Anti-Lipocalin 2/LCN2 Antibody Picoband® Fluoro594 Conjugated
Product Specifications
Background
Europhile gelatinase-associated lipocalin (NGAL) is a protein that in humans is encoded by the LCN2 gene. The binding of lipocalin-2 to bacterial siderophores is important in the innate immune response to bacterial infection. Upon encountering invading bacteria the toll-like receptors on immune cells stimulate the synthesis and secretion of lipocalin-2. Secreted lipocalin-2 then limits bacterial growth by sequestering iron-containing siderophores. Lipocalin-2 also functions as a growth factor.
Synonyms
Neutrophil gelatinase-associated lipocalin; NGAL; Alpha-2-microglobulin-related protein; Alpha-2U globulin-related protein; Lipocalin-2; Siderocalin LCN2; p25; Lcn2
Gene Name
Lcn2
Gene ID
170496
UniProt
P30152
Host
Rabbit
Reactivity
Human, Mouse, Rat
Cross Reactivity
No cross-reactivity with other proteins
Immunogen
E. coli-derived rat Lipocalin 2 recombinant protein (Position: Q21-N198) . Rat Lipocalin 2 shares 64.4 % and 81.1 % amino acid (aa) sequence identity with human and mouse Lipocalin 2, respectively.
Clonality
Polyclonal
Tissue Specificity
Detected in lung, spleen, uterus, vagina and epididymis. .
Applications
Flow Cytometry
Field of Research
Immunoglobulins, Immunology
Purification
Immunogen affinity purified.
Form
Liquid
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 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 (By similarity) . .
References & Citations
1. Cowland JB, Borregaard N (October 1997) . Molecular characterization and pattern of tissue expression of the gene for neutrophil gelatinase-associated lipocalin from humans. Genomics 45 (1) : 17–23. 2. Chan P, Simon-Chazottes D, Mattei MG, Guenet JL, Salier JP (September 1994) . Comparative mapping of lipocalin genes in human and mouse: the four genes for complement C8 gamma chain, prostaglandin-D-synthase, oncogene-24p3, and progestagen-associated endometrial protein map to HSA9 and MMU2. Genomics 23 (1) : 145–50. 3. Flo TH, Smith KD, Sato S, Rodriguez DJ, Holmes MA, Strong RK, Akira S, Aderem A (December 2004) . Lipocalin 2 mediates an innate immune response to bacterial infection by sequestrating iron. Nature 432 (7019) : 917–21. 4. Kjeldsen L, Johnsen AH, Sengeløv H, Borregaard N (May 1993) . Isolation and primary structure of NGAL, a novel protein associated with human neutrophil gelatinase. J. Biol. Chem. 268 (14) : 10425–32. 5. Nelson AM, Zhao W, Gilliland KL, Zaenglein AL, Liu W, Thiboutot DM (April 2008) . 6. Schmidt-Ott KM, Mori K, Li JY, Kalandadze A, Cohen DJ, Devarajan P, Barasch J (February 2007) . Dual action of neutrophil gelatinase-associated lipocalin. J. Am. Soc. Nephrol. 18 (2) : 407–13.
Storage Conditions
At -20 ̊C for one year from date of receipt. Avoid repeated freezing and thawing. Protect from light.
Calculated Molecular Weight
22476 MW
Specificity
No cross reactivity with other proteins.
Applications Notes
6
Gene Name Synonym
Neutrophil gelatinase-associated lipocalin
Subcellular Location
Secreted . Upon binding to the SLC22A17 (24p3R) receptor, it is internalized. .
Sequence Similarities
Belongs to the KIN17 family.
Protein Name
Neutrophil gelatinase-associated lipocalin
Isotype
Rabbit IgG
Contents
Each vial contains 50% glycerol, 0.9% NaCl, 0.2% Na2HPO4, 0.02% NaN3.
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