Human Lipocalin-2/NGAL ELISA Kit EZ-Set^TM (DIY Antibody Pairs)

Mfr.No.

EZ0853

Detection Range

156 pg/ml - 10,000 pg/ml

Reactivity

Human

Sample Volume

Concentration (pg/ml)	0	156	312	625	1250	2500	5000	10000
O.D.	0.04	0.317	0.479	0.78	1.049	1.588	1.877	2.09

Description

Human Lipocalin-2/NGAL ELISA Kit EZ-Set™ (DIY Antibody Pairs) (antibody pairs and standards for assay development). Quantitate Human LCN2 in cell culture supeatants, serum, plasma (heparin) , saliva and urine.

Alternative Names

Neutrophil gelatinase-associated lipocalin;NGAL;25 kDa alpha-2-microglobulin-related subunit of MMP-9;Lipocalin-2;Oncogene 24p3;Siderocalin LCN2;p25;LCN2;HNL, NGAL;

Molecular Weight

22588 MW

Immunogen

Expression system for standard: NS0; Immunogen sequence: Q21-G198

Kit Components

Description
Capture Antibody
Detection Antibody
Avidin-Biotin-Peroxidase Complex (ABC)
Lyophilized Standard

Cross Reactivity

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

Specificity

Natural and recombinant human Lipocalin-2/NGAL

Subcellular Localization

Secreted . Upon binding to the SLC22A17 (24p3R) receptor, it is intealized.

Sample Type

Cell culture supeatants, Serum, Plasma, Saliva, Urine

Precision

	Intra-Assay Precision			Inter-Assay Precision
Sample	1	2	3	1	2	3
n	16	16	16	24	24	24
Mean (pg/ml)	256	1510	5422	254	1537	5138
Standard deviation	19.2	81.54	281.94	19.05	84.53	323.69
CV (%)	7.5%	5.4%	5.2%	7.5%	5.5%	6.3%

Protein Function

Iron-trafficking protein involved in multiple processes such as apoptosis, innate immunity and renal development. Binds iron through association with 2,5-dihydroxybenzoic acid (2,5- DHBA), a siderophore that shares structural similarities with bacterial enterobactin, and delivers or removes iron from the cell, depending on the context. Iron-bound form (holo-24p3) is intealized following binding to the SLC22A17 (24p3R) receptor, leading to release of iron and subsequent increase of intracellular iron concentration. In contrast, association of the iron-free form (apo-24p3) with the SLC22A17 (24p3R) receptor is followed by association with an intracellular siderophore, iron chelation and iron transfer to the extracellular medium, thereby reducing intracellular iron concentration. Involved in apoptosis due to interleukin-3 (IL3) deprivation: iron-loaded form increases intracellular iron concentration without promoting apoptosis, while iron-free form decreases intracellular iron levels, inducing expression of the proapoptotic protein BCL2L11/BIM, resulting in apoptosis. Involved in innate immunity, possibly by sequestrating iron, leading to limit bacterial growth. .

Background

Lipocalin-2 (LCN2), also known as NGAL, is a protein associated with neutrophil gelatinase.1 The LCN2 gene is located at 9q34 and contains 7 exons.2 The 25-kD LCN2 protein is believed to bind small lipophilic substances such as bacteria-derived lipopolysaccharide (LPS) and formylpeptides and may function as a modulator of inflammation. NGAL tightly binds bacterial catecholate-type ferric siderophores through a cyclically permuted, hybrid electrostatic/cation-pi interaction and is a potent bacteriostatic agent in iron-limiting conditions.3 The primary LCN2 transcript is 3,696 nucleotides long, and the processed transcript is 809 nucleotides long.4 LCN2 expression in adult bone marrow, uterus, prostate, salivary gland, stomach, appendix, colon, trachea, and lung, and in fetal spleen and lung.The standard product used in this kit is recombinant human NGAL, consisting of 178 amino acids with the molecular mass of 22KDa.

Notes

Material Required But Not Provided:
1. Microplate reader in standard size.
2. Automated plate washer.
3. Incubator.
4. Adjustable pipettes and pipette tips. Multichannel pipettes are recommended in the condition of large amount of samples in the detection.
5. Clean tubes and Eppendorf tubes.
6. 96 well microplate
7. Plate Sealers.
8. Capture Antibody Diluent: PBS.
9. Reagent Diluent: 1% BSA in PBS, pH 7.2-7.4, 0.2 µm filtered.
10. Substrate Solution: Tetramethylbenzidine
11. Stop Solution: 2 N H2SO4
12. Wash Buffer . Recipes:
PBS: 8g NaCl, 0.2g KCl, 1.15g Na2HPO4, 0.2g KH2PO4, adjust the total volume to 1 L with distilled water, pH 7.2-7.4, 0.2 µm filtered.
PBS-T: 0.1% Tween® 20 in PBS, pH 7.2-7.4.
*Item 6 12 are included in the EZ Set Accessory Kit

Gene ID	3934
Gene Name	LCN2
UniProt ID	P80188
Protein Name	Neutrophil gelatinase-associated lipocalin
Tissue Specificity	Expressed in bone marrow and in tissues that are prone to exposure to microorganism. High expression is found in bone marrow as well as in uterus, prostate, salivary gland, stomach, appendix, colon, trachea and lung. Not found in the small intestine or peripheral blood leukocytes. .
Sequence	Belongs to the calycin superfamily. Lipocalin family.

Applications	ELISA
Research Area	Immunoglobulins,Immunology

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
BHE21000001	EZ0853	5 plates/kit	$500		Add to Cart

Human Lipocalin-2/NGAL ELISA Kit EZ-Set^TM (DIY Antibody Pairs)

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