The Relationship between Chemical Reaction and Photo-signal Relay in Membrane Embedded Photoreceptors

摘要：

1.Introduction Microorganisms are subjected to a variety of environmental stimuli to which they respond and adapt. Light-driven ion transporters,Bacteriorhodopsin (BR) and Halorhodopsin (HR),have been modified by evolution to produce sensory receptors,Sensory rhodopsin Ⅰ (SRI) and Sensory rhodopsin Ⅱ (SRII), controlling motility behavior to obtain light-energy and to avoid light of shorter wavelengths which contain harmful near-UV.SRI and SRII form the signaling complexes with their cognate transducer protein,HtrI and HtrlI,within the membrane.Although the functions are distinctly different,secondary and tertiary structures of BR,HR and SRII are quite similar among them.What is the determinant(s) of the function?

关键词： membrane protein photo-signal transduction rhodopsin protein-protein interaction

作者: Yuki Sudo

作者单位: Division of Biological Science,Graduate School of Science,Nagoya University,Nagoya 464-8602,Japan;JST,PRESTO,Japan

会议类型: 国际会议

会议名称: 18th International Symposium on Fine Chemistry and Functional Polymers,4th IUPAC International Symposium on Novel Materials and Their Synthesis(第18届国际精细化学和功能高分子学术讨论会暨第四届IUPAC 国际新型材料及其制备学术讨论会)

会议地点: 江苏镇江

会议语种:英文

页码: 199-200

在线出版日期: 2008-10-15（万方平台首次上网日期，不代表论文的发表时间）