Scientific background: |
TFPI(Tissue factor pathway inhibitor) also known as EPI, LACI, TFI and TFPT1 is a single-chain
polypeptide which can reversibly inhibit Factor Xa (Xa) and Thrombin (Factor IIa). While Xa is inhibited,
the Xa-TFPI complex can subsequently also inhibit the FVIIa-tissue factor complex. TFPI contributes
significantly to the inhibition of Xa in vivo, despite being present at concentrations of only 2.5 nM. The
gene for TFPI is located on chromosome 2q31-q32.1, and has nine exons which span 70 kb. TFPI has a
relative molecular mass of 34,000 to 40,000 depending on the degree of proteolysis of the C-terminal
region.
REFERENCE |
References: |
1. Enjyoji, K.-I., Emi, M., Mukai, T., Imada, M., Leppert, M. L., Lalouel, J. M., Kato, H.Human tissue
factor pathway inhibitor (TFPI) gene: complete genomic structure and localization on the genetic map of
chromosome 2q.Genomics 17: 423-428, 1993.
2. Kleesiek, K., Schmidt, M., Gotting, C., Brinkmann, T., Prohaska, W.A first mutation in the human
tissue factor pathway inhibitor gene encoding (P151L) TFPI. (Letter)Blood 92: 3976-3977, 1998.
3. Lupu, C., Zhu, H., Popescu, N. I., Wren, J. D., Lupu, F.Novel protein ADTRP regulates TFPI
expression and function in human endothelial cells in normal conditions and in response to
androgen.Blood 118: 4463-4471, 2011. |