Simple Plex Human Flt-3 Ligand/FLT3L Assay Cartridge
Simple Plex Human Flt-3 Ligand/FLT3L Assay Cartridge Summary
*The Sample Volume represented is based on the amount of sample incorporated into the reaction after taking into account the assay’s minimum required dilution for a given matrix. Serial dilution may be necessary to achieve some of the final sample volumes represented.
Product Summary
Precision
Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma
| Intra-Assay Precision | Inter-Assay Precision | |||
|---|---|---|---|---|
| Sample | 1 | 2 | 1 | 2 |
| n | 16 | 16 | 44 | 42 |
| Mean (pg/mL) | 22.9 | 1163 | 22.3 | 1069 |
| Standard Deviation | 0.6 | 60.6 | 2.16 | 95.1 |
| CV% | 2.7 | 5.2 | 9.7 | 8.9 |
Recovery
Recovery at three different spiked concentrations within the range of the assay was evaluated.
| Sample Type | Average % Recovery | Range % |
|---|---|---|
| Cell Culture Media (n=2) | 111 | 110-112 |
Linearity
Scientific Data
Product Datasheets
Preparation and Storage
Background: Flt-3 Ligand/FLT3L
Flt-3 Ligand, also known as FL, is an alpha-helical cytokine that promotes the differentiation of multiple hematopoietic cell lineages. Mature human Flt-3 Ligand consists of a 158 amino acid (aa) extracellular domain (ECD) with a cytokine-like domain and a juxtamembrane tether region, a 21 aa transmembrane segment, and a 30 aa cytoplasmic tail. Within the ECD, human Flt-3 Ligand shares 71% and 65% aa sequence identity with mouse and rat Flt-3 Ligand, respectively. Human and mouse Flt-3 Ligand show cross-species activity. Flt-3 Ligand is expressed as a noncovalently-linked dimer by T cells and bone marrow and thymic fibroblasts. Each 36 kDa chain carries approximately 12 kDa of N- and O-linked carbohydrates. Alternate splicing and proteolytic cleavage of the transmembrane form can generate a soluble 30 kDa fragment that includes the cytokine domain. Alternate splicing of human Flt-3 Ligand also generates membrane-associated isoforms that contain either a truncated cytoplasmic tail or an 85 aa substitution following the cytokine domain. Both transmembrane and soluble Flt-3 Ligand signal through the tyrosine kinase receptor Flt-3/Flk-2. Flt-3 Ligand induces the expansion of monocytes and immature dendritic cells as well as early B cell lineage differentiation. It synergizes with IL-3, GM-CSF, and SCF to promote the mobilization and myeloid differentiation of hematopoietic stem cells. It cooperates with IL-2, -6, -7, and -15 to induce NK cell development and with IL-3, -7, and -11 to induce terminal B cell maturation. Animal studies also show Flt-3 Ligand to reduce the severity of experimentally induced allergic inflammation.
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