title: [Progress in the sequence and structure properties, thermostability mechanism and molecular modification of xylose isomerase: a review].
abstract: With the development of low-carbon economy and renewable resource, fermentation of the pentose sugar xylose to produce ethanol becomes a very hot topic. The recombinant Saccharomyces cerevisiae can be constructed by expressing heterologous xylose isomerase (XI). Because Thermus thermophilus XI (TthXI) does not need cofactor, it has been developed for establishing the utilization pathway of xylose in S. cerevisiae. In this article, we reviewed the progress on xylose isomerase. We first introduced the primary properties, sequence and structure characters of xylose isomerase, and discussed its thermostability. The molecular modification of xylose isomerase, including of substrate specificity and thermostability were discussed in detail. Meanwhile, combined with our own research, we also discussed how to improve the xylose isomerase activity at room temperature. Finally, we suggested perspectives of xylose isomerase.
authors.affiliation: School of Chemical and Biological Engineering, Yancheng Institue of Technology, Yancheng 224051, China ycitxuwei@ycit.edu.cn
authors.forename: Wei
authors.initials: W
authors.lastname: Xu
authors.forename: Ming
authors.initials: M
authors.lastname: Yan
authors.forename: Pingkai
authors.initials: P
authors.lastname: OuYang
mesh_terms: D019747:Aldose-Ketose Isomerases / Q000737:chemistry* / Q000235:genetics* / Q000378:metabolism; D002384:Catalysis; D004795:Enzyme Stability; D006358:Hot Temperature; D011994:Recombinant Proteins / Q000096:biosynthesis / Q000235:genetics; D012441:Saccharomyces cerevisiae / Q000235:genetics / Q000378:metabolism; D013379:Substrate Specificity
chemical_list: D011994:Recombinant Proteins; D019747:Aldose-Ketose Isomerases; C023298:xylose isomerase