Also as expected, the energy released is used by special proteins in the membrane.

They use special proteins, called light-harvesting complexes, to absorb the photons with very high effectiveness.

A special protein, called intrinsic factor, helps the body get vitamin B12 from food such as meat, poultry and dairy foods.

Your body uses a special protein, called intrinsic factor, released by cells in the stomach.

Cholesterol is moved round the body bound to special proteins, two of which have very different effects.

Both constants can be modified by special regulatory proteins.

The process involves special proteins called coagulation factors.

Some virulent bacteria produce special proteins that allow them to colonize parts of the host body.

It is special proteins that give nerve cells their shape and enable them to transmit electrical signals.

It is caused by special proteins called prions, and it always leads to death.