RRC ID 55726
著者 Kobayashi Y, Nojima Y, Sakamoto T, Iwabuchi K, Nakazato T, Bono H, Toyoda A, Fujiyama A, Kanost MR, Tabunoki H.
タイトル Comparative analysis of seven types of superoxide dismutases for their ability to respond to oxidative stress in Bombyx mori.
ジャーナル Sci Rep
Abstract Insects are well adapted to changing environmental conditions. They have unique systems for eliminating reactive oxygen species (ROS). Superoxide dismutase (SOD) is a key enzyme that plays a primary role in removing ROS. Bombyx mori is a lepidopteran insect, whose body size is larger than the model insect Drosophila melanogaster, which enabled us to more easily examine gene expression at the tissue level. We searched B. mori SOD (BmSOD) genes using genome database, and we analyzed their function under different type of oxidative stress. Consequently, we identified four new types of BmSODs in addition to the three types already known. Two of the seven types had a unique domain architecture that has not been discovered previously in the SOD family, and they were expressed in different tissues and developmental stages. Furthermore, these BmSODs responded differently to several kinds of stressors. Our results showed that the seven types of BmSODs are likely to play different roles in B. mori; therefore, B. mori could be used to distinguish the functions of each SOD for resistance to oxidative stress that changes with the environmental conditions.
巻・号 9(1)
ページ 2170
公開日 2019-2-18
DOI 10.1038/s41598-018-38384-8
PII 10.1038/s41598-018-38384-8
PMID 30778096
PMC PMC6379424
MeSH Animals Bombyx / enzymology* Bombyx / genetics Bombyx / growth & development Gene Expression Regulation, Developmental Gene Expression Regulation, Enzymologic Genes, Insect Insect Proteins / chemistry Insect Proteins / genetics Insect Proteins / metabolism* Manduca / enzymology Manduca / genetics Oxidative Stress Phylogeny Protein Domains RNA, Messenger / genetics RNA, Messenger / metabolism Reactive Oxygen Species / metabolism Superoxide Dismutase / chemistry Superoxide Dismutase / genetics Superoxide Dismutase / metabolism* Tissue Distribution
IF 4.011
引用数 4
リソース情報
カイコ o751