Horizontal gene transfer Another form of DNA methylation, 6mA, was erroneously reported by other researchers in several organisms before its detection was traced to bacterial contamination.

Heme binding to a bacterial transcription factor is critical for hydrogen sulfide (H2S) signaling, report researchers from Japan. Heme binding promotes the reaction of H2S with the transcription ...

Made-to-order DNA goes big: new tech doubles size of custom genetic sequences Enzyme-based techniques and refinements in organic chemistry ease the generation of extended DNA sequences.