Molecular biologists have long noted that the arrangement between bases on the two strands allows shared electrons to inhabit donut shaped clouds above and below the bases. Thus, the interior of the molecule is essentially a huge stack of pi orbitals. Theoretically, you might be able to introduce an electron at one end of the molecule and it could tunnel, in a rather effortless manner, to the other end. Now there is experimental evidence for this hypothesis. This work could possible lead to cures for skin cancer.
Chaperone proteins are proteins that help fold other proteins inside a cell.
The study of such proteins indicates that the intracellular dynamics involving protein function are far more complicated than previously suspected. But in reality, the cell interior is more like a crowded marketplace, with proteins hustling from one job to the next, jostling and potentially interfering with one another along the way. Rev. Biochem, 685-686. During transcription, RNA polymerase synthesizes an RNA molecule in the 5' to 3' direction by using the nucleotide sequence of one strand of DNA as a template. Sometimes, this process is prematurely terminated, generating mRNA molecules that are missing chunks from the 3' end.