ELISA: Human Lymphotoxin-alpha/TNF-beta ELISA Kit (Colorimetric) [NBP1-83730] - Representative standard curve for human TNF beta ELISA. Human TNF beta was diluted in serial 2-fold steps inSample Diluent. Do not use this ...read more
Human Lymphotoxin-alpha/TNF-beta ELISA Kit (Colorimetric) Summary
Description
The human Lymphotoxin-alpha/TNF-beta ELISA is an enzyme-linked immunosorbent assay for quantitative detection.
Specificity
The assay detects recombinant, unglycosylated lymphotoxin with the same sensitivity as the natural, glycosylated protein, shows good correlation with the standard cytotoxicity bioassay, and is specific for biologically active TNF beta without TNF alpha cross reactivity.
Standard Curve Range
15.6 - 1,000 pg/mLml
Sensitivity
4.6 pg/mL
Assay Type
Sandwich ELISA
Inter-Assay
CV% < 10.2%
Intra-Assay
CV% < 8.0%
Spike Recovery
The recovery ranged from 87% to 130% with an overall mean recovery of 105%
Assay Buffer Concentrate 20x (PBS with 1% Tween 20 and 10% BSA)
Human Caspase-8 Standard lyophilized, 20.00 ng/ml upon reconstitution
Lysis Buffer 10x
Sample Diluent
Stop Solution (1M Phosphoric acid)
Substrate Solution (tetramethyl-benzidine)
Wash Buffer Concentrate 20x (PBS with 1% Tween 20)
Alternate Names for Human Lymphotoxin-alpha/TNF-beta ELISA Kit (Colorimetric)
LT
LTA
LT-alpha
lymphotoxin alpha (TNF superfamily, member 1)
Lymphotoxin alpha
Lymphotoxinalpha
Lymphotoxin-alpha
tnfb
TNF-beta
TNFBlymphotoxin-alpha
TNFSF1
TNFSF1B
TNFSF1TNF-beta
tumor necrosis factor beta
Tumor necrosis factor ligand superfamily member 1
Background
Tumor Necrosis Factor (TNF) was originally discovered as a serum protein with necrotizing effects on certain transplantable mouse tumors in vivo and cytotoxic effects against some transformed cells in vitro. The TNF family consists of two proteins designated TNF-alpha, also called cachectin, and TNF-beta, also called lymphotoxin. Soluble TNF-beta is a T-cell derived glycoprotein of 25 kD mainly produced by activated lymphocytes. TNF-beta is 28 % structurally homologous with the macrophage produced non-glycoprotein TNF-alpha.TNF-beta is induced in an antigen-specific MHC restricted fashion from class I and class II restricted T cells. Viral infection is also associated with TNF-beta production by lymphoid cells. TNF-beta has several effects on target cells including killing, growth stimulation, induction of adhesion molecule (ICAM-1) expression, and induction of differentiation. The mechanisms of TNF-beta effects involve receptor binding and internalization and several sequelae including changes in prostaglandins and chromosome integrity. TNF-beta participates in tumor immunity, and it has been reported to inhibit carcinogenesis as well as growth of some tumors in vivo.The assay detects recombinant, unglycosylated lymphotoxin with the same sensitivity as the natural, glycosylated protein, shows good correlation with the standard cytotoxicity bioassay, and is specific for biologically active TNF-beta without TNF-alpha cross reactivity.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. ELISA Kits are guaranteed for 6 months from date of receipt.
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