That’s what I learned from work this week. I was starting to get frustrated several days ago when my first round of subcloning yielded no positive colonies as shown by restriction digest. After consulting with another post-doc in my lab, he suspected a strange phenomenon known as BamHI star activity. Apparently, under certain conditions, this restriction enzyme can exhibit a relaxation of its specificity, leading to non-specific digestion of my product. The two lanes shown in the picture, believe it or not, were digested with the same enzymes! (If you had to know, it was NotI and BamHI) I just repeated it the second time using less enzyme and over a shorter time, and voila! behold my beautiful clone! Yes, it’s sad that the only thing I have to report is from work, but that’s pretty much what I’ve been up to all week.