Recombinant Human TIM-1/KIM-1/HAVCR His-tag Protein, CF
Recombinant Human TIM-1/KIM-1/HAVCR His-tag Protein, CF Summary
Product Specifications
anti-CD3 and Recombinant Human TIM‑1/KIM‑1/HAVCR.
The ED50 for this effect is 0.2-0.8 µg/mL.
Optimal dilutions should be determined by each laboratory for each application.
Ser21-Thr288, with a C-terminal 6-His tag
Analysis
Product Datasheets
Carrier Free
CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.
In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.
1750-TM
| Formulation | Lyophilized from a 0.2 μm filtered solution in PBS. |
| Reconstitution | Reconstitute at 100 μg/mL in sterile PBS. |
| Shipping | The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. |
| Stability & Storage: | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Scientific Data
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Recombinant Human TIM-1/KIM-1/HAVCR (Catalog # 1750-TM) inhibits anti-CD3-induced proliferation of stimulated human T cells. Human T lymphocytes cultured for 72 hours with PHA were incubated for an additional 3 days in 96 well plates coated with 500 ng/mL anti-CD3 and Recombinant Human TIM‑1/KIM‑1/HAVCR. The ED50 for this effect is 0.2-0.8 µg/mL.
Reconstitution Calculator
Background: TIM-1/KIM-1/HAVCR
TIM-1 (T cell-immunoglobulin-mucin; also KIM-1 and HAVcr-1) is a 100 kDa, type I transmembrane glycoprotein member of the TIM family of immunoglobulin superfamily molecules (1-3). This gene family is involved in the regulation of Th1 and Th2-cell-mediated immunity. Human TIM-1 is synthesized as a 359 amino acid (aa) precursor that contains a 20 aa signal sequence, a 270 aa extracellular domain (ECD), a 21 aa transmembrane segment and a 48 aa cytoplasmic domain (4-6). The ECD contains one V-type Ig-like domain and a mucin region characterized by multiple PTTTTL motifs. The mucin region undergoes extensive O-linked glycosylation. The TIM-1 gene is highly polymorphic and undergoes alternate splicing (1). For instance, the presence of a six aa sequence (MTTTVP) at position # 137 of the mature molecule is associated with protection from atopy in people with a history of hepatitis A (7, 8). There are two cytoplasmic alternate splice forms of TIM-1. One is a long (359 aa) kidney form termed TIM-1b, and one is a short (334 aa) liver form termed TIM-1a. Both are identical through the first 323 aa of their precursors. TIM-1b contains a tyrosine phosphorylation motif that is not present in 1a (6). TIM-1 is also known to circulate as a soluble form. Constitutive cleavage by an undefined MMP (possibly ADAM33) releases an 85-90 kDa soluble molecule (6). The ECD of human TIM-1 is 50% and 43% aa identical to mouse and canine TIM-1 ECD, respectively. The only two reported ligands for TIM-1 are TIM-4 and the hepatitis A virus (4, 9). However, others are believed to exist, and based on the ligand for TIM-3, one may well be an S-type lectin (10). TIM-1 ligation induces T cell proliferation and promotes cytokine production (1, 10).
- Meyers, J.H. et al. (2005) Trends Mol. Med. 11:1471.
- Kuchroo, V.K. et al. (2003) Nat. Rev. Immunol. 3:454.
- Mariat, C. et al. (2005) Phil. Trans. R. Soc. B 360:1681.
- Feigelstock, D. et al. (1998) J. Virol. 72:6621.
- Ichimura, T. et al. (1998) J. Biol. Chem. 273:4135.
- Bailly, V. et al. (2002) J. Biol. Chem. 277:39739.
- Umetsu, D.T. et al. (2005) J. Pediatr. Gastroenterol. Nutr. 40:S43.
- Gao, P-S. et al. (2005) J. Allergy Clin. Immunol. 115:982.
- Zhu, C. et al. (2005) Nat. Immunol. 6:1245.
- Meyers, J.H. et al. (2005) Nat. Immunol. 6:455.
Product Specific Notices
This product is covered by one or more of the following US Patents 7,300,652; 7,041,290; 6,664,385 and other US and foreign patents pending or issued.Citation for Recombinant Human TIM-1/KIM-1/HAVCR His-tag Protein, CF
R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.
1 Citation: Showing 1 - 1
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Broad spectrum activity of a lectin-like bacterial serine protease family on human leukocytes.
Authors: Ayala-Lujan, Jorge Lu, Vijayakumar, Vidhya, Gong, Mei, Smith, Rachel, Santiago, Araceli, Ruiz-Perez, Fernando
PLoS ONE, 2014-09-24;9(9):e107920.
Species: Bacteria, Human
Sample Types: Protein, Whole Cells
Applications: Enzyme Assay, Enzyme Assay Substrate
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