Primary intermediates of rhodopsin studied by low temperature spectrophotometry and laser photolysis Bathorhodopsin, hypsorhodopsin and photorhodopsin
Primary intermediates of rhodopsin studied by low temperature spectrophotometry and laser photolysis Bathorhodopsin, hypsorhodopsin and photorhodopsin
复制标题
低温分光光度法和激光光解研究视紫红质初级中间体红视紫红质、下视紫红质和光视紫红质
DOI:
10.1016/0042-6989(84)90306-7
复制
发表时间:
1984
期刊:
影响因子:
1.8
通讯作者:
S. Matuoka
中科院分区:
文献类型:
--
作者:
T. Yoshizawa;Y. Shichida;S. Matuoka
The primary photochemical processes of rhodopsin studied by low temperature spectrophotometry and picosecond laser spectroscopy in our group was summarized. Low temperature spectroscopic experiments demonstrated that the retinylidene chromophores of hypso- and bathorhodopsins are in a twisted all-transforms. Excitation of rhodopsin with 532 nm laser pulse (width: 25 psec) yielded a new bathochromic photoproduct “photorhodopsin”; its spectrum was located at longer wavelengths than that of bathorhodopsin. Photorhodopsin decays to bathorhodopsin with time constants of about 200 psec in squid and 40 psec in cattle. Squid and octopus hypsorhodopsins were produced within 25 psec by high energy pulse, but not by low energy pulse. Thus hypsorhodopsin is produced by two photon reactions (sequential two photochemical reactions) and decayed to bathorhodopsin with time constant of 125 psec.
影响因子:
3.4
作者:
Buchert,J;Stefancic,V;Doukas,AG;Alfano,RR;Callender,RH;Pande,J;Akita,H;Balogh-Nair,V;Nakanishi,K
通讯作者:
Nakanishi,K
影响因子:
2.9
作者:
EYRING, G;CURRY, B;MATHIES, R
通讯作者:
MATHIES, R