Table 1.
Classifications | Effector | System | Recognition type |
Sensitivity | Specificity | Signal amplification |
Quantitative | Multiplex | Time | Readout | Infrastructure requirement |
Reference |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Cas9-based class | Sp-dCas9 | RCH | dsDNA | fM | 1 nt | RCA | Ya | Na | < 4 h | TMB | substantial | [22] |
PC reporter | dsDNA | One copy | NA | PCR | N | N | 10 mins* | Luciferase | Few | [23] | ||
Cas13-based class |
CcaCas13b PsmCas13b LwaCas13a |
SHERLOCKv2f | dsDNA/Virus RNA | aM | 1 nt | RPA | Y | Y | 2 ~ 5 h | Fluorescence | Substantial | [15] |
Cas12-based class | LbCas12a | DETECTR | HPV | aM | 1 nt | RPA | N | N | ~ 1 h | fluorescence | substantial | [24] |
LbCas12a | Cas12aVDet | Mycoplasma | aM | 1 nt | RPA | N | N | ~ 30 min | Naked eye | Few | [25] | |
LbCas12a | DETECTR-COVID19 | SARS-CoV-2 | 95% | 1 nt | RT-LAMP | N | N | ~ 45 min | LFA | Few | [19] | |
Cas14-based class | Cas14a1 | Cas14-DETECTR | ssDNA | NA | 1 nt | PTAa | N | N | NA | fluorescence | substantial | [26] |
aAll features were claimed by the original publications; Y: yes; N: no; PTA: phosphorothioate amplification; NA: uncertainty;
* shown 10 mins after PCR