...a look at some popular self-labeling tools: Tetracysteine: The first reported chemical labeling tag, from...Commercial ligands available Ease of use Tetracysteine (Cys4) 15 Biarsenical dyes (FlAsH, ReAsH...labeling specificity than short peptide tags like tetracysteine (Jing & Cornish, 2011). HaloTag and SNAP-tag...functional. In some cases, a small peptide tag like tetracysteine might be the only option that doesn’t disrupt...options for CLIP-tag and very few TMP-tag or tetracysteine labeling dyes.  If reaction speed is a priority...

... nonfluorescent until they bind a 6-residue tetracysteine tag (sequence: CCPGCC) that can be inserted ...interest, resulting in a C-terminal fusion of a tetracysteine tag. In addition, since these tags are so small...et al. "Hairpin structure of a biarsenical− tetracysteine motif determined by NMR spectroscopy." Journal...

...FlAsH, ReAsH) and a short genetically encoded tetracysteine (Cys4) peptide tag could be used to label proteins...