This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Integrins are associated with all of the following except: September 2009 
Select and explain. 
A. Adhesion, B. Arrest, C. Rolling, D. Transmigration of cells
C: Rolling
Answer: C: Rolling 
Explanation: Ans. C: Rolling The integrins are a superfamily of cell adhesion receptors that bind to extracellular matrix ligands, cell-surface ligands, and soluble ligands. Immunologically impoant integrin ligands are the intercellular adhesion molecules (ICAMs), immunoglobulin superfamily members present on inflamed endothelium and antigen-presenting cells. On ligand binding, integrins transduce signals into the cell interior; they can also receive intracellular signals that regulate their ligand-binding affinity