Globular protein
Globular Protein
Globular proteins or spheroproteins are one of the two main protein classes, the other being fibrous protein. They are spherical (globular) in shape and soluble in water, unlike fibrous proteins which are elongated and insoluble.
Pronunciation
- /ˈɡlɒbjʊlər ˈproʊtiːn/
Etymology
The term "globular" is derived from the Latin word "globulus", meaning small sphere, while "protein" comes from the Greek word "proteios", meaning primary or holding the first place.
Structure
Globular proteins have a compact, spherical shape and are more complex than fibrous proteins. Their structure is made up of several polypeptide chains which fold into a complex tertiary structure, often with a hollow core. This structure is maintained by various types of protein interactions, including hydrogen bonds, disulfide bonds, and hydrophobic interactions.
Function
Globular proteins play a variety of roles in biological processes. They can act as enzymes, hormones, antibodies, and transporters. For example, hemoglobin is a globular protein that transports oxygen in the blood.
Related Terms
External links
- Medical encyclopedia article on Globular protein
- Wikipedia's article - Globular protein
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