Comparison of tissue factor proteins

What is it about?

Tissue factor (TF), an initiator of blood coagulation in vivo , is expressed in a variety of cells. Sufficient natural TF has been isolated to clone and express recombinant proteins ranging from full-length TF to its extracellular domain. Because of the limited availability of natural TF, recombinant proteins have been used as surrogates. Despite the differences in their post-translational modifications, it has been accepted that membrane-anchored recombinant TFs are quite similar to the natural TF. Recent studies, however, have shown that post-translational modifications play an important role in TF-triggered thrombin generation.

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Why is it important?

The basis for the difference between the function of natural and recombinant tissue factor proteins is explained.