Here's a bit more about it:

* Capsids are the protective outer shell of viruses. They're made up of many protein subunits called protomers.

* The shape of the capsid can vary, and it's often used to classify viruses (e.g., helical, icosahedral).

* The capsid plays a crucial role in:

* Protecting the virus's genetic material (DNA or RNA)

* Attaching to host cells

* Entering the host cell

Let me know if you have any other questions!