| BIL | Bacterial Intein-Like |
| HINT | Hedgehog/INTein |
| Hh-C | the C-terminal domain of the Hedgehog protein or hog protein |
| IMAC | immobilized metal affinity chromatography |
| IPTG | isopropyl-β-D-thiogalactoside |
| MchDnaB1 intein | DnaB1 intein from Mycobacterium chimaera |
| PDB | Protein Data Bank |
| r.m.s.d. | root-mean-square deviation |
| HSQC | heteronuclear single quantum correlation |
| PEG | polyethylene glycol |
| PMSF | phenylmethanesulfonyl fluoride |
| DTT | dithiothreitol. |