Human CD23/FCER2 PicoKine ELISA Kit

Brand

Boster

short description

For quantitative detection of human CD23 in cell culture supernates, serum, plasma(heparin, EDTA) and urine.

spezie

Human

Cross Reaction

There is no detectable cross-reactivity with other relevant proteins.

detection target

Human CD23
Protein name: Low affinity immunoglobulin epsilon Fc receptor
Gene Full Name: Fc fragment of IgE, low affinity II, receptor for (CD23)
abbreviation: FCER2
Background: CD23, also known as Fc epsilon RII, or Fc?RII, is the "low-affinity" receptor for IgE, an antibody isotype involved in allergy and resistance to parasites, and is important in regulation of IgE levels. There are two forms of CD23: CD23a and CD23b. CD23a is present on follicular B cells, whereas CD23b requires IL-4 to be expressed on T-cells, monocytes, Langerhans cells, eosinophils, and macrophages. As part of a mapping of multiple probes to specific bands on chromosome 19 by fluorescence in situ hybridization, the FCE2 gene was assigned to 19p13.3. CD23(FCE2) is a key molecule for B-cell activation and growth. It is the low-affinity receptor for IgE. The truncated molecule can be secreted, then functioning as a potent mitogenic growth factor.
ID:P06734
ID:2208

alias

BLAST 2|BLAST-2|C-type lectin domain family 4 member J|CD23|CD23 antigen|CD23A|CLEC4J|Fc fragment of IgE low affinity II receptor for (CD23)|Fc-epsilon-RII|FCE2|Fcer2|FCER2_HUMAN|IGEBF|Immunoglobulin E-binding factor|Low affinity immunoglobulin epsilon Fc receptor|Low affinity immunoglobulin epsilon Fc receptor soluble form|Lymphocyte IgE receptor

Origin

Nativ and recombinant human CD23

Antibodies

a monoclonal antibody from mouse|a biotinylated polyclonal antibody from goat

Immunogene

NSO, D48-S321

sensitivity

<10pg/ml

detection range

31.2pg/ml-2000pg/ml

pack size

1x96 Wells

Reproducibility

|Intra-Assay Precision|Inter-Assay Precision
Sample|1|2|3|1|2|3
n|16|16|16|24|24|24
Mean(pg/ml)|132|288|589|139|293|602
Standard deviation|11.35|18.72|43|12.79|24.61|45.75
CV(%)|8.6|6.5|7.3|9.2|8.4|7.6

TMB(tetramethylbenzidine) incubation time

25-30

storage and Stability

Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles(Shipped with wet ice.)

Principle of the Elisa

Boster′s human CD23 ELISA Kit was based on standard sandwich enzyme-linked immune-sorbent assay technology. A monoclonal antibody from mouse specific for CD23 has been precoated onto 96-well plates. Standards(NSO, D48-S321) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for CD23 is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with PBS or TBS buffer. HRP substrate TMB was used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the human CD23 amount of sample captured in plate.

Assay Procedure Step 1

Aliquot 0.1ml per well of the 2000pg/ml,1000pg/ml, 500pg/ml, 250pg/ml, 125pg/ml, 62.5pg/ml, 31.2pg/ml human CD23 standard solutions into the precoated 96-well plate. Add 0.1ml of the sample diluent buffer into the control well (Zero well). Add 0.1ml of each properly diluted sample of human cell culture supernates, serum, plasma( heparin, EDTA) or urine to each empty well. See ﾓSample Dilution Guidelineﾔ above for details. It is recommended that each human CD23 standard solution and each sample be measured in duplicate.

tipical result

Concentration(pg/ml)|0|31.2|62.5|125|250|500|1000|2000 O.D.|0.012|0.052|0.109|0.200|0.403|0.660|1.477|2.083

Kit Content

Catalog number|Description|Quantity
-|96-well plate precoated with anti- human CD23 antibody|1
ST0000-10|Lyophilized recombinant human CD23 standard|10ng/tube�2
AR1107|Biotinylated anti- human CD23 antibody|130µl(dilution 1:100)
AR1103|Avidin-Biotin-Peroxidase Complex (ABC)|130µl(dilution 1:100)
AR1106-1|Sample diluent buffer|30 ml
AR1106-2|Antibody diluent buffer|12ml
AR1106-3|ABC diluent buffer|12ml
AR1104|TMB color developing agent|10ml
AR1105|TMB stop solution|10ml
-|Adhesive cover|4