Human CD55 PicoKine® Quick ELISA Kit

Mfr.No.

FEK1948

Sensitivity

<50 pg/ml

Detection Range

312 pg/ml - 20,000 pg/ml

Reactivity

Human

Sample Volume

Concentration(pg/ml)	0	312	625	1,250	2,500	5,000	10,000	20,000
O.D.	0.000	0.071	0.156	0.292	0.517	0.919	1.468	2.039

Description

Human CD55 PicoKine® Quick ELISA Kit (90 minutes, 96 Tests). Quantitate Human CD55 in cell culture supeatants, serum and plasma (heparin, EDTA). Sensitivity: 50 pg/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.

Immunogen

Expression system for standard: NS0; Immunogen sequence: D35-S353

Kit Components

Description Quantity Volume
Anti-tag Pre-coated 96-well Strip Microplate 1 12 strips of 8 wells
Standard 2
Antibody A 1 3ml
Antibody B 1 3ml
Sample Diluent 1 15ml
TBS-T Wash Buffer (25x) 1 12ml
Color Developing Reagent (TMB) 1 10ml
Stop Solution 1 10ml
Adhesive Plate Sealers 2 Piece

Cross Reactivity

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

Specificity

Natural and recombinant Human CD55

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)	552	2036	8896	584	2230	9523
Standard deviation	34.78	126.23	498.18	35.62	102.58	657.09
CV (%)	6.3%	6.2%	5.6%	6.1%	4.6%	6.9%

Background

Complement decay-accelerating factor, also known as CD55 or DAF, is a protein that, in humans, is encoded by the CD55 gene. It is mapped to 1q32.2. This gene encodes a glycoprotein involved in the regulation of the complement cascade. Binding of the encoded protein to complement proteins accelerates their decay, thereby disrupting the cascade and preventing damage to host cells. Antigens present on this protein constitute the Cromer blood group system (CROM). Alteative splicing results in multiple transcript variants. The predominant transcript variant encodes a membrane-bound protein, but alteatively spliced transcripts may produce soluble proteins.

Reproducibility

To assay reproducibility, three samples with differing target protein concentrations were assayed using four different lots.

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	552	524	499	503	520	35.85	6.9%
Sample 2	2036	2144	2161	2019	2103	46.26	2.2%
Sample 3	8896	8941	9041	9569	9112	309.8	3.4%

*number of samples for each test n=16.

Notes

Material Required But Not Provided:
Microplate Reader capable of reading absorbance at 450nm.
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.
Horizontal orbital microplate shaker capable of maintaining a speed of 500 rpm, amplitude 3mm.

Gene ID	1604
Gene Name	CD55
UniProt ID	P08174

Applications	ELISA

Storage	Store at 4°C for 6 months. (Ships with gel ice, can store for up to 3 days in room temperature. Refrigerate upon receipt.)

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SKU	Supplier No.	Size	Your price	Quantity
BHE21000326	FEK1948	96 wells/kit	$499		Add to Cart

Human CD55 PicoKine® Quick ELISA Kit

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Reproducibility

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