For another sequence, water molecules "froze" between the transcription factor and DNA, bridging the two. "Understanding the mechanisms of interactions between transcription factors and DNA is ...

The circles represent water molecules. The molecules are randomly arranged. They interact with each other because of their attractions. The motion lines show that they are moving.

Water is synonymous with life, but the dynamic, multifaceted interaction that brings H 2 O molecules together—the hydrogen bond—remains mysterious. Hydrogen bonds result when hydrogen and ...