Human Lipocalin-2/NGAL ELISA Kit | LCN2 elisa kit

Human Lipocalin-2/NGAL PicoKine ELISA Kit

Cat. Num. AAA175829

• Gene Names: LCN2; 24p3; MSFI; NGAL
• Reactivity: Human
• Synonyms: Lipocalin-2/NGAL; Human Lipocalin-2/NGAL PicoKine ELISA Kit; Neutrophil gelatinase-associated lipocalin; lipocalin 2; 24p3; 25 kDa alpha-2-microglobulin-related subunit of MMP-9; HNL; Lcn2; Lipocalin 2; Lipocalin-2; Migration stimulating factor inhibitor; MSFI; NGAL; NGAL_HUMAN; Oncogene 24p3; p25; Siderocalin; LCN2 elisa kit

• Reactivity: Human
• Specificity: Natural and recombinant human NGAL
• Sequence Length: 198

• Samples: Cell culture supernates, serum, plasma(heparin), saliva and urine.
• Assay Type: Sandwich
• Detection Range: 156pg/ml_10000pg
• Sensitivity: < 10pg/ml
• Intra-assay Precision: Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision.
• Inter-assay Precision: Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision.
• Preparation and Storage: Store at 4 degree C for 6 months, at -20 degree C for 12 months. Avoid multiple freeze-thaw cycles (Shipped with wet ice.)

Typical Testing Data/Standard Curve (for reference only)

(Human Lipocalin-2/NGAL PicoKine ELISA Kit standard curve )

Related Product Information for LCN2 elisa kit

Principle of the Assay: The human NGAL ELISA Kit was based on standard sandwich enz.yme-linked immune-sorbent assay technology. A monoclonal antibody from mouse specific for NGAL has been preco~rled onto 96-well plates. Standards (Expression system for standard: NSO, Immunogen sequence: Q21-G198) and test samples are added to the wells, a biotinylated detection polyclonal antibody from goat specific for NGAL is added subsequently and then followed by washing with PBS or TBS buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with PBS or TBS buffer. HRP substrate TMB was used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the human NGAL amount of sample captured in plate.

Background/Introduction: 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 functio:l 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.

NCBI and Uniprot Product Information

• NCBI GI #: 1171700
• NCBI GeneID: 3934
• UniProt Accession #: P80188; P30150; Q5SYV9; Q5SYW0; Q6FGL5; Q92683; A6NII8; B4DWV4; B7ZAA2
• Molecular Weight: 22,457 Da
• NCBI Official Full Name: Neutrophil gelatinase-associated lipocalin
• NCBI Official Synonym Full Names: lipocalin 2
• NCBI Official Symbol: LCN2
• NCBI Official Synonym Symbols: 24p3; MSFI; NGAL
• NCBI Protein Information: neutrophil gelatinase-associated lipocalin; p25; lipocalin-2; oncogene 24p3; siderocalin LCN2; migration-stimulating factor inhibitor; 25 kDa alpha-2-microglobulin-related subunit of MMP-9
• UniProt Protein Name: Neutrophil gelatinase-associated lipocalin
• Protein Family: Neutrophil gelatinase-associated lipocalin
• UniProt Gene Name: LCN2
• UniProt Synonym Gene Names: HNL; NGAL; NGAL
• UniProt Entry Name: NGAL_HUMAN

Uniprot Description

LCN2: 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 internalized 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. Belongs to the calycin superfamily. Lipocalin family. 2 isoforms of the human protein are produced by alternative splicing.

Protein type: Secreted, signal peptide; Secreted

Chromosomal Location of Human Ortholog: 9q34

Cellular Component: extracellular space; extracellular region; cytosol

Molecular Function: protein homodimerization activity; protease binding; transporter activity; iron ion binding

Biological Process: response to drug; cellular response to nutrient levels; cellular iron ion homeostasis; response to virus; siderophore transport; positive regulation of cell projection organization and biogenesis; innate immune response; ion transport; response to herbicide; transmembrane transport