptors (TCRs) recognize multiple antigenic peptides bound and presented by
major histocompatibility complex molecules. TCR cross-reactivity has been attributed in part …

Molecular dynamics simulation of a high-affinity antibody-protein complex: the binding site is a mosaic of locally flexible and preorganized rigid regions

N Sinha, SJ Smith-Gill - Cell biochemistry and biophysics, 2005 - Springer
One nanosecond molecular dynamic (MD) simulation of anti-hen egg white lysozyme (HEL)
antibody HyHEL63 (HH63) complexed with HEL reveals rigid and flexible regions of the …

The modular organization of domain structures: insights into protein–protein binding

A Del Sol, P Carbonell - PLoS computational biology, 2007 - journals.plos.org
Domains are the building blocks of proteins and play a crucial role in protein–protein
interactions. Here, we propose a new approach for the analysis and prediction of domain …