TIGR	Tandem Interspersed Guide RNA in TIGR-TAS system
Tas	TIGR-associated (proteins) in TIGR-Tas system
PAM	Protospacer Adjacent Motif (3′ NGG in Cas9 and 5′ TTT in Cas12)
CRISPR	Clustered regularly interspaced palindromic repeats
Cas	CRISPER associated (proteins)
tracrRNA	trans-activating CRISPR RNA
crRNA	CRISPR RNA
crRNA array	An array of multiple crRNAs that can target multiple sequences
sgRNA	Single-guide RNA; Engineered tracerRNA::crRNA fusion RNA; designed to target site preceding PAM in CRISPR-Cas system
tigRNA	Dual spacer guide RNA in TIGR-Tas system; A and B spacers target opposite DNA strands on the target; no PAM is required
tigRNA array	An array of multiple tigRNAs that can target multiple sequences
cOA	cyclic oligoadenylates; cofactors in Cas10 system
snoRNA	Short nucleolar RNA
ssDNA	Single-stranded DNA
ssRNA	Single-stranded RNA
Nop	Nucleolar protein
nCas9	Nickase Cas9
dCas9	Catalytically dead Cas9
RuvC	Resistant to Ultraviolet C nuclease domain
ADAR	Adenine deaminase
AAV	Adeno-associated virus
LNP	Lipid nanoparticle
CASCADE	CRISPR associated complex for antiviral defense
SF2	Superfamily 2 helicase
TAD	Topologically associated domain in chromatin
CARF	CRISPR-associated Rossman fold
DETECTR	DNA endogenous-targeted CRISPR trans reporter
SHERLOCK	Specific high-sensitivity reporter unlocking