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SRP4928

Sigma-Aldrich

Lipocalin-2 human

recombinant, expressed in E. coli, ≥95% (SDS-PAGE), ≥95% (HPLC)

Synonym(s):

25 kDa α-2-microglobulin-related subunit of MMP-9, Lipocalin-2, NGAL, Neutrophil gelatinase-associated lipocalin, Oncogene 24p3, p25

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About This Item

UNSPSC Code:
12352200
NACRES:
NA.32

biological source

human

recombinant

expressed in E. coli

Assay

≥95% (HPLC)
≥95% (SDS-PAGE)

form

lyophilized

mol wt

~20 kDa

packaging

pkg of 50 μg

technique(s)

activity assay: suitable

impurities

endotoxin, tested

NCBI accession no.

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... LCN2(3934)

General description

Research area: Cell signaling. The gene LCN2 (lipocalin 2) is mapped to human chromosome 9q34. LCN2, a secreted glycoprotein, is an adipokine. It is expressed by many cells, such as respiratory and intestinal epithelial cells, endothelial cells, renal tubular cells, and cardiomyocytes. LCN2 belongs to the lipocalin family. LCN2 consists of the lipid binding domain that binds to small hydrophobic molecules and the ligand binding cavity that binds to bacterial and mammalian proteins called siderophores.

Application

LCN2 (lipocalin 2)-human has been used in the cell proliferation assay.It has also been used in conductometric immunoassay in renal carcinoma cells.

Biochem/physiol Actions

LCN2 (lipocalin 2) potentially connects obesity and its related adipose inflammation. LCN2 has also been implicated in a variety of processes including cell differentiation, tumorigenesis, and apoptosis. It is an early marker of acute kidney injury, cardiovascular diseases, lupus nephritis, and intestinal inflammation. LCN2 is upregulated in humans with heart failure. It can associate with MMP9 (matrix metalloproteinase-9) and controls its stability. Changes in the expression of LCN2 are associated with many cancers, including breast, colorectal, pancreatic, ovarian, gastric, thyroid, ovarian, bladder, and kidney cancers.LCN2 acts as a pleiotropicmolecule and plays a role in several pathophysiological and physiologicalactivities including immune response, inflammation, metabolic homeostasis, andinfection.

Physical form

Lyophilized with no additives.

Reconstitution

Centrifuge the vial prior to opening. Avoid freeze-thaw cycles.
Reconstitute in water to a concentration 0.1-1 mg/mL. The solution can then be further diluted to other aqueous solutions.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Increased adipose tissue expression of lipocalin-2 in obesity is related to inflammation and matrix metalloproteinase-2 and metalloproteinase-9 activities in humans.
Catalan V
Journal of Molecular Medicine, 87, 803-813 (2009)
Guoliang Wang et al.
International journal of biological sciences, 10(7), 798-806 (2014-08-01)
A key feature of pulmonary hypertension (PH) is the remodeling of small pulmonary arteries due to abnormal pulmonary artery smooth muscle cell (PASMC) proliferation and resistance to apoptosis. However, the cellular mechanisms underlying how PASMCs in the pathological condition of
Network based analyses of gene expression profile of LCN2 overexpression in esophageal squamous cell carcinoma.
Wu B
Scientific Reports, 4, doi: 10-doi: 10 (2014)
Plasma levels of neutrophil gelatinase-associated lipocalin in children with heart failure.
Tawfeek MS
Therapeutic Advances in Cardiovascular Disease, 10, 30-36 (2016)
Vanessa Abella et al.
Biomarkers : biochemical indicators of exposure, response, and susceptibility to chemicals, 20(8), 565-571 (2015-12-17)
Lipocalin-2 (LCN2), also known as neutrophil gelatinase-associated lipocalin (NGAL), is a secreted glycoprotein that belongs to a group of transporters of small lipophilic molecules in circulation. LCN2 has been recently characterized as an adipose-derived cytokine. This adipokine is believed to

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