BTLA	B-and T-lymphocyte attenuator
CHCA	α-cyano-4-hydroxycinnamic acid
CD160	cluster of differentiation 160
CRD	cysteine-rich domain
CSI	chemical shift index
CTLA-4	cytotoxic T-lymphocyte antigen-4
DAPI	4′,6-diamidino-2-phenylindole dihydrochloride
DSS	sodium 2,2-dimethyl-2-silapentane-5-sulfonate
DTT	dithiothreitol
ELISA	enzyme-linked immunosorbent assay
Fmoc/tBu	9-fluorenylmethoxycarbonyl/tert-butyl
HSQC	heteronuclear single quantum coherence
HVEM	herpes virus entry mediator
IgSF	immunoglobulin-like superfamily
ITIM	immunoreceptor tyrosine-based inhibitory motif
LC ESI–IT–TOF MS	liquid chromatography coupled with electrospray ionization, ion trap, and time-of-flight mass spectroscopy
LIGHT	homologous to lymphotoxins, exhibits inducible expression, and competes with HSV glycoprotein D for herpes virus entry mediator, a receptor expressed by T lymphocytes
LTα	lymphotoxin α
mAb	monoclonal antibody
MS	mass spectroscopy
MALDI-TOF	matrix-assisted laser desorption ionization, time-of-flight
MREMD	multiplexed-replica exchange molecular dynamics
MD	molecular dynamics
NOE	nuclear Overhauser effect
NOESY	nuclear Overhauser effect spectroscopy
NMR	nuclear magnetic resonance
PBS	phosphate-buffered saline
PD-1	programmed cell death 1
PDB	protein data bank
PD-L1	programmed cell death-ligand 1
PBMC	peripheral blood mononuclear cells
PPIs	protein–protein interactions
RP-HPLC	reverse-phase high-performance liquid chromatography
RMSD	root-mean-square deviation
SPPS	solid-phase peptide synthesis
SHP-1 and 2	Src homology-2-containing protein 1 and 2
SPR	surface plasmon resonance
TFA	trifluoroacetic acid
TNFR	tumor necrosis factor receptor
TOCSY	total correlation spectroscopy
UNRES	UNited RESidue
WHAM	weighted histogram analysis method