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Lipocalin-2/NGAL Protein, Rat (sf9, His)

Cat. No.: HY-P74774
COA Handling Instructions

Lipocalin-2/NGAL is a multifaceted iron transporter involved in multiple biological processes, including apoptosis, innate immunity, and kidney development. Lipocalin-2 dynamically affects cellular iron concentration through binding to the siderophore 2,3-dihydroxybenzoate. Lipocalin-2/NGAL Protein, Rat (sf9, His) is the recombinant rat-derived Lipocalin-2/NGAL protein, expressed by Sf9 insect cells , with C-His labeled tag. The total length of Lipocalin-2/NGAL Protein, Rat (sf9, His) is 198 a.a., with molecular weight of ~25 kDa.

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Description

Lipocalin-2/NGAL is a multifaceted iron transporter involved in multiple biological processes, including apoptosis, innate immunity, and kidney development. Lipocalin-2 dynamically affects cellular iron concentration through binding to the siderophore 2,3-dihydroxybenzoate. Lipocalin-2/NGAL Protein, Rat (sf9, His) is the recombinant rat-derived Lipocalin-2/NGAL protein, expressed by Sf9 insect cells , with C-His labeled tag. The total length of Lipocalin-2/NGAL Protein, Rat (sf9, His) is 198 a.a., with molecular weight of ~25 kDa.

Background

Lipocalin-2/NGAL, a multifaceted iron-trafficking protein, participates in diverse biological processes including apoptosis, innate immunity, and renal development. Through its association with the siderophore 2,3-dihydroxybenzoic acid (2,3-DHBA), Lipocalin-2 binds and shuttles iron, dynamically influencing cellular iron concentrations based on the holo-24p3 (iron-bound) or apo-24p3 (iron-free) forms. The interaction with the SLC22A17 receptor mediates iron release or chelation, finely regulating intracellular iron levels. In apoptosis triggered by interleukin-3 (IL3) deprivation, the iron-loaded form prevents apoptosis, while the iron-free form induces BCL2L11/BIM expression, leading to programmed cell death. Lipocalin-2 also contributes to innate immunity by sequestering bacterial siderophores, such as enterobactin, and exhibits the ability to bind siderophores from M. tuberculosis. Structurally, Lipocalin-2 exists as a monomer, homodimer (disulfide-linked), and forms a heterodimer (disulfide-linked) with MMP9. These diverse interactions underscore the versatility of Lipocalin-2 in orchestrating critical cellular and immune responses.

Biological Activity

Measured by its ability to bind Iron(III) dihydroxybenzoic acid [Fe(DHBA)3]. The binding of Fe(DHBA)3 results in the quenching of Trp fluorescence in Lipocalin2 . It binds >1.0 μM of Fe(DHBA)3.

Species

Rat

Source

Sf9 insect cells

Tag

C-His

Accession

P30152 (M1-N198)

Gene ID

170496  [NCBI]

Molecular Construction
N-term
NGAL (M1-N198)
Accession # P30152
His
C-term
Synonyms
Neutrophil gelatinase-associated lipocalin; NGAL; Lipocalin 24p3; p25; LCN2
Molecular Weight

Approximately 25 kDa

Purity

Greater than 95% as determined by reducing SDS-PAGE.

Appearance

Solution

Formulation

Supplied as a 0.2 μm filtered solution of 20 mM Tris, 500 mM NaCl, 10% Glycerol, pH 7.0.

Endotoxin Level

<1 EU/μg, determined by LAL method.

Reconstitution

N/A.

Storage & Stability

Stored at -80°C for 1 year. It is stable at -20°C for 3 months after opening. It is recommended to freeze aliquots at -80°C for extended storage. Avoid repeated freeze-thaw cycles.

Shipping

Shipping with dry ice.

Documentation

Lipocalin-2/NGAL Protein, Rat (sf9, His) Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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Lipocalin-2/NGAL Protein, Rat (sf9, His)
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HY-P74774
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