T
Tokitaka Oyama
Researcher at Kyoto University
Publications - 58
Citations - 6965
Tokitaka Oyama is an academic researcher from Kyoto University. The author has contributed to research in topics: Circadian clock & Circadian rhythm. The author has an hindex of 24, co-authored 50 publications receiving 6273 citations. Previous affiliations of Tokitaka Oyama include Scripps Research Institute & Nagoya University.
Papers
More filters
Journal ArticleDOI
Reciprocal Regulation Between TOC1 and LHY/CCA1 Within the Arabidopsis Circadian Clock
TL;DR: It is shown that both proteins bind to a region in the TOC1 promoter that is critical for its clock regulation, and these interactions form a loop critical for clock function inArabidopsis.
Journal ArticleDOI
Reconstitution of circadian oscillation of cyanobacterial KaiC phosphorylation in vitro
Masato Nakajima,Keiko Imai,Hiroshi Ito,Taeko Nishiwaki,Yoriko Murayama,Hideo Iwasaki,Tokitaka Oyama,Takao Kondo +7 more
TL;DR: The self-sustainable oscillation of KaiC phosphorylation in vitro is reconstituted by incubating KaiC with KaiA, KaiB, and adenosine triphosphate and the enigma of the circadian clock can now be studied in vitro by examining the interactions between three Kai proteins.
Journal ArticleDOI
Cloning of the Arabidopsis clock gene TOC1, an autoregulatory response regulator homolog.
Carl A. Strayer,Tokitaka Oyama,Thomas F. Schultz,Ramanujam Raman,David E. Somers,Paloma Mas,Satchidananda Panda,Joel A. Kreps,Steve A. Kay +8 more
TL;DR: The toc1 mutation causes shortened circadian rhythms in light-grown Arabidopsis plants and it is shown that TOC1 controls photoperiodic flowering response through clock function.
Journal ArticleDOI
The Arabidopsis HY5 gene encodes a bZIP protein that regulates stimulus-induced development of root and hypocotyl
TL;DR: P phenotypes indicate that the HY5 gene is responsible for the regulation of fundamental developmental processes of the plant cell: cell elongation, cell proliferation, and chloroplast development.
Journal ArticleDOI
Molecular interaction between COP1 and HY5 defines a regulatory switch for light control of Arabidopsis development
Lay-Hong Ang,Sudip Chattopadhyay,Ning Wei,Tokitaka Oyama,Kiyotaka Okada,Alfred Batschauer,Xing Wang Deng +6 more
TL;DR: It is shown that COP1 negatively regulates HY5, a bZIP protein and a positive regulator of photomorphogenic development, and proposed that the direct interaction with and regulation of transcription factors by COP1 may represent the molecular mechanism for its control of gene expression and photomorphic development.