A protein called GEF-H1 is known to control immune responses to certain viruses such as influenza A. GEF-H1 is best classified as which kind of protein?
a structural protein
an antibody
an enzyme
a messenger protein
Antibodies are protein molecules that are produced by the B-cells of the immune system in response to foreign bodies, known as antigens, such as pathogens like bacteria and viruses.
Antibodies target specific of foreign bodies, identifies them by recognizing specific part of these foreign bodies and neutralizes them using various mechanisms.
