Product Details

Purity

>98% 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 biological activity determined by a chemotaxis bioassay using human peripheral T lymphocytes is in a concentration range of 1.0-100 ng/ml.

Target Names

Il16

Uniprot No.

O54824

Research Area

Immunology

Alternative Names

Il16; Pro-interleukin-16 [Cleaved into: Interleukin-16; IL-16; Lymphocyte chemoattractant factor; LCF)]

Species

Mus musculus (Mouse)

Source

E.coli

Expression Region

1205-1322aa

Complete Sequence

SAASASAASD ISVESKEATV CTVTLEKTSA GLGFSLEGGK GSLHGDKPLT INRIFKGTEQ GEMVQPGDEI LQLAGTAVQG LTRFEAWNVI KALPDGPVTI VIRRTSLQCK QTTASADS

Mol. Weight

12.2 kDa

Protein Length

Full Length of Mature Protein

Tag Info

Tag-Free

Form

Lyophilized powder

Buffer

Lyophilized from a 0.2 µm filtered PBS, pH 7.4

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Troubleshooting and FAQs

Protein FAQs

Storage Condition

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shelf Life

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Lead Time

5-10 business days

Notes

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Datasheet & COA

Please contact us to get it.

Description

Interleukin-16, a CD4⁺ T cell chemoattractant cytokine, plays a central role in immune cell recruitment and inflammatory signaling, making validated recombinant forms essential for mechanistic immunology research. This tag-free mouse IL-16 encompasses the full mature protein sequence (residues 1205–1322 of pro-IL-16), and its biological activity has been confirmed via a chemotaxis bioassay using human peripheral T lymphocytes at concentrations of 1.0–100 ng/ml, providing a suitable basis for T cell migration assays, CD4-dependent signaling pathway studies involving MAPK and NF-κB activation, and in vivo mouse models of inflammation. Endotoxin levels below 1.0 EU/μg minimize LPS-driven artifacts that can confound immune cell functional readouts, which is critical for chemotaxis, proliferation, and activation assays using primary lymphocytes or PBMCs. Purity exceeding 98% by SDS-PAGE, combined with this stringent endotoxin control, also supports use as a reference standard in cytokine detection assays and as a positive control for antibody validation by ELISA or Western blot.

Target Background

Function

Interleukin-16 stimulates a migratory response in CD4+ lymphocytes, monocytes, and eosinophils. Primes CD4+ T-cells for IL-2 and IL-15 responsiveness. Also induces T-lymphocyte expression of interleukin 2 receptor. Ligand for CD4.; Isoform 1 may act as a scaffolding protein that anchors ion channels in the membrane.; Isoform 2 is involved in cell cycle progression in T-cells. Appears to be involved in transcriptional regulation of SKP2 and is probably part of a transcriptional repression complex on the core promoter of the SKP2 gene. May act as a scaffold for GABPB1 (the DNA-binding subunit the GABP transcription factor complex) and HDAC3 thus maintaining transcriptional repression and blocking cell cycle progression in resting T-cells.

Gene References into Functions

The production of IL-16 contributed to lung damage as neutralization of IL-16 enhanced S. aureus clearance and resulted in diminished lung pathology in S. aureus pneumonia. PMID: 24736233
Data indicate that knockdown of translocator protein TSPO by siRNAhad showed no effect on the productions of TNF-alpha, IL-1beta and IL-6 in lipopolysaccharide (LPS)-stimulated BV-2 microglia cells. PMID: 25200148
Interleukin-16 promotes cardiac fibrosis and myocardial stiffening in heart failure with preserved ejection fraction. PMID: 23894370
Data show overexpression of pro-IL-16 impaired resting B cell proliferation mediated through regulating nuclear factor (NF)-kappaB activation, and siRNA knock-down of pro-IL-16 expression decreased the level of p27(kip) and increased the level of Skp2. PMID: 23297678
We determined that ovalbumin (OVA)-sensitized mice have an increase in systemic tumor necrosis factor-alpha levels, and that serum or BAL fluid stimulation of bronchial epithelial cells results in production of IL-16 PMID: 12594062
IL-16 induces a greater migratory response in the Th1 cell subset than in the Th2 subset. PMID: 14607889
interleukin-16 and its precursor have roles in T lymphocyte activation and growth [review] PMID: 15253385
IL-16 precursor mRNA and protein expression are dynamically regulated during CD4+ T cell activation by a calcineurin-dependent mechanism; pro-IL-16 may influence T cell cycle regulation, although not in a dominant manner. PMID: 15728482
Caspase-3 mediated production of IL-16 by infiltrating CD4+ T cells, contributes to ongoing neuroinflammation by chemoattraction of additional waves of CD4+ T cells. PMID: 16271292
After femoral artery ligation, CD8+ T cells infiltrate the site of collateral vessel growth and recruit CD4+ mononuclear cells through the expression of IL-16 PMID: 16380545
Inactivation of IL-16 by antibody therapy or IL-16 deficiency prevented ischemia-reperfusion injury of the kidney, as shown by reduced levels of serum creatinine or blood urea nitrogen. PMID: 18004294
Generation of bleomycin-induced lung fibrosis is independent of IL-16 PMID: 19232499
CD4-positive T cells are specifically recruited to the lung in a dendritic cell-independent but IL-16-dependent process and diminish neutrophil recruitment through increased IL-10 production. PMID: 19641139

Hide All

Subcellular Location

Secreted.; [Isoform 1]: Cytoplasm. Note=Colocalizes with GRIN2C in neuronal cell bodies and neurites.; [Isoform 2]: Cytoplasm. Nucleus.

Tissue Specificity

Isoform 1 is expressed in neurons of the cerebellum and hippocampus. Isoform 2 is expressed in thymus, spleen and lung.

Database Links

KEGG: mmu:16170

STRING: 10090.ENSMUSP00000001792

UniGene: Mm.10137

Code	CSB-AP003381MO
Abbreviation	Recombinant Mouse Il16 protein (Active)
MSDS	MSDS Datasheet
Size	$354
	Order now
Image
Have Questions?	Leave a Message or Start an on-line Chat

Recombinant Mouse Pro-interleukin-16 [Cleaved into: Interleukin-16 protein (Il16) (Active)

Product Details

Related Products

Customer Reviews and Q&A

Target Background

×CloseMessage