In fact, that's precisely why this carbon will be very reactive. And what will happen is when penicillin actually enters the active side of that glycopeptic glycopeptide transpeptidase, this Serene will react, the oxygen will react with the carbon, and that will break this bond and that will relieve some of that stereotyinderrance that existed as a result of this high reactivity of this fourmember ring. So the betalactam. And so once this bond is broken, those two electrons in that bond will grab an H atom and will basically form this intermediate structure. And as soon as we form this intermediate structure, that serine residue is no longer able to actually further catalyze that reaction because we now block and inhibit that activity of that serine residue. And so this is A suicide inhibitor because it essentially tricks that active site into thinking it's a substrate.