Human Cathepsin E PicoKine® Quick ELISA Kit

Mfr.No.

FEK1306

Sensitivity

<10 pg/ml

Detection Range

15.6 pg/ml - 1,000 pg/ml

Reactivity

Human

Sample Volume

Concentration (pg/ml)	0	15.6	31.2	62.5	125	250	500	1000
O.D.	0.047	0.077	0.135	0.247	0.480	0.937	1.655	2.014

Description

Human Cathepsin E PicoKine® Quick ELISA Kit (90 minutes, 96 Tests). Quantitate Human CTSE in cell culture supeatants, cell lysates, serum and plasma (heparin, EDTA). Sensitivity: 10pg/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

Cathepsin E;3.4.23.34;Cathepsin E form I;Cathepsin E form II;CTSE;

Molecular Weight

43312 MW

Immunogen

Expression system for standard: NS0; Immunogen sequence: Q18-P396

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 Cathepsin E

Sample Type

Cell culture supeatants, Cell lysates, 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)	27	63	416	30	82	435
Standard deviation	1.30	3.59	19.14	1.53	4.84	27.84
CV (%)	4.8%	5.7%	4.6%	5.1%	5.9%	6.4%

Background

Cathepsin E is a protein that in humans is encoded by the CTSE gene. It is mapped to 1q32.1. The protein encoded by this gene is a gastric aspartyl protease that functions as a disulfide-linked homodimer. This protease, which is a member of the peptidase C1 family, has a specificity similar to that of pepsin A and cathepsin D. It is an intracellular proteinase that does not appear to be involved in the digestion of dietary protein and is found in highest concentration in the surface of epithelial mucus-producing cells of the stomach. Cathepsin E is the first aspartic proteinase expressed in the fetal stomach and is found in more than half of gastric cancers. It appears, therefore, to be an oncofetal antigen, and it also has an important role in immune responses.

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	27	24	25	26	25	1.11	4.4%
Sample 2	63	61	69	71	66	4.12	6.2%
Sample 3	416	414	399	412	410	6.64	1.6%

*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	1510
Gene Name	CTSE
UniProt ID	P14091
Protein Name	Cathepsin E

Applications	ELISA

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
BHE21001850	FEK1306	96 wells/kit	$499		Add to Cart

Human Cathepsin E PicoKine® Quick ELISA Kit

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