Lipocalin-2/NGAL Antibody (220308) [Alexa Fluor® 488]

• Reactivity: Hu
• Applications: ELISA
• Clone: 220308
• Clonality: Monoclonal
• Host: Rat
• Conjugate: Alexa Fluor 488

Lipocalin-2/NGAL Antibody (220308) [Alexa Fluor® 488] Summary

• Immunogen: Mouse myeloma cell line NS0-derived recombinant human Lipocalin-2
  Gln21-Gly198
  Accession # P80188
• Specificity: Detects human Lipocalin-2 in ELISAs. In ELISAs, this antibody does not cross-react with recombinant human (rh) Lipocalin-1, rhMMP-9, rmLipocalin-2, or rrLipocalin-2.
• Isotype: IgG2a
• Clonality: Monoclonal
• Host: Rat
• Purity Statement: Protein A or G purified

Applications/Dilutions

• Dilutions:
  • ELISA

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Lipocalin-2/NGAL Antibody (220308) [Alexa Fluor® 488]

• 24p3
• 25 kDa alpha-2-microglobulin-related subunit of MMP-9
• HNL
• LCN2
• lipocalin 2 (oncogene 24p3)
• lipocalin 2
• Lipocalin2
• Lipocalin-2
• migration-stimulating factor inhibitor
• MSFI
• neutrophil gelatinase-associated lipocalin
• NGAL
• NGALlipocalin-2
• Oncogene 24p3
• p25
• Siderocalin
• Uterocalin

Background

Members of Lipocalin family share a highly conserved fold with an eight-stranded antiparallel beta barrel, and act as a transporters, carrying small molecules to specific cells (1). Lipocalin‑2, also known as Neutrophil Gelatinase-Associated Lipocalin (NGAL), was originally identified as a component of neutrophil granules (2). It is a 25 kDa protein existing in monomeric and homo- and heterodimeric forms, the latter as a dimer with human neutrophil gelatinases (MMP-9) (2). Its expression has been observed in most tissues normally exposed to microorganism, and its synthesis is induced in epithelial cells during inflammation (3). Lipocalin‑2 has been implicated in a variety of processes including cell differentiation, tumorigenesis, and apoptosis (3 - 5). Studies indicate that Lipocalin‑2 binds a bacterial catecholate sidropore bound to ferric ion such as enterobactin with a subnanomolar dissociation constant (K_d = 0.41 nM) (6). The bound ferric enterobactin complex breaks down slowly in a month into dihydroxybenzoyl serine and dihydroxybenzoic acid (DHBA). It also binds to a ferric DHBA complex with much less K_d values (7.9 nM) (6). Secretion of Lipocalin‑2 in immune cells increases by stimulation of Toll-like receptor as an acute phase response to infection. As a result, it acts as a potent bacteriostatic reagent by sequestering iron (7). Moreover, Lipocalin‑2 can alter the invasive and metastatic behavior of Ras-transformed breast cancer cells in vitro and in vivo by reversing epithelial to mesenchymal transition inducing activity of Ras, through restoration of E-cadherin expression, via effects on the Ras-MAPK signaling pathway (8).

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.