Human CK-19/KRT19(Cytokeratin 19) ELISA Kit

Mfr.No.

E-EL-H2075

Antigen

CK-19/KRT19

Alternative Names

CK19 ; K19 ; Keratin 19 ; K1CS ; Keratin ; type I cytoskeletal 19 ; 40-kDa Keratin Intermediate Filament

Background

This kit uses Sandwich-ELISA as the method. The micro ELISA plate provided in this kit has been pre-coated with an antibody specific to Mouse PIAS1 .Standards or samples are added to the appropriate micro ELISA plate wells and combined with the specific antibody. Then a biotinylated detection antibody specific for Mouse PIAS1 and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well successively and incubated. Free components are washed away. The substrate solution is added to each well. Only those wells that contain Mouse PIAS1 ,biotinylated detection antibody and Avidin-HRP conjugate will appear fluorescence. The OD value is measured spectrophotometrically at a wavelength of 450nm. The OD value is positively associated with the concentration of Mouse PIAS1 . The concentration of Mouse PIAS1 in the samples can be calculated by comparing the OD of the samples to the standard curve.

Description

As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.

Concentration(pg/mL)	O.D	Average	Corrected
4000	2.3 2.332	2.316	2.23
2000	1.626 1.636	1.631	1.545
1000	0.951 0.929	0.9399999999999999	0.854
500	0.494 0.516	0.505	0.419
250	0.28 0.264	0.272	0.186
125	0.193 0.169	0.181	0.095
62.50	0.133 0.137	0.135	0.049
0	0.083 0.089	0.08599999999999999	--

Reactivity

Human

Specificity

This kit recognizes Human CK-19/KRT19 in samples. No significant cross-reactivity or interference between Human CK-19/KRT19 and analogues was observed.

Assay Time

4.5h

Components

An unopened kit can be stored at 4℃ for 1 month. If the kit is not used within 1 month, store the items separately according to the following conditions once the kit is received.

Item	Specifications	Storage
Micro ELISA Plate(Dismountable)	8 wells ×12 strips	-20℃, 6 months
Reference Standard	2 vials
Concentrated Biotinylated Detection Ab (100×)	1 vial, 120 μL
Concentrated HRP Conjugate (100×)	1 vial, 120 μL	-20℃(shading light), 6 months
Reference Standard & Sample Diluent	1 vial, 20 mL	4℃, 6 months
Biotinylated Detection Ab Diluent	1 vial, 14 mL
HRP Conjugate Diluent	1 vial, 14 mL
Concentrated Wash Buffer (25×)	1 vial, 30 mL
Substrate Reagent	1 vial, 10 mL	4℃(shading light)
Stop Solution	1 vial, 10 mL	4℃
Plate Sealer	5 pieces
Product Description	1 copy
Certificate of Analysis	1 copy

Detection Method

Colormetric

Detection Range

62.5--4000pg/mL

Linearity

Samples were spiked with high concentrations of Human CK-19/KRT19 and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.

		Serum (n=5)	EDTA plasma (n=5)	Cell culture media (n=5)
1:2	Range (%)	91-103	92-105	98-113
1:2	Average (%)	98	98	104
1:4	Range (%)	89-104	84-95	82-97
1:4	Average (%)	95	88	88
1:8	Range (%)	88-102	85-97	86-97
1:8	Average (%)	93	90	92
1:16	Range (%)	89-100	85-99	83-96
1:16	Average (%)	95	91	89

Method Type

Sandwich

Precision

Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level Human CK-19/KRT19 were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level Human CK-19/KRT19 were tested on 3 different plates, 20 replicates in each plate.

	Intra-assay Precision			Inter-assay Precision
Sample	1	2	3	1	2	3
n	20	20	20	20	20	20
Mean (pg/mL)	209.92	451.67	1959.03	220.56	450.39	1983.49
Standard	deviation	13.35	20.33	73.86	12.99	25.18	69.22
C V (%)	6.36	4.50	3.77	5.89	5.59	3.49

Recovery

The recovery of Human CK-19/KRT19 spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

Sample Type	Range (%)	Average Recovery (%)
Serum (n=5)	89-103	94
EDTA plasma (n=5)	86-100	92
Cell culture media (n=5)	92-104	98

Sample Type

Serum, Plasma, Cell supernatant

Sensitivity

37.5 pg/mL

Manual

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SKU	Supplier No.	Size	Your price
BHE10304332	E-EL-H2075	96T	$609	Add to Cart
BHE10304332	E-EL-H2075	96T*5	$2740.50	Add to Cart
BHE10304332	E-EL-H2075	96T*10	$5176.50	Add to Cart
BHE10304332	E-EL-H2075	48T	$487.20	Add to Cart

Human CK-19/KRT19(Cytokeratin 19) ELISA Kit

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