Human IL-31 PicoKine ELISA Kit

Brand

Boster

short description

For quantitative detection of human IL-31 in cell culture supernates, cell lysates, tissue homogenates, serum and plasma (heparin, EDTA).

spezie

Human

Cross Reaction

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

detection target

Human IL-31
Protein name: Interleukin-31
Gene Full Name: interleukin 31
abbreviation: IL31
Background: Interleukin-31, also known as IL-31 is a protein that in humans is encoded by the IL31 gene. This gene is mapped to 12q24.31. IL31, which is made principally by activated Th2-type T cells, interacts with a heterodimeric receptor consisting of IL31RA and OSMR that is constitutively expressed on epithelial cells and keratinocytes. IL31 may be involved in the promotion of allergic skin disorders and in regulating other allergic diseases, such as asthma. IL31 may function in skin immunity.
ID:Q6EBC2
ID:386653

alias

IL-31|IL31|IL31_HUMAN|Interleukin-31

Origin

Nativ and recombinant human IL-31

Antibodies

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

Immunogene

E.coli, S24-T164

sensitivity

<10pg/ml

detection range

62.5pg/ml-4000pg/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)|496|1361|2665|582|1532|3031
Standard deviation|17.36|64|154.6|30.85|85.8|203.1
CV(%)|3.5|4.7|5.8|5.3|5.6|6.7

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 IL-31 ELISA Kit was based on standard sandwich enzyme-linked immune-sorbent assay technology. A monoclonal antibody from mouse specific for IL-31 has been precoated onto 96-well plates. Standards(E.coli, S24-T164) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for IL-31 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 IL-31 amount of sample captured in plate.

Assay Procedure Step 1

Aliquot 0.1ml per well of the 4000pg/ml, 2000pg/ml, 1000pg/ml, 500pg/ml, 250pg/ml, 125pg/ml, 62.5pg/ml human IL-31 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 or plasma(heparin, EDTA) to each empty well. See ﾓSample Dilution Guidelineﾔ above for details. It is recommended that each human IL-31 standard solution and each sample be measured in duplicate.

tipical result

Concentration(pg/ml)|0|62.5|125|250|500|1000|2000|4000 O.D.|0.052|0.084|0.116|0.178|0.330|0.671|1.348|2.462

Kit Content

Catalog number|Description|Quantity
-|96-well plate precoated with anti- human IL-31 antibody|1
ST0000-10|Lyophilized recombinant human IL-31 standard|10ng/tubex2
AR1107|Biotinylated anti- human IL-31 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