Physicists have shown that one of the building blocks of DNA and RNA, adenine, has an unexpectedly variable range of ionization energies along its reaction pathways. Early Earth's atmosphere provided ...

This image illustrates the chemical structure of a purine molecule, highlighting the numbering of the carbon and nitrogen atoms. The purine structure consists of a pyrimidine ring (positions 1 to 6) ...

Nicotinamide adenine dinucleotide (abbreviated NAD and sometimes called nadide) is a biomolecule present in all living cells. As its name implies, it consists of two nucleotides, one with an adenine ...

Mutations in the gene that encodes a protein called adenine nucleotide translocator (ANT) cause a variety of conditions, such as heart disease and weakness of the eye muscles, but the underlying ...