Nucleoprotein filaments made up of Rad51 or Dmc1 recombinases, the core structures of recombination, engage in ATP-dependent DNA-strand exchange. The ability of recombinases to form filaments is ...

Usually enzyme complexes make multistep processes easier by catalyzing sequential reactions in which the product of one enzyme becomes the substrate for the next. In a new finding, researchers report ...

From the smooth tubes of our arteries and veins to the textured pockets of our internal organs, our bodies are made of tissues arranged in complex shapes that aid in performing specific functions.

A complex form of carbon crucial for life on Earth has been spotted outside the solar system for the first time. Its presence helps show how the compounds needed for life could come from space. The ...

Scientists have used high pressure and high temperature experiments to recreate an unusually complex form of nitrogen in the lab for the first time. An unusually complex form of one of the most ...

For decades, the share of US spending going to health care costs has continued to grow. New treatments, many of which have helped Americans live longer and better lives, have contributed to these ...

A taxpayer, like the Internal Revenue Service, may argue that the form of a transaction is different from its substance, and that the substance should govern the tax consequences of the transaction.

Continuing complex study of form and space methodology, this class is a process of visually organizing infinite varieties of elements, relationships, and spatial positions. It is a process of visual ...