Poly(ADP-ribosyl)ation by poly(ADP-ribose) polymerases regulates the interaction of many DNA damage and repair factors with sites of DNA strand lesions. The interaction of these factors with poly (ADP ...

In living organisms today, complex molecules like RNA and DNA are constructed with the help of enzymes. So how did these molecules form before life (and enzymes) existed? Why did some molecules end up ...

RNA is a single stranded molecule containing a ribose sugar. It has a distinctive structure and, unlike DNA, there are variations and various types of RNA structures. A base is attached to the 1' ...

The sugar ribose is more quickly phosphorylated compared to other sugars with the same chemical formula but a different shape. This selective phosphorylation could explain how ribose became the sugar ...

Scientists analyzing asteroid Bennu samples have discovered sugars essential to life and a unique gum-like substance, offering new insights into early solar system chemistry and the origins of life.