The molecule has one shape when ferrying oxygen molecules and a slightly different shape when it is not Its 10,000 atoms are assembled into four chains, each a helix with several bends.

Red blood cells use a protein called hemoglobin to transport oxygen. Hemoglobin, in turn, is made of smaller proteins known as heme, which contain an iron molecule that binds and transports the oxygen ...

At the core of a hemoglobin molecule is an iron carrying component called heme, which can be loaded with oxygen. The shape of the red blood cell is useful to flexibly navigate blood vessels of all ...

Hemoglobin, in turn, is made of smaller proteins known as heme, which contain an iron molecule that binds and transports the oxygen. “Our pathogens need iron for the same reasons,” Wander ...

Red blood cells contain an iron-rich protein called hemoglobin. Hemoglobin binds to oxygen in the lungs, allowing red blood cells to carry and deliver it throughout the body. Anemia is measured ...

Schechter says that Murayama “was ahead of his time” in connecting the structure of a molecule to its function, even if he did so imperfectly. Murayama later developed a laboratory test to detect ...

The use of recombinant hemoglobin as an oxygen carrier in artificial blood substitutes has had limited success due to the toxicity of the free molecule. Now a team of researchers has produced a ...