技术比较总结
类别BioIDAPEXHRP
酶活动Biotin ligase(生物素连接酶)Peroxidase(过氧化物酶)Peroxidase(过氧化物酶)
标记目标Lys(赖氨酸)Electron-rich amino acids (Tyr, Trp, Cys, and His)
(富含电子的氨基酸:酪氨酸、色氨酸、半胱氨酸和组氨酸)
Electron-rich amino acids (Tyr, Trp, Cys, and His)
大小BioID, AirID, TurboID: 35kDa
BioID2: 24kDa
miniTurboID: 28kDa
BASU: 29kDa
APEX, APED2: 27kDa44kDa
标记时间BioID, BioID2: 15-24h
AirID: 1-24h
TurboID, miniTurboID: 10min
1min5-10min
与底物的孵育时间BioID, BioID2: 15-24h
AirID: 3-24h
TurboID, miniTurboID: 10min
30-60min5-10min
H2O2激活
用于蛋白质标记的底物Biotin(生物素)Biotin-phenol (Biotin-tyramide)
Biotin-4-aminophenol
Biotin-naphthylamine
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产生的自由基的半衰期数分钟小于1毫秒小于1毫秒
活性区域细胞内细胞内细胞外,分泌途径(细胞质溶胶中无活性)
备注可作为EM(电子显微镜)标签可作为EM(电子显微镜)标签;
有HRP偶联抗体可用"
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标签: 邻近标记