Human Cystatin D/CST5 ELISA Kit PicoKine®

Mfr.No.

EK1964

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.	0.013	0.063	0.113	0.208	0.361	0.713	1.211	2.038

Description

Human Cystatin D/CST5 ELISA Kit PicoKine® (96 Tests). Quantitate Human CST5 in cell culture supeatants, serum and plasma (heparin, EDTA) , saliva and urine. 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

Cystatin-D; Cystatin-5; CST5

Immunogen

Expression system for standard: E.coli; Immunogen sequence: G21-V142

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 Cystatin D/CST5

Subcellular Localization

Secreted.

Sample Type

Cell culture supeatants, Serum, Plasma, Saliva, Urine

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)	30	215	456	31	287	532
Standard deviation	1.26	11.40	25.99	1.92	16.65	33.52
CV (%)	4.2%	5.3%	5.7%	6.2%	5.8%	6.3%

Protein Function

Cysteine proteinase inhibitor that possibly plays a protective role against proteinases present in the oral cavity. The order of preference for inhibition is cathepsin S > cathepsin H > cathepsin L > cathepsin B.

Background

Cystatin-D is a protein that in humans is encoded by the CST5 gene. It is mapped to 20p11.21. The cystatin superfamily encompasses proteins that contain multiple cystatin-like sequences. Some of the members are active cysteine protease inhibitors, while others have lost or perhaps never acquired this inhibitory activity. There are three inhibitory families in the superfamily, including the type 1 cystatins (stefins), type 2 cystatins and the kininogens. The type 2 cystatin proteins are a class of cysteine proteinase inhibitors found in a variety of human fluids and secretions. The cystatin locus on chromosome 20 contains the majority of the type 2 cystatin genes and pseudogenes. This gene is located in the cystatin locus and encodes a protein found in saliva and tears. The encoded protein may play a protective role against proteinases present in the oral cavity.

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	30	31	27	27	28	1.78	6.3%
Sample 2	215	218	202	231	216	10.30	4.7%
Sample 3	456	461	435	518	467	30.74	6.5%

*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	1473
Gene Name	CST5
UniProt ID	P28325
Tissue Specificity	Expressed in submandibular and sublingual saliva but not in parotid saliva. Expressed in parotid gland but not in seminal vesicle, prostate, epididymis, testis, ovary, placenta, thyroid, gastric corpus, small intestine, liver, or gall bladder tissue.

Applications	ELISA
Research Area	Proteolysis/Ubiquitin

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.)

Have you used this product?

Rate it now..!!

SKU	Supplier No.	Size	Your price	Quantity
BHE21001471	EK1964	96 wells/kit	$499		Add to Cart

Human Cystatin D/CST5 ELISA Kit PicoKine®

Contact us to order

Tel

Email

Contact us to order

Tel

Email

Reviews of Human Cystatin D/CST5 ELISA Kit PicoKine®

Rate it now..!!