Capsomere

Definition

Capsomeres are the protein subunits that make up the capsid, which is the protective outer shell of a virus. They play a crucial role in the assembly and structural integrity of viruses.

5 Must Know Facts For Your Next Test

1. Capsomeres self-assemble to form the capsid, giving it its shape and stability.
2. The number and arrangement of capsomeres can vary significantly between different types of viruses.
3. Capsomeres are composed of one or more protein molecules known as protomers.
4. They help protect viral genetic material from enzymatic degradation and aid in its delivery into host cells.
5. Interactions between capsomeres often involve non-covalent bonds such as hydrogen bonds and ionic interactions.

Review Questions

Related terms

Capsid:

The protein shell that encloses the genetic material of a virus.

Protomers: Protein molecules that combine to form capsomeres.

Virion:

A complete virus particle that consists of an RNA or DNA core with a protein coat.