SRP6465
Lipocalin-2/LCN2 human
recombinant, expressed in HEK 293 cells, ≥95% (SDS-PAGE)
Synonym(s):
24p3, MSFI, NGAL, Neutrophil Gelatinase-associated Lipocalin, Oncogene 24p3, Siderocalin
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About This Item
NACRES:
NA.32
UNSPSC Code:
12352200
Form:
lyophilized
Assay:
≥95% (SDS-PAGE)
Biological source:
human
Recombinant:
expressed in HEK 293 cells
Mol wt:
calculated mol wt 22 kDa, observed mol wt 23-25 kDa (DTT reduced. Gln 21 is the predicted N-terminal.)
biological source
human
recombinant
expressed in HEK 293 cells
tag
6-His tagged (C-terminus)
assay
≥95% (SDS-PAGE)
form
lyophilized
mol wt
calculated mol wt 22 kDa, observed mol wt 23-25 kDa (DTT reduced. Gln 21 is the predicted N-terminal.)
packaging
pkg of 10 and 50 μg
impurities
<1 EU/μg endotoxin (LAL test)
UniProt accession no.
shipped in
wet ice
storage temp.
−20°C
Gene Information
human ... LCN2(3934)
General description
LCN2 (lipocalin 2), also known as oncogene 24p3, uterocalin, siderocalin, is a 24kDa secreted glycoprotein. It was initially identified in a mouse kidney cell culture infected with simian virus 40 (SV-40). It is a member of the transporter protein family called lipocalins which transport small, hydrophobic ligands.
Lipocalin-2 (LCN2), a secreted glycoprotein, is an adipokine. It is expressed in various cells like respiratory cells, intestinal epithelial cells, endothelial cells, renal tubular cells and cardiomyocytes. The gene LCN2 is located on human chromosome 9q34.
Biochem/physiol Actions
LCN2 (lipocalin 2) functions as a biomarker for various inflammatory disorders as well as cancers. It is also thought to be involved in resistance to drug-mediated apoptosis. It interacts with matrix metalloproteinase-9 and promotes invasion, and it also facilitates tumor growth and is linked with poor prognosis. In lung adenocarcinoma this protein facilitates epithelial to mesenchymal transition (EMT), and hence, promotes metastasis and tumorigenesis, which is repealed by BRM270, an NFκB inhibitor (nuclear factor). Urine levels of LCN2 increase post-nephrotoxic and ischemic insult. In patients undergoing off pump coronary bypass surgery (OPCAB), this protein functions as an early biomarker for acute kidney injury.
Lipocalin-2 (LCN2) has been implicated in a variety of processes including cell differentiation, tumorigenesis, and apoptosis. Polymorphisms in the expression of LCN2 are associated with many cancers such as breast, colorectal, pancreatic, ovarian, gastric, thyroid, ovarian, bladder and kidney cancers.
Physical form
Lyophilized from 0.22 μm filtered solution in PBS, pH 7.4. Normally Mannitol or Trehalose is added as protectants before lyophilization.
Preparation Note
Centrifuge the vial prior to opening. Reconstitute in sterile PBS, pH 7.4 to a concentration of 50 μg/mL. Do not vortex. This solution can be stored at 2-8°C for up to 1 month. For extended storage, it is recommended to store at -20°C.
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
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The pancreatic expression database: recent extensions and updates
Dayem Ullah AZ, et al.
Nursing New Zealand (Wellington, N.Z. : 1995) (2014)
The role of neutrophil gelatinase-associated lipocalin in predicting acute kidney injury in patients undergoing off-pump coronary artery bypass graft: A pilot study.
Jain V et al
Annals of Cardiac Anaesthesia, 19(2), 225-230 (2016)
Network based analyses of gene expression profile of LCN2 overexpression in esophageal squamous cell carcinoma
Wu B, et al.
Scientific Reports (2014)
Epigenetic induction of epithelial to mesenchymal transition by LCN2 mediates metastasis and tumorigenesis, which is abrogated by NF-?B inhibitor BRM270 in a xenograft model of lung adenocarcinoma.
Mongre RK et al
International Journal of Oncology, 48(1), 84-98 (2016)
María Garrido-Arandia et al.
Allergy, 74(11), 2167-2180 (2019-05-17)
Despite all the efforts made up to now, the reasons that facilitate a protein becoming an allergen have not been elucidated yet. Alt a 1 protein is the major fungal allergen responsible for chronic asthma, but little is known about
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