PMID- 27502455 OWN - NLM STAT- MEDLINE DCOM- 20170403 LR - 20181202 IS - 1614-7499 (Electronic) IS - 0944-1344 (Linking) VI - 23 IP - 21 DP - 2016 Nov TI - A self-sufficient system for removal of synthetic dye by coupling of spore-displayed triphenylmethane reductase and glucose 1-dehydrogenase. PG - 21319-21326 AB - Biodegradation of triphenylmethane dyes by microorganisms is hampered by the transport barrier imposed by cell membranes. On the other hand, cell-free systems using enzyme-based biodegradation strategy are costly. Therefore, an efficient and inexpensive approach circumventing these problems is highly desirable. Here, we constructed a self-sufficient system for synthetic dye removal by coupling of spore surface-displayed triphenylmethane reductase (TMR) and glucose 1-dehydrogenase (GDH) for the first time. Display of both TMR and GDH significantly enhanced their stability under conditions of extreme pH and temperature. These engineered spores also exhibited more robust long-term stability than their purified counterparts. Furthermore, we observed that a high ratio of spore-displayed GDH is necessary for high dye degradation efficiency. These results indicate that this continuous dye removal system with cofactor regeneration offers a promising solution for dye biodegradation applications. FAU - Gao, Fen AU - Gao F AD - College of Life Science, Zhejiang University, Hangzhou, 310058, China. FAU - Ding, Haitao AU - Ding H AD - Polar Research Institute of China, Shanghai, 200136, China. FAU - Xu, Xiaohong AU - Xu X AD - College of Life Science, Zhejiang University, Hangzhou, 310058, China. FAU - Zhao, Yuhua AU - Zhao Y AD - College of Life Science, Zhejiang University, Hangzhou, 310058, China. yhzhao225@zju.edu.cn. LA - eng PT - Journal Article DEP - 20160808 PL - Germany TA - Environ Sci Pollut Res Int JT - Environmental science and pollution research international JID - 9441769 RN - 0 (Coloring Agents) RN - 0 (Environmental Pollutants) RN - 0 (Trityl Compounds) RN - 8O4UTW9E17 (triphenylmethane) RN - EC 1.- (Oxidoreductases) RN - EC 1.1.1.47 (Glucose 1-Dehydrogenase) SB - IM MH - Bacillus subtilis/*metabolism MH - Biodegradation, Environmental MH - Coloring Agents/*isolation & purification/*metabolism MH - Environmental Pollutants/isolation & purification/metabolism MH - Glucose 1-Dehydrogenase/metabolism MH - Oxidoreductases/*isolation & purification/*metabolism MH - Spores, Bacterial/*metabolism MH - Temperature MH - Trityl Compounds/*metabolism OTO - NOTNLM OT - Bacillus subtilis OT - Biodegradation OT - Cofactor regeneration OT - Glucose 1-dehydrogenase (GDH) OT - Spore surface display (ssd) OT - Triphenylmethane dye OT - Triphenylmethane reductase (TMR) EDAT- 2016/08/10 06:00 MHDA- 2017/04/04 06:00 CRDT- 2016/08/10 06:00 PHST- 2016/02/20 00:00 [received] PHST- 2016/07/26 00:00 [accepted] PHST- 2016/08/10 06:00 [pubmed] PHST- 2017/04/04 06:00 [medline] PHST- 2016/08/10 06:00 [entrez] AID - 10.1007/s11356-016-7330-9 [pii] AID - 10.1007/s11356-016-7330-9 [doi] PST - ppublish SO - Environ Sci Pollut Res Int. 2016 Nov;23(21):21319-21326. doi: 10.1007/s11356-016-7330-9. Epub 2016 Aug 8.