CD42b

Formalin-fixed, paraffin embedded tissue block or cell block, or 1 unstained charged slide for each test requested plus 3-4 additional unstained slides cut at 4 microns. Adequate space on each slide for control tissue is required.

This is a send out test.

CD42b, also known as platelet glycoprotein Ib,is a cell surface and transmembrane glycoprotein, expression of which commences somewhat later in megakaryocytic development compared to CD61. CD42b is also expressed byplatelets. A subset of cases of Bernard-Soulier syndrome involve congenital deficiency of CD42b.