Degtyarev S Kh, Netesova N A, Abdurashitov M A, Shevchenko A V
SibEnzyme, Novosibirsk, Russia.
Gene. 1997 Mar 18;187(2):217-9. doi: 10.1016/s0378-1119(96)00752-4.
The gene for BstF5I-1 DNA-methyltransferase (MTase) from Bacillus stearothermophilus F5 (a FokI isoschizomer, recognizing 5'-GGATG-3') was cloned and its nucleotide (nt) sequence was determined. Analysis of deduced amino acid (aa) sequence shows that M x BstF5I-1 belongs to D21 class of MTases and has a little homology with M x FokI. M x BstF5I-1 modifies only the upper strand of recognition sequence (5'-GGATG-3').
克隆了嗜热脂肪芽孢杆菌F5(一种FokI同裂酶,识别序列为5'-GGATG-3')的BstF5I-1 DNA甲基转移酶(MTase)基因,并测定了其核苷酸(nt)序列。对推导的氨基酸(aa)序列分析表明,Mx BstF5I-1属于MTases的D21类,与Mx FokI有少许同源性。Mx BstF5I-1仅修饰识别序列(5'-GGATG-3')的上链。