Open AccessPhotoreactivation of (6–4) photolyase in Dunaliella salina
Author(s) -
Yan Lv Xue,
Rong Qiao Dai,
Xiong Yan,
Xu Hui,
You Fang Fang,
Cao Yu,
He Xuan,
Cao Yi
Publication year - 2008
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.2008.01144.x
Subject(s) - photolyase , pyrimidine dimer , dunaliella salina , biology , biochemistry , botany , algae , gene , dna repair
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.