Human ICOS ELISA Kit PicoKine®

Mfr.No.

EK1111

Sensitivity

<2 pg/ml

Detection Range

62.5 pg/ml - 4,000 pg/ml

Reactivity

Human

Sample Volume

Concentration (pg/ml)	0	62.5	125	250	500	1000	2000	4000
O.D.	0.171	0.258	0.284	0.406	0.607	1.057	1.493	2.055

Description

Human ICOS ELISA Kit PicoKine® (96 Tests). Quantitate Human ICOS in cell culture supeatants, serum and plasma (heparin, EDTA). Sensitivity: 2pg/ml. The brand Picokine indicates this is a premium quality ELISA kit. Each Picokine kit delivers precise quantification, high sensitivity, and excellent reproducibility. Only our most reliable and effective kits qualify as Picokine, guaranteeing top-tier results for your assays.

Alternative Names

Inducible T-cell costimulator; Activation-inducible lymphocyte immunomediatory molecule; CD278; ICOS; AILIM

Immunogen

Expression system for standard: NS0; Immunogen sequence: E21-F141

Kit Components

Description Quantity
Pre-coated 96-well strip microplate 1
Standard 2 vials
Biotinylated antibody (100x) 100ul
Avidin-Biotin-Peroxidase Complex (100x) 100ul
Sample Diluent 30ml
Antibody Diluent 12ml
Avidin-Biotin-Peroxidase Diluent 12ml
Color Developing Reagent (TMB) 10ml
Stop Solution 10ml
Wash Buffer (25x) 20ml
Adhesive plate sealers 4

Cross Reactivity

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

Specificity

Natural and recombinant human ICOS

Subcellular Localization

Isoform 1: Cell membrane ; Single-pass type I membrane protein .

Sample Type

Cell culture supeatants, Serum, Plasma

Anticoagulant

heparin or EDTA

Precision

	Intra-Assay Precision			Inter-Assay Precision
Sample	1	2	3	1	2	3
n	16	16	16	24	24	24
Mean (pg/ml)	189	561	1066	198	531	1149
Standard deviation	13.41	22.44	52.23	16.83	27.61	58.59
CV (%)	7.1%	4%	4.9%	8.5%	5.2%	5.1%

Protein Function

Enhances all basic T-cell responses to a foreign antigen, namely proliferation, secretion of lymphokines, up- regulation of molecules that mediate cell-cell interaction, and effective help for antibody secretion by B-cells. Essential both for efficient interaction between T and B-cells and for normal antibody responses to T-cell dependent antigens. Does not up- regulate the production of interleukin-2, but superinduces the synthesis of interleukin-10. Prevents the apoptosis of pre- activated T-cells. Plays a critical role in CD40-mediated class switching of immunoglobin isotypes (By similarity).

Background

Inducible T-cell costimulator is an immune checkpoint protein that in humans is encoded by the ICOS gene. The protein encoded by this gene belongs to the CD28 and CTLA-4 cell-surface receptor family. It forms homodimers and plays an important role in cell-cell signaling, immune responses, and regulation of cell proliferation.

Reproducibility

Lots	Lot 1 (pg/ml)	Lot 2 (pg/ml)	Lot 3 (pg/ml)	Lot 4 (pg/ml)	Mean (pg/ml)	Standard Deviation	CV (%)
Sample 1	189	189	191	192	190	1.29	0.6%
Sample 2	561	545	489	526	530	26.84	5%
Sample 3	1066	1100	974	1134	1068	59.62	5.5%

*number of samples for each test n=16.

Notes

Material Required But Not Provided:
Microplate Reader capable of reading absorbance at 450nm.
Incubator.
Automated plate washer .
Pipettes and pipette tips capable of precisely dispensing 0.5 µl through 1 ml volumes of aqueous solutions.
Multichannel pipettes are recommended for large amount of samples.
Deionized or distilled water.
500ml graduated cylinders.
Test tubes for dilution.

Gene ID	29851
Gene Name	ICOS
UniProt ID	Q9Y6W8
Tissue Specificity	Activated T-cells. Highly expressed on tonsillar T-cells, which are closely associated with B-cells in the apical light zone of germinal centers, the site of terminal B- cell maturation. Expressed at lower levels in thymus, lung, lymph node and peripheral blood leukocytes. Expressed in the medulla of fetal and newbo thymus.

Applications	ELISA
Research Area	Adaptive Immunity,Immunology,T Cells

Storage	Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Ships with gel ice, can store for up to 3 days in room temperature. Freeze upon receiving.)

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SKU	Supplier No.	Size	Your price	Quantity
BHE21001301	EK1111	96 wells/kit	$499		Add to Cart

Human ICOS ELISA Kit PicoKine®

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