Product Details

Purity

>96% 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 monocytes is in a concentration of 10-100 ng/ml.

Target Names

CCL13

Uniprot No.

Q99616

Research Area

Immunology

Alternative Names

C-C motif chemokine 13; CCL13; CCL13_HUMAN; Chemokine (C C motif) ligand 13; CK beta 10; CK-beta-10; CKb10; MCP-4; MGC17134; Monocyte chemoattractant protein 4; Monocyte chemotactic protein 4; NCC 1; NCC-1; NCC1; New CC chemokine 1; SCYA13; SCYL1; short chain; Small inducible cytokine A13 precursor; Small inducible cytokine subfamily A (Cys Cys) member 13; Small-inducible cytokine A13

Species

Homo sapiens (Human)

Source

E.coli

Expression Region

24-98aa

Complete Sequence

QPDALNVPST CCFTFSSKKI SLQRLKSYVI TTSRCPQKAV IFRTKLGKEI CADPKEKWVQ NYMKHLGRKA HTLKT

Mol. Weight

8.6 kDa

Protein Length

Partial

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

CCL13 (MCP-4) plays a non-redundant role in monocyte and eosinophil recruitment through CCR2 and CCR3 signaling, making it a critical reagent for dissecting chemokine-driven immune cell trafficking. This tag-free recombinant protein, spanning the mature sequence (residues 24–98) expressed in *E. coli*, demonstrates confirmed chemotactic activity on primary human monocytes at 10–100 ng/ml, providing a suitable basis for Transwell migration assays, CCR2/CCR3 receptor activation studies, and downstream MAPK or NF-κB signaling pathway analysis. The endotoxin level of <1.0 EU/μg satisfies the stringent criteria needed to prevent LPS-driven artifacts in sensitive monocyte and dendritic cell functional assays, while also supporting use in *in vivo* inflammation models where endotoxin contamination could confound results. Purity exceeding 96% by SDS-PAGE further supports its application as a reliable reference standard in chemokine detection assays or as a coating antigen for antibody development and ELISA validation.

Target Background

Function

Chemotactic factor that attracts monocytes, lymphocytes, basophils and eosinophils, but not neutrophils. Signals through CCR2B and CCR3 receptors. Plays a role in the accumulation of leukocytes at both sides of allergic and non-allergic inflammation. May be involved in the recruitment of monocytes into the arterial wall during the disease process of atherosclerosis. May play a role in the monocyte attraction in tissues chronically exposed to exogenous pathogens.

Gene References into Functions

CCL13 expression is significantly upregulated in human masticatory mucosa during wound healing PMID: 28005267
CCL13 levels in serum and synovial fluid may serve as a biomarker for the progression of osteoarthritis. PMID: 25654294
CCL13 is an antimicrobial protein with bacteriocidal activity against E. coli. PMID: 12949249
Data suggest that CCL13 binds to several chemokine receptors (CCR1, CCR2, and CCR3), allowing CCL13 to elicit different effects on target cells of immune system. CCL13 is involved in pathology of chronic inflammatory/autoimmune diseases. [REVIEW] PMID: 23846739
MCP-4 and hsCRP may be the markers linking chronic inflammation in obesity and periodontal disease. PMID: 23375121
E(2) has adverse effects on the pathogenesis of RA as a result of unregulated cell death, increased TNF-alpha-induced MMP-3 production, and CCL13 overproduction, subsequently resulting in the disease progression of RA. PMID: 22393877
Findings suggest that the pro-atherogenic effects of CCR2 may not be restricted to interaction with MCP-1, but could also involve activation by MCP-4, being an inflammatory link between platelet and monocyte activation. PMID: 20139115
Data suggest that the monocyte chemoattractant protein-4 core promoter YY-1 binding motif is functional, and modulates the transcriptional regulation of the MCP-4 gene. PMID: 12805085
The study was undertaken to understand the relationship between the functional proteomics of receptor-Ck and developmental stages of human atherosclerotic aortic wall. PMID: 14560935
MCP-4 may be a critical molecule that links obesity and chronic inflammation. PMID: 16855189
The Th2 cytokine IL-4 preferentially stimulated MCP-4 expression. PMID: 17541284
interferon-gamma with IL-1beta/TNF-alpha activates the production of CCL13 from chondrocytes in RA joints; secreted CCL13 enhances fibroblast-like synoviocyte proliferation by activating the extracellular signal-regulated MAP kinases cascade PMID: 17824960
TLR2, 3, 4 and 5 ligands, but not TLR7/8 or 9 ligands, synergized with IL-4 to induce the production of MCP-4 in nasal polyp fibroblasts. PMID: 17851891
CCL13 and HSPC159 mRNA expressions in PBMC are up-regulated specifically in MCNS patients during the nephrosis phase. PMID: 18219197
Oncostatin M can strongly up-regulate the expression of CCL13, a chemokine recently identified in the synovial fluid of patients with rheumatoid arthritis. PMID: 19565514

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Subcellular Location

Secreted.

Protein Families

Intercrine beta (chemokine CC) family

Tissue Specificity

Widely expressed. Found in small intestine, thymus, colon, lung, trachea, stomach and lymph node. Low levels seen in the pulmonary artery smooth muscle cells.

Database Links

HGNC: 10611

OMIM: 601391

KEGG: hsa:6357

STRING: 9606.ENSP00000225844

UniGene: Hs.414629

Code	CSB-AP000911HU
Abbreviation	Recombinant Human CCL13 protein, partial (Active)
MSDS	MSDS Datasheet
Size	$142
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Recombinant Human C-C motif chemokine 13 protein (CCL13), partial (Active)

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