Diseases, Conditions, Syndromes

New anti-malaria drug findings reported

Artemisinin is derived from the leaves and flowers of the annual mugwort (Artemisia annua), and has been used in traditional Chinese medicine for centuries. Chinese researcher Tu Youyou recently tested its effectiveness, ...

Cancer

Scientists crack structure of enzyme complex linked to cancer

A research team led by a biochemist at the University of California, Riverside has solved the crystal structure for an enzyme that plays a key role in DNA methylation, the process by which methyl groups are added to the DNA ...

Diseases, Conditions, Syndromes

Possible path toward first anti-MERS drugs

If you haven't heard of Middle East Respiratory Syndrome, thank geography, NGOs, and government agencies like the Centers for Disease Control and Prevention and the World Health Organization (WHO) for keeping the new disease ...

HIV & AIDS

HIV/AIDS vaccines: Defining what works

Designing an effective HIV/AIDS vaccine is something of a paradox: a good vaccine would be safe and look enough like HIV to kick-start the immune system into neutralizing the virus – but the problem is that this is exactly ...

Parkinson's & Movement disorders

How disease mutations affect the Parkin protein

Researchers at the MRC Laboratory of Molecular Biology in the United Kingdom have determined the crystal structure of Parkin, a protein found in cells that when mutated can lead to a hereditary form of Parkinson's disease. ...

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Crystal structure

In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a motif, a set of atoms arranged in a particular way, and a lattice. Motifs are located upon the points of a lattice, which is an array of points repeating periodically in three dimensions. The points can be thought of as forming identical tiny boxes, called unit cells, that fill the space of the lattice. The lengths of the edges of a unit cell and the angles between them are called the lattice parameters. The symmetry properties of the crystal are embodied in its space group. A crystal's structure and symmetry play a role in determining many of its properties, such as cleavage, electronic band structure, and optical properties.

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