One of the glycoproteins present in the cell surface membrane of human cells is called ICAM-1.
ICAM-1 is a cell adhesion molecule and it is also used by the common cold virus to attach to human cells.
Which statements are true about ICAM-1?
1 A drug binding to ICAM-1 to block the common cold virus could stop cells attaching to each other.
2 Part of the ICAM-1 structure must be complementary to proteins in the coat of the common cold virus.
3 The ICAM-1 structure must have hydrophobic parts to stabilise it within the cell membrane.
1, 2 and 3
2 )
1 and 2 only
3 )
1 and 3 only
4 )
2 and 3 only
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