1. Guanine nucleotide Exchange Factor;鸟苷酸交换因子；youdao2. In DNA its complementary Base is guanine.在去氧核糖核酸(DNA)中，其互补基是鸟嘌呤。youdao3. In DNA its complementary Base is guanine.在去氧核糖核酸(DNA)中，其互补基是鸟嘌呤。youdao