What does the suffix "-globulin" refer to in medical terminology?

The suffix "-globulin" in medical terminology is associated with proteins, specifically a group of globular proteins that play important roles in biological processes. These proteins are typically involved in immune responses (e.g., immunoglobulins), transport functions (e.g., albumin and various transport globulins), and various enzymatic functions.

The term "globulin" itself indicates a particular type of protein that is soluble in salt solutions and can be precipitated out, highlighting its significance in bodily functions, including blood plasma composition and immune system operation. Understanding this suffix is crucial in medical settings, as globulins are integral to diagnosing conditions related to immune function and overall health.

While other suffixes refer to different types of biomolecules, such as carbohydrates and lipids, "-globulin" specifically identifies a class of proteins.