Recombinant Mouse TIGIT Protein (Fc Tag)

• Background:

  T cell immunoreceptor with Ig and ITIM domains (TIGIT), also called WUCAM, VSIG9 and Vstm3, is a member of the CD28 family within the Ig superfamily of proteins. TIGIT contains an immunoglobulin variable domain, a transmembrane domain and an immunoreceptor tyrosine-based inhibitory motif (ITIM), and is expressed on regulatory, memory, activated T cells and NK cells. TIGIT binds to CD155 (PVR) that appear on dendritic cells (DC), macrophages and endothelium with high affinity, and CD112 (PVRL2) with lower affinity, but not CD113 (PVRL3) . TIGIT-Fc fusion protein could interact with PVR on DC and enhance the secretion of IL-10, but inhibit the macrophage activation. Mice lacking TIGIT show increased T cell responses and susceptibility to autoimmune challenges, while knockdown of TIGIT with siRNA in human memory T cells did not affect T cell responses.

• Abbreviation:

  TIGIT

• Synonyms:

  T-cell immunoreceptor with Ig and ITIM domains; Tigit; VSIG9; VSTM3

• Accession Number:

  NP_001139797

• Expression System:

  HEK293 Cells

• Tag:

  C-Fc

• Sequence:

  Gly26-Thr143

• Endotoxin:

  < 1.0 EU per μg of the protein as determined by the LAL method.

• Purity:

  > 95 % as determined by reducing SDS-PAGE.

• Bioactivity:

  Not validated for activity

• Reconstitution:

  Please refer to the printed manual for detailed information.

• Shipping Conditions:

  This product is provided as lyophilized powder which is shipped with ice packs.

• Storage Conditions:

  Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

• Calculated Molecular Weight:

  40.1 kDa

• Observed Molecular Weight:

  50 - 60 kDa

• Formulation:

  Lyophilized from a 0.2 µm filtered solution of PBS, pH 7.4.
  Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.
  Please refer to the specific buffer information in the printed manual.

• Species:

  Mouse