F
Fumio Tokunaga
Researcher at Osaka University
Publications - 24
Citations - 925
Fumio Tokunaga is an academic researcher from Osaka University. The author has contributed to research in topics: Rhodopsin & Complementary DNA. The author has an hindex of 16, co-authored 24 publications receiving 886 citations. Previous affiliations of Fumio Tokunaga include Nara Institute of Science and Technology.
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Journal ArticleDOI
Functional Expression and Site-Directed Mutagenesis of Photoactive Yellow Protein
TL;DR: Results suggest that Tyr42, Glu46, and Thr50 strongly interact with the chromophore, while Arg52 does not contribute the color tuning of PYP.
Journal ArticleDOI
Molecular cloning and functional characterization of a human scavenger receptor with C-type lectin (SRCL), a novel member of a scavenger receptor family.
TL;DR: Results indicate that hSRCL is a novel bacteria-binding receptor containing a C-type CRD and this receptor may play an important role in host defense.
Journal ArticleDOI
A novel subtype of G-protein-coupled receptor kinase, GRK7, in teleost cone photoreceptors
Osamu Hisatomi,Shinji Matsuda,Takunori Satoh,Shuichi Kotaka,Yoshikazu Imanishi,Fumio Tokunaga +5 more
TL;DR: The isolated retinal cDNA fragments encoding the putative G‐protein‐coupled receptor kinases (GRKs) were isolated from medaka are consistent with the concept that lower vertebrates have rod‐ and cone‐specific opsin kinases.
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Evidence for proton transfer from Glu-46 to the chromophore during the photocycle of photoactive yellow protein.
Yasushi Imamoto,Ken'ichi Mihara,Osamu Hisatomi,Mikio Kataoka,Fumio Tokunaga,Nina Bojkova,Kazuo Yoshihara +6 more
TL;DR: Results strongly suggest that the proton at Glu-46 is transferred to the chromophore during the photoconversion from PYP to PYPM.
Journal ArticleDOI
The primary structure and distribution of killifish visual pigments.
TL;DR: It is suggested that the relationships between the cell types and their respective visual pigment gene groups may be a common pattern among teleost fishes.