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Susumu Hara
Researcher at Yamagata University
Publications - 5
Citations - 354
Susumu Hara is an academic researcher from Yamagata University. The author has contributed to research in topics: Phosphorylation & G protein-coupled receptor kinase. The author has an hindex of 5, co-authored 5 publications receiving 317 citations.
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Journal ArticleDOI
Authentically Phosphorylated α-Synuclein at Ser129 Accelerates Neurodegeneration in a Rat Model of Familial Parkinson's Disease
Hiroyasu Sato,Shigeki Arawaka,Susumu Hara,Shingo Fukushima,Kaori Koga,Shingo Koyama,Takeo Kato +6 more
TL;DR: It is demonstrated that authentically Ser129-phosphorylated α-syn accelerates A53T α-Syn neurotoxicity without the formation of detergent-insoluble α- syn, and suggests that the degenerative process could be constrained by inhibiting the kinase that phosphorylates α- Syn at Ser129.
Journal ArticleDOI
Phosphorylated α-Synuclein at Ser-129 Is Targeted to the Proteasome Pathway in a Ubiquitin-independent Manner
Youhei Machiya,Susumu Hara,Shigeki Arawaka,Shingo Fukushima,Hiroyasu Sato,Masahiro Sakamoto,Shingo Koyama,Takeo Kato +7 more
TL;DR: Data show that Ser-129-phosphorylated a-Syn is targeted to the proteasome pathway in a ubiquitin-independent manner, in addition to undergoing deph phosphorylation.
Journal ArticleDOI
N-terminal region of α-synuclein is essential for the fatty acid-induced oligomerization of the molecules
Hiroki Karube,Masahiro Sakamoto,Shigeki Arawaka,Susumu Hara,Hiroyasu Sato,Chang-Hong Ren,Saori Goto,Shingo Koyama,Manabu Wada,Toru Kawanami,Keiji Kurita,Takeo Kato +11 more
TL;DR: The results indicate that the N‐terminus of αS is essential for the PUFA‐induced αS oligomerization, and PUFA binds recombinant αS protein through its N‐Terminal region.
Journal ArticleDOI
Serine 129 phosphorylation of membrane-associated α-synuclein modulates dopamine transporter function in a G protein–coupled receptor kinase–dependent manner
Susumu Hara,Shigeki Arawaka,Hiroyasu Sato,Youhei Machiya,Can Cui,Asuka Sasaki,Shingo Koyama,Takeo Kato +7 more
TL;DR: The data suggest a role of Ser-129–phosphorylated α-synuclein in modulating intracellular dopamine levels and damaging dopaminergic neurons in Parkinson disease.
Journal ArticleDOI
Contribution of endogenous G-protein-coupled receptor kinases to Ser129 phosphorylation of α-synuclein in HEK293 cells
Masahiro Sakamoto,Shigeki Arawaka,Susumu Hara,Hiroyasu Sato,Can Cui,Youhei Machiya,Shingo Koyama,Manabu Wada,Toru Kawanami,Keiji Kurita,Takeo Kato +10 more
TL;DR: It is indicated that endogenous GRK3 and GRK6, but not GRK2 or GRK5, contribute to Ser129 phosphorylation of alphaS in HEK293 cells, which seems to play a crucial role in the pathogenesis of Parkinson's disease.