title: Photoreactivation of (6-4) photolyase in Dunaliella salina.
abstract: Dunaliella salina is a unicellular green alga and possesses two types of photolyase: Class II cyclobutane pyrimidine dimers (CPD) photolyase and (6-4) photolyase. The gene of D. salina (6-4) photolyase is the first one found in unicellular organisms. CPD photolyases have been extensively studied but (6-4) photolyases are less understood. Because of the data observed in this study, D. salina (6-4) photolyase is insensitive to high salinity; whether it can tolerate a higher level of salinity than other (6-4) photolyases needs to be studied further. However, evidence is provided that (6-4) photolyases might be highly conserved among different species, not only in the sequence identity but also in the photorepair mechanism.
authors.affiliation: College of Life Sciences, Sichuan University, Chengdu, Sichuan, China.
authors.forename: Xue
authors.initials: X
authors.lastname: Yan Lv
authors.forename: Dai
authors.initials: D
authors.lastname: Rong Qiao
authors.forename: Yan
authors.initials: Y
authors.lastname: Xiong
authors.forename: Hui
authors.initials: H
authors.lastname: Xu
authors.forename: Fang Fang
authors.initials: FF
authors.lastname: You
authors.forename: Yu
authors.initials: Y
authors.lastname: Cao
authors.forename: Xuan
authors.initials: X
authors.lastname: He
authors.forename: Yi
authors.initials: Y
authors.lastname: Cao
mesh_terms: D000460:Chlorophyta / Q000201:enzymology*; D004260:DNA Repair; D004255:Deoxyribodipyrimidine Photo-Lyase / Q000302:isolation & purification / Q000378:metabolism*; D004579:Electron Transport; D006863:Hydrogen-Ion Concentration; D018462:Photobiology; D011740:Pyrimidine Dimers / Q000378:metabolism; D054712:Salinity; D014466:Ultraviolet Rays
chemical_list: D011740:Pyrimidine Dimers; C098727:pyrimidine(6-4)pyrimidone photolyase; D004255:Deoxyribodipyrimidine Photo-Lyase