Affiliation: Hokkaido University
Hasemi T, Kikukawa T, Watanabe Y, Aizawa T, Miyauchi S, Kamo N, et al
. Photochemical study of a cyanobacterial chloride-ion pumping rhodopsin. Biochim Biophys Acta Bioenerg. 2018;: pubmed publisher
..Thus, Asp200 residue probably deprotonates during L decay and then drives the Cl- movement to the CP channel. ..
Kushibiki T, Kamiya M, Aizawa T, Kumaki Y, Kikukawa T, Mizuguchi M, et al
. Interaction between tachyplesin I, an antimicrobial peptide derived from horseshoe crab, and lipopolysaccharide. Biochim Biophys Acta. 2014;1844:527-34 pubmed publisher
..The calculated model structure suggested that the cationic residues of TP I interact with phosphate groups and saccharides of LPS, whereas hydrophobic residues interact with the acyl chains of LPS. ..
Kikukawa T, Kusakabe C, Kokubo A, Tsukamoto T, Kamiya M, Aizawa T, et al
. Probing the Cl--pumping photocycle of pharaonis halorhodopsin: Examinations with bacterioruberin, an intrinsic dye, and membrane potential-induced modulation of the photocycle. Biochim Biophys Acta. 2015;1847:748-58 pubmed publisher
..This result may reflect the differences in dielectric constants and/or lengths of the pathways for Cl- transfers during N to O and O to NpHR' transitions. ..
Hasemi T, Kikukawa T, Kamo N, Demura M. Characterization of a Cyanobacterial Chloride-pumping Rhodopsin and Its Conversion into a Proton Pump. J Biol Chem. 2016;291:355-62 pubmed publisher
..MrHR most likely evolved from a H(+) pump, but it has not yet been highly optimized into a mature Cl(-) pump. ..
Nakamura S, Kikukawa T, Tamogami J, Kamiya M, Aizawa T, Hahn M, et al
. Photochemical characterization of actinorhodopsin and its functional existence in the natural host. Biochim Biophys Acta. 2016;1857:1900-1908 pubmed publisher