....since the day that God created man upon the earth, ... Deuteronomy 4:32
"DNA usually forms the classic double helix shape — two strands
wound around each other. But approximately 1% of the human 
genome has
the ability to fold into four-stranded ‘quadruple helix’ DNA structures called G-quadruplexes (G4s). G4s regulate
several key cellular processes (e.g., transcription) and have been
hypothesized to participate in others. In new research, a team of
scientists at Penn State University conducted the first genome-wide analysis of G4 distribution, thermostability, and selection. Their results, published in the journal Genome Research.
“The 3D structure of G4s can form transiently and how stable their structure is depends on their underlying DNA sequence and other factors,” Dr. Guilbet said.
“We found that, usually, G4s located within functional regions of the genome tend to be more stable.”
“In other words, it’s more likely that the DNA is folded into a G4 at
any given time and thus, more likely that the G4 is there for a
functional reason.”. SciNews
