Neutrophil Gelatinase-Associated Lipocalin Protein | LCN2 protein
Neutrophil Gelatinase-Associated Lipocalin (NGAL), Human
Lipocalin-2 (LCN2), also known as oncogene 24p3 or neutrophil gelatinase-associated lipocalin (NGAL), is a protein that in humans is encoded by the LCN2 gene. NGAL is involved in innate immunity by sequestrating iron that in turn limits bacterial growth. It is expressed in neutrophils and in low levels in the kidney, prostate, and epithelia of the respiratory and alimentary tracts. NGAL is used as a biomarker of kidney injury.
NCBI and Uniprot Product Information
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
Research Articles on LCN2
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Product Notes
The LCN2 lcn2 (Catalog #AAA170382) is a Protein and is intended for research purposes only. The product is available for immediate purchase. It is sometimes possible for the material contained within the vial of "Neutrophil Gelatinase-Associated Lipocalin, Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
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