In the present study , ghr that was similar to the conventional ghrs was termed as ghr1 , and another type was termed as ghr2 . meanwhile , using the same methods , zfghrl and zfghr2 were also isolated from zebra fish ( danio rerio ) est and htg genome sequences 同时，我们用相似的方法从斑马鱼的est序列和其高通量( htg )基因组序列分离出斑马鱼zfghr1和zfghr2 。
2.
Many organisms produce enzymes , termed photolyases , that specifically bind to these damage products and split the via a uv - a / blue light - dependent mechanism ( photoreactivation ) , thereby reversing the damage . these two photolyase are specific for either cpds ( cpd photolyase ) or 6 - 4 products ( 6 - 4 photolyase ) . a gene that expresses a protein with 6 - 4 photolyase activity in vitro , was recently cloned from high organisms ( arabidopsis thaliam , drosophila melanogaster , danio rerio , xenopus laevis and homo sapiens ) 目前已从高等生物拟南芥、鲐类、果蝇、人类和非洲爪蟾蜍属中克隆到有( 6 - 4 )光裂合酶活性的基因，本研究从盐生杜氏藻dunaliellasalina中克隆到( 6 - 4 )光裂合酶的基因，并将该基因在大肠杆菌中得以表达，这是首次在藻类中克隆到( 6 - 4 )光裂合酶基因，对光裂合酶的研究具有重要意义。
