Abstract
Background: LinB, as a Haloalkane dehalogenase, has good catalytic activity for many highly toxic and recalcitrant compounds, and can realize the elimination of chemical weapons HD in a green non-toxic mode.
Objectives: In order to display Haloalkane dehalogenase LinB on the surface of Bacillus subtilis spore.
Methods: We have constituted the B. subtilis spore surface display system of halogenated alkanes dehalogenase LinB by gene recombination.
Results: Data revealed that LinB can display on spore surface successfully. The hydrolyzing HD analogue 2-chloroethyl ethylsulfide (2-CEES) activity of displayed LinB spores was 4.30±0.09 U/mL, and its specific activity was 0.78±0.03U/mg. Meanwhile, LinB spores showed a stronger stress resistance activity on 2-CEES than free LinB. This study obtained B. subtilis spores of LinB (phingobium japonicum UT26) with enzyme activity that was not reported before.
Conclusion: Spore surface display technology uses resistance spore as the carrier to guarantee LinB activity, enhances its stability, and reduces the production cost, thus expanding the range of its application.
Keywords: Haloalkane dehalogenase LinB, Bacillus subtilis, spore surface display, catalytic activity, gene recombination, 2- CEES, enzyme activity.
[http://dx.doi.org/10.1016/j.cbpa.2004.02.012] [PMID: 15062775]
[http://dx.doi.org/10.1021/acs.jcim.7b00070] [PMID: 28696117]
[http://dx.doi.org/10.1007/s00253-015-6686-y] [PMID: 25998660]
[http://dx.doi.org/10.1007/s00253-015-6954-x] [PMID: 26373728]
[http://dx.doi.org/10.1128/AEM.71.4.2183-2185.2005] [PMID: 15812056]
[http://dx.doi.org/10.1021/es204143x] [PMID: 22385211]
[http://dx.doi.org/10.1021/es2046487] [PMID: 22578084]
[http://dx.doi.org/10.1016/j.chemosphere.2012.10.019] [PMID: 23177717]
[http://dx.doi.org/10.1016/j.bioorg.2017.04.015] [PMID: 28527381]
[http://dx.doi.org/10.1002/biot.200600166] [PMID: 17136732]
[http://dx.doi.org/10.1007/s00284-019-01723-7] [PMID: 31278426]
[http://dx.doi.org/10.1371/journal.pone.0191627] [PMID: 29370221]
[http://dx.doi.org/10.1007/s00253-016-8080-9] [PMID: 28062973]
[PMID: 28605732]
[http://dx.doi.org/10.1186/1475-2859-13-30] [PMID: 24568122]
[http://dx.doi.org/10.1371/journal.pone.0021454] [PMID: 21738670]
[http://dx.doi.org/10.1016/S0021-9258(18)63298-3] [PMID: 4984698]
[http://dx.doi.org/10.1128/JB.01116-06] [PMID: 16936016]
[http://dx.doi.org/10.1016/j.biotechadv.2007.10.002] [PMID: 18068937]
[PMID: 30088242]
[http://dx.doi.org/10.1128/JB.06121-11] [PMID: 21984783]
[http://dx.doi.org/10.1007/s00018-009-0067-6] [PMID: 19554258]
[PMID: 18051283]
[http://dx.doi.org/10.1016/j.pestbp.2017.05.008] [PMID: 28755689]
[http://dx.doi.org/10.1186/1475-2859-9-2] [PMID: 20082702]
[http://dx.doi.org/10.1263/jbb.105.503] [PMID: 18558341]
[http://dx.doi.org/10.1016/S0167-7799(02)00006-9] [PMID: 12480350]