New component/cellulosome | Scaffoldin | Enzymes/(source) | Mode of construction | Substrate | Saccharification rate | References |
---|---|---|---|---|---|---|
Chimeric CBM3-CgIT | C. thermocellum scaffoldin | β-glucosidase (CgIT)/(T. brockii) | Fusion of CBM3 from scaffolding protein Cip A into N-terminal region of CgIT | Rice straw | 70 % | Waeonukul et al. (2013) |
Nanocluster | CdSe–ZnS core–shell quantum dots QDs | Cel A/(C. thermocellum); Cel E/(C. cellulolyticum) | Metal affinity between core–shell QDs and polyhistidine tag | n.d. | n.d. | Tsai et al. (2013) |
Mini-cellulosome | Mini-scaffoldin (mini-Cip A) | Endoglucanase/(B. subtilis); processive endoglucanase/(C. thermocellum); cellobiohydrolase/(C. phytofermentans) | High-affinity interaction between three cohesins | Avicel | n.d. | You et al. (2012b) |
Nanocluster | Polystyrene nanospheres | Cellulase/(T. viride) | EDC and sulfo-NHS coupling chemistry | n.d. | n.d. | Blanchette et al. (2012) |
Hybrid scaffoldin (Scaf 4) | Parental scaffoldin Scaf 4 protein | Cel48F/(–); Cel9G/(–) | Length and composition of inter-module linker connecting C. thermocellum and C. cellulolyticum cohesin modified | Crystalline cellulose | 2-fold increase | Molinier et al. (2011) |
Functional minicellulosome in Corynebacterium glutamicum | Mini CbpA | Chimeric endoglucanase/(C. cellulovorans) | Fusion of endoglucanase E from C. thermocellum with endoglucanase from C. cellulovorans | CMC | 2.8-fold increase | Hyeon et al. (2011) |
Scaffoldin-linked exoglucanase | SP1 scaffoldin protein | Cel6B exoglucanase/(T. fusca) | Fusion of chimeric form of enzyme to a cellulosomal dockerin module | n.d. | n.d. | Morais et al. (2010) |
Rosettasome | Group II chaperonins from the hyperthermoacidophilic archaeon S. shibatae | Cel9B, Cel9k, Cel9R, Cel48S/(C. thermocellum) | Fusion of cohesin module from C. thermocellum to circular permutant of rosettasome subunit | n.d. | n.d. | Mitsuzawa et al. (2009) |
Designer nanosome | Chimeric scaffoldin | Cel A, Cel F/(C. cellulolyticum) | Cohesion–dockerin interaction | n.d. | n.d. | Fierobe et al. (2001) |