Globin

Definition

Globin is a group of proteins that form part of the structure of hemoglobin, the oxygen-carrying molecule in red blood cells. These proteins bind with heme groups to transport oxygen and carbon dioxide through the bloodstream.

Related terms

Hemoglobin:

A protein in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.

Erythrocytes:

Also known as red blood cells, these are the most common type of blood cell and the principal means of delivering oxygen to body tissues via the circulatory system.

Oxygen saturation: A measure of how much oxygen the hemoglobin in the blood is carrying as a percentage of the maximum it could carry