One of the pair must be a purine and the other a pyrimidine ... we devised our structure, which rests mainly though not entirely on published experimental data and stereo-chemical arguments.

How do we study the molecular structure of DNA ... and guanine are double-ring molecules called purines, but cytosine, ...

The haloacid dehalogenase (HAD) superfamily (HADSF) of enzymes includes nucleotidases, which catalyze the hydrolysis of sugar phosphate bonds in 5′(3′) nucleoside monophosphates with specificity for ...

Controlling the topology and structure of entangled molecular strands is a key challenge in molecular engineering, ...

In a new study published in Cell Reports, researchers at the University of Freiburg reveal how a disordered protein segment ...

Hormone levels fluctuate like the tides, ebbing and flowing according to carefully orchestrated cycles. These hormones not only influence the body, but can cross into the brain and shape the behavior ...

While the presence and significance of melanin have long been accepted, its exact chemical makeup remains unclear. Melanin has an inherent diversity of structure and complexity, making understanding ...

This research was supported by the National Natural Science Foundation of China (Grant Nos. 82472687, 82073132, 82122054, and 82203340), the CAMS Innovation Fund for Medical Sciences (Grant No.

The book addresses this complaint by concretely demonstrating the range of topics — from electricity to biochemistry, protein structure, molecular engineering, and informatics — that a student will ...

Metabolomics, which reflects the overall changes in endogenous metabolites within an organism, holds substantial value in the exploration of disease mechanisms and the screening of molecular markers.