Relocation of dehydroquinate dehydratase to the periplasmic space improves dehydroshikimate production with Gluconobacter oxydans strain NBRC3244
Relocation of dehydroquinate dehydratase to the periplasmic space improves dehydroshikimate production with Gluconobacter oxydans strain NBRC3244
复制标题
将脱氢奎宁酸脱水酶重新定位到周质空间可提高氧化葡糖杆菌菌株 NBRC3244 的脱氢莽草酸产量
DOI:
10.1007/s00253-021-11476-8
复制
发表时间:
2021
影响因子:
5
通讯作者:
Yakushi Toshiharu
中科院分区:
文献类型:
--
作者:
Nakamura Kentaro;Nagaki Kakeru;Matsutani Minenosuke;Adachi Osao;Kataoka Naoya;Ano Yoshitaka;Theeragool Gunjana;Matsushita Kazunobu;Yakushi Toshiharu
3-Dehydroshikimate (3-DHS) is a key intermediate for the synthesis of various compounds, including the antiviral drug oseltamivir. TheGluconobacter oxydansstrain NBRC3244 intrinsically oxidizes quinate to produce 3-dehydroquinate (3-DHQ) in the periplasmic space. Even though a considerable activity is detected in the recombinantG. oxydanshomologously overexpressing type II dehydroquinate dehydratase (DHQase) encoded in thearoQgene at a pH where it grows, an alkaline shift of the culture medium is required for 3-DHS production in the middle of cultivation. Here, we attempted to adopt type I DHQase encoded in thearoDgene ofGluconacetobacter diazotrophicusstrain PAL5 because the type I DHQase works optimally at weak acid, which is preferable for growth conditions ofG. oxydans. In addition, we anticipated that subcellular localization of DHQase is the cytoplasm, and therefore, transports of 3-DHQ and 3-DHS across the cytoplasmic membrane are rate-limiting steps in the biotransformation. The Sec- and TAT-dependent signal sequences for secretion were attached to the N terminus of AroD to change the subcellular localization.G. oxydansthat expresses the TAT-AroD derivative achieved 3-DHS production at a tenfold higher rate than the reference strain that expresses wild-type AroD even devoid of alkaline shift. Enzyme activity with the intact cell suspension and signal sequence cleavage supported the relocation of AroD to the periplasmic space. The present study suggests that the relocation of DHQase improves 3-DHS production inG. oxydansand represents a proof of concept for the potential of enzyme relocation in metabolic engineering.Key points•Type-I dehydroquinate dehydratase (DHQase) was expressed in Gluconobacter oxydans.•Cytoplasmic DHQase was relocated to the periplasmic space in G. oxydans.•Relocation of DHQase in G. oxydans improved 3-dehydroshikimate production.
登录
查看更多内容
DOI:
--
发表时间:
2008
期刊:
Biosci. Biotechnol. Biochem. 72
影响因子:
--
作者:
O. Adachi;Y. Ano;H. Toyama;K. Matsushita
通讯作者:
K. Matsushita
影响因子:
1.6
作者:
Adachi, O;Yoshihara, N;Matsushita, K
通讯作者:
Matsushita, K
影响因子:
1.6
作者:
Adachi, Osao;Ano, Yoshitaka;Matsushita, Kazunobu
通讯作者:
Matsushita, Kazunobu
DOI:
10.1080/00021369.1985.10866858
发表时间:
1985
期刊:
Agricultural and biological chemistry
影响因子:
--
作者:
M. Ameyama;E. Shinagawa;K. Matsushita;O. Adachi
通讯作者:
O. Adachi
DOI:
--
发表时间:
2008
期刊:
Appl. Microbiol. Biotechnol. 81
影响因子:
--
作者:
O. Adachi;ら
通讯作者:
ら