Don't be alarmed by the red meat juice in your raw steak packet. While it may look like blood, there's another reason why raw ...

Iron is a mineral that's important for the health of your red blood cells. It's found in two red blood cell proteins: ...

In 1961 the structure of one protein, myoglobin, was known at 6 Å resolution and its 2 Å structure would soon be published. The structural determinations of hemoglobin and hen lysozyme were well ...