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Title: Structural insight into T cell coinhibition by PD-1H (VISTA)

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America

Programmed death-1 homolog (PD-1H), a CD28/B7 family molecule, coinhibits T cell activation and is an attractive immunotherapeutic target for cancer and inflammatory diseases. The molecular basis of its function, however, is unknown. Bioinformatic analyses indicated that PD-1H has a very long Ig variable region (IgV)-like domain and extraordinarily high histidine content, suggesting that unique structural features may contribute to coinhibitory mechanisms. In this paper we present the 1.9-Å crystal structure of the human PD-1H extracellular domain. It reveals an elongated CC′ loop and a striking concentration of histidine residues, located in the complementarity-determining region-like proximal half of the molecule. We show that surface-exposed histidine clusters are essential for robust inhibition of T cell activation. PD-1H exhibits a noncanonical IgV-like topology including an extra “H” β-strand and “clamping” disulfide, absent in known IgV-like structures, that likely restricts its orientation on the cell surface differently from other IgV-like domains. These results provide important insight into a molecular basis of T cell coinhibition by PD-1H.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC); Boehringer Ingelheim; National Institutes of Health (NIH); United Technologies Corporation Endowed Chair; National Institute of General Medical Sciences (NIGMS)
Grant/Contract Number:
AC02-06CH11357; S10OD021527
OSTI ID:
1582072
Alternate ID(s):
OSTI ID: 1599419
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Vol. 117 Journal Issue: 3; ISSN 0027-8424
Publisher:
National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 27 works
Citation information provided by
Web of Science

References (48)

Small-Molecule Immune Checkpoint Inhibitors Targeting PD-1/PD-L1 and Other Emerging Checkpoint Pathways journal August 2018
PD-1 Upregulated on Regulatory T Cells during Chronic Virus Infection Enhances the Suppression of CD8 + T Cell Immune Response via the Interaction with PD-L1 Expressed on CD8 + T Cells journal May 2015
Refinement of Macromolecular Structures by the Maximum-Likelihood Method journal May 1997
Crystal structure of the B7-1/CTLA-4 complex that inhibits human immune responses journal March 2001
Dali server update journal April 2016
Structural basis for co-stimulation by the human CTLA-4/B7-2 complex journal March 2001
VISTA, a novel mouse Ig superfamily ligand that negatively regulates T cell responses journal March 2011
Cutting Edge: A Monoclonal Antibody Specific for the Programmed Death-1 Homolog Prevents Graft-versus-Host Disease in Mouse Models journal July 2011
Likelihood-enhanced fast rotation functions journal February 2004
The Crystal Structure of the Extracellular Domain of the Inhibitor Receptor Expressed on Myeloid Cells IREM-1 journal March 2007
Structural Basis of the CD8αβ/MHC Class I Interaction: Focused Recognition Orients CD8β to a T Cell Proximal Position journal July 2009
Cell Surface Signaling Molecules in the Control of Immune Responses: A Tide Model journal April 2011
TIM-1 and TIM-4 Glycoproteins Bind Phosphatidylserine and Mediate Uptake of Apoptotic Cells journal December 2007
Disruption of the immune-checkpoint VISTA gene imparts a proinflammatory phenotype with predisposition to the development of autoimmunity journal September 2014
Diversity in the CDR3 Region of VH Is Sufficient for Most Antibody Specificities journal July 2000
Neuron-specific SALM5 limits inflammation in the CNS via its interaction with HVEM journal April 2016
Control of signaling-mediated clearance of apoptotic cells by the tumor suppressor p53 journal July 2015
Acidic extracellular microenvironment and cancer journal January 2013
A Paradigm Shift in Cancer Immunotherapy: From Enhancement to Normalization journal October 2018
VISTA Regulates the Development of Protective Antitumor Immunity journal March 2014
Structures of T Cell Immunoglobulin Mucin Protein 4 Show a Metal-Ion-Dependent Ligand Binding Site where Phosphatidylserine Binds journal December 2007
Immune-checkpoint protein VISTA critically regulates the IL-23/IL-17 inflammatory axis journal May 2017
The Buccaneer software for automated model building. 1. Tracing protein chains journal August 2006
The multiple roles of histidine in protein interactions journal March 2013
The Pfam protein families database in 2019 journal October 2018
Initiation of T cell signaling by CD45 segregation at 'close contacts' journal March 2016
UniProt: a worldwide hub of protein knowledge November 2018
Coinhibitory receptor PD-1H preferentially suppresses CD4+ T cell–mediated immunity journal April 2014
Deciphering key features in protein structures with the new ENDscript server journal April 2014
Blocking the VISTA pathway enhances disease progression in (NZB × NZW) F1 female mice journal June 2017
VISTA is an inhibitory immune checkpoint that is increased after ipilimumab therapy in patients with prostate cancer journal March 2017
Features and development of Coot journal March 2010
The crystal structure of myelin oligodendrocyte glycoprotein, a key autoantigen in multiple sclerosis journal September 2003
Treatment of Rheumatoid Arthritis by Selective Inhibition of T-Cell Activation with Fusion Protein CTLA4Ig journal November 2003
VISTA Deficiency Accelerates the Development of Fatal Murine Lupus Nephritis journal March 2017
Molecular mechanisms of T cell co-stimulation and co-inhibition journal March 2013
Structural Basis of Inducible Costimulator Ligand Costimulatory Function: Determination of the Cell Surface Oligomeric State and Functional Mapping of the Receptor Binding Site of the Protein journal September 2006
Co-inhibitory molecules of the B7–CD28 family in the control of T-cell immunity journal May 2004
Siglec-15 as an immune suppressor and potential target for normalization cancer immunotherapy journal March 2019
Immune-checkpoint proteins VISTA and PD-1 nonredundantly regulate murine T-cell responses journal May 2015
The tyrosine corner: A feature of most greek key β-barrel proteins journal November 1994
Crystal structure of a soluble CD28-Fab complex journal February 2005
The PD-1/PD-L1 complex resembles the antigen-binding Fv domains of antibodies and T cell receptors journal February 2008
Evolution of the B7 family: co-evolution of B7H6 and NKp30, identification of a new B7 family member, B7H7, and of B7's historical relationship with the MHC journal April 2012
[20] Processing of X-ray diffraction data collected in oscillation mode book January 1997
A crucial role of the PD-1H coinhibitory receptor in suppressing experimental asthma journal May 2017
Costimulation Blockade with Belatacept in Renal Transplantation journal August 2005
High resolution X-ray and NMR structural study of human T-cell immunoglobulin and mucin domain containing protein-3 journal November 2018

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