AARS	Aminoacyl-tRNA synthetase
AtCRY2	Cryptochrome 2 derived from Arabidopsis thaliana
BACCS	Blue light-activated Ca2+ channel switch
BCR	B cell receptor
BG	Benzylguanine
Ca2+	Calcium
CAD	CRAC activation domain
CAR	Chimeric antigen receptor
CC	coiled-coil
CIB1	Cryptochrome-interacting basic helix-loop-helix 1 region
CIP	Chemical inducer
CRAC	Ca2+ release-activated Ca2+
CREB	cAMP response element-binding protein
CRISPR-Cas9	Clustered regularly interspaced short palindromic repeats–associated-9 nuclease
CRS	Cytokine release syndrome
CRY2	Cryptochrome 2
CTL	Cytotoxic T cells
CyP	Prolyl isomerase
DC	Dendritic cell
DAG	Diacylglycerol
DREADD	Designer receptor exclusively activated by designer drugs
EAE	Experimental autoimmune encephalomyelitis
EF-SAM	EF-sterile alpha motif
ER	Endoplasmic reticulum
ER–PM	Endoplasmic reticulum–plasma membrane
FcεRII	Fc-receptor for IgE
FcγR	Fc-receptor for IgG
FMN	Flavin mononucleotide
FKBP	FK506 binding protein
FRB	Ser/Thr phosphatase
GCE	Genetic code expansion
GNb	Nanobody against GFP
GoF	Gain-of-function
GPCR	G protein-coupled receptor
GvHD	Graft-versus-host disease
IBD	Inflammatory bowel disease
IFNγ	Interferon-γ
IL	Interleukin
iLID	Light-induced dimer
INNP5E	Inositol polyphosphate-5-phosphatase E
IP3	Inositol-1,4,5-trisphosphate
LiCAR	Light-inducible CAR
LOCa	Light-gated Ca2+ channel
LoF	Loss-of-function
LOV2	Light-oxygen-voltage-sensing 2
NFAT	Nuclear factor of activated T cells
NF-κB	Nuclear factor kappa-light-chain-enhancer of activated B cells
NIR	Near-infrared
NK	Natural killer
OASF	Orai-activating small fragment
PCB	Phytocyanobilin
PACE	Protease-activated Orai activator
PAS	Period-ARNT-single-minded
PI	Phosphatidylinositol
PIF	Phytochrome-interacting factor
PI(4,5)P2	Phosphatidylinositol-4,5-bisphosphate
PI4P	Phosphatidylinositol 4-phosphate
PHR	N-terminal photolyase homology region
PJ	Pseudojanin
PLCγ	Phospholipase Cγ
POI	Protein of interest
PM	Plasma membrane
PPV	Plum pox virus protease
RNAi	RNA interference
Sac1	Phosphatidylinositol-3-phosphatase
SCID	Severe combined immunodeficiency
STIM	Stromal interaction molecule
SOAR	STIM1-Orai activating region
SOCE	Store-operated Ca2+ entry
SbMVp	Sunflower mild mosaic virus protease
TCR	T cell receptor
TEV	Tobacco etch virus
Th	T helper
TM	Transmembrane
TME	Tumor microenvironment
UAA	Unnatural amino acid
UCPN	Upconversion nanoparticles
UV8	UV resistance locus 8