Abbreviation
Recombinant Human LCN2 protein (Active)
Purity
>95% as determined by SDS-PAGE.
Endotoxin
Less than 1.0 EU/μg as determined by LAL method.
Activity
Fully biologically active when compared to standard. The ED50 as determined by a cell proliferation assay using human TF-1 cells is less than 0.5 ng/ml, corresponding to a specific activity of >2.0x106 IU/mg.
Alternative Names
24p3; 25 kDa alpha 2 microglobulin related subunit of MMP9; 25 kDa alpha-2-microglobulin-related subunit of MMP-9; Alpha 2 microglobulin related protein; HGNC:6526; HNL; Lcn 2; Lcn2; Lipocalin-2; Migration stimulating factor inhibitor; MSFI; Neutrophil gelatinase associated lipocalin; Neutrophil gelatinase associated lipocalin precursor; Neutrophil gelatinase-associated lipocalin; NGAL; NGAL_HUMAN; Oncogene 24p3; Oncogenic lipocalin 24p3; p25; Siderocalin; siderocalin LCN2; SV40 induced 24P3 protein; Uterocalin
Species
Homo sapiens (Human)
Expression Region
21-198aa
Target Protein Sequence
QDSTSDLIPA PPLSKVPLQQ NFQDNQFQGK WYVVGLAGNA ILREDKDPQK MYATIYELKE DKSYNVTSVL FRKKKCDYWI RTFVPGCQPG EFTLGNIKSY PGLTSYLVRV VSTNYNQHAM VFFKKVSQNR EYFKITLYGR TKELTSELKE NFIRFSKSLG LPENHIVFPV PIDQCIDG
Note: The complete
sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is
translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application,
please explicitly request the full and complete sequence of this protein before ordering.
Protein Length
Full Length of Mature Protein
Tag Info
Tag-Free
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Buffer
0.2 μm filtered PBS, pH 7.4, with 0.05 % Tween-20,lyophilized
Storage
Store at -20°C/-81°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Lead Time
5-10 business days
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Shelf Life
The shelf life is related to many factors, storage state, storage temperature and the stability of the product itself. Generally, the shelf life of lyophilized form is 6 months at -20°C/-80°C from the date of receipt.
Datasheet & COA
Please contact us to get it.
Description
Neutrophil gelatinase-associated lipocalin (LCN2/NGAL) plays a critical role in iron trafficking and innate immunity through its siderophore-binding activity, making it a key target in cancer biology and inflammatory signaling research. This tag-free recombinant human LCN2, covering the full-length mature protein (aa 21–198), demonstrates exceptional biological potency with an ED50 below 0.5 ng/ml in TF-1 cell proliferation assays, corresponding to a specific activity exceeding 2.0 × 10⁶ IU/mg—confirming native-like conformational integrity essential for ligand-binding and cargo-release assays. The verified bioactivity supports use in siderophore-interaction studies, drug-protein binding experiments, antibody development, and deployment as a quantitative ELISA standard. Purity exceeding 95% by SDS-PAGE combined with endotoxin levels below 1.0 EU/μg satisfies the criteria typical for cell-based functional assays and structural or biophysical characterization where both contaminant proteins and microbial artifacts must be minimized.