| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Outline of Final Research Achievements |
Newly discovered 6-coordinated globins, neuroglobin (Ngb) and cytoglobin (Cgb), have been reported to protect tissues from various damages. In this work, we aimed to clarify the reaction mechanisms of Ngb and Cgb which can be novel targets for newly produced drugs. First, we have studied on several reactive oxygen and nitrogen species for Ngb and Cgb, and Cgb showed inhibition on a production of peroxynitrite. Since there was no scavenging activity for peroxynitrite in Cgb directly, we identified that Cgb could have an inhibitory effect on a production of peroxynitrite. Second, we also investigated on a correlation of enzymatic activities and structural features in Ngb. Although Ngb WT showed less scavenging activity for superoxide than 5-coordination mutant, we found that binding of a certain lipid increased a scavenging activity for superoxide with a slight formation of 5-coordination. As a consequence, we elucidated some parts of functional mechanisms in Ngb and Cgb.
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