Purification and Characterization of Recombinant Cel7A From Maize Seed
Document Type
Article
Publication Date
1-1-2014
Description
The corn grain biofactory was used to produce Cel7A, an exo-cellulase (cellobiohydrolase I) from Hypocrea jecorina. The enzymatic activity on small molecule substrates was equivalent to its fungal counterpart. The corn grain-derived enzyme is glycosylated and 6 kDa smaller than the native fungal protein, likely due to more sugars added in the glycosylation of the fungal enzyme. Our data suggest that corn seed-derived cellobiohydrolase (CBH) I performs as well as or better than its fungal counterpart in releasing sugars from complex substrates such as pre-treated corn stover or wood. This recombinant protein product can enter and expand current reagent enzyme markets as well as create new markets in textile or pulp processing. The purified protein is now available commercially.
Citation Information
Hood, Nathan C.; Hood, Kendall R.; Woodard, Susan L.; Devaiah, Shivakumar P.; Jeoh, Tina; Wilken, Lisa; Nikolov, Zivko; Egelkrout, Erin; Howard, John A.; and Hood, Elizabeth E.. 2014. Purification and Characterization of Recombinant Cel7A From Maize Seed. Applied Biochemistry and Biotechnology. Vol.174(8). 2864-2874. https://doi.org/10.1007/s12010-014-1232-4 PMID: 25248991 ISSN: 0273-2289