Maturesu S: A

Once it binds to the specific cell receptor, it changes shape, allowing the virus to enter.

The SU subunit stays closely linked to the TM subunit through noncovalent interactions, and together, they are transported to the cell surface. maturesu s a

Based on the search results, "maturesu s a" likely refers to the of a retrovirus. This is a protein that plays a key role in how viruses bind to cell receptors, essentially acting as the key that unlocks the cell. Once it binds to the specific cell receptor,