Recombinant Human C-C motif chemokine 21 (CCL21)

Code CSB-YP004785HU
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Source Yeast
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Code CSB-EP004785HU-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP004785HU
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Source Baculovirus
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Code CSB-MP004785HU
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Source Mammalian cell
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Product Details

>85% (SDS-PAGE)
Target Names
Uniprot No.
Alternative Names
6Ckine; Beta chemokine exodus 2; Beta-chemokine exodus-2; C C motif chemokine ligand 21; C-C motif chemokine 21; CCL21; CCL21_HUMAN; Chemokine (C-C motif) ligand 21; Chemokine CC motif ligand 21; CKb9; ECL; Efficient Chemoattractant for Lymphocytes; SCYA21; Secondary lymphoid tissue chemokine; Secondary lymphoid-tissue chemokine; SLC; Small inducible cytokine A21 ; Small inducible cytokine subfamily A (Cys-Cys); member 21; Small-inducible cytokine A21; TCA4; UNQ784/PRO1600
Homo sapiens (Human)
Expression Region
Target Protein Sequence
Protein Length
Full Length of Mature Protein
Tag Info
The following tags are available.
N-terminal His-tagged
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.
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
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℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and 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
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
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.
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Please contact us to get it.

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Target Background

Inhibits hemopoiesis and stimulates chemotaxis. Chemotactic in vitro for thymocytes and activated T-cells, but not for B-cells, macrophages, or neutrophils. Shows preferential activity towards naive T-cells. May play a role in mediating homing of lymphocytes to secondary lymphoid organs. Binds to atypical chemokine receptor ACKR4 and mediates the recruitment of beta-arrestin (ARRB1/2) to ACKR4.
Gene References into Functions
  1. High CCL21 expression is associated with urinary bladder cancer metastasis. PMID: 28534984
  2. Significant associations between the CCL21 rs2812378 G;A polymorphism and rheumatoid arthritis risk were observed in the total population, as well as in subgroup Caucasian population. PMID: 28799100
  3. Low CCL21 expression was a potential independent adverse prognostic biomarker for overall survival and progression-free survival for metastatic renal cell carcinoma patients treated with targeted therapy. PMID: 27783999
  4. these results demonstrated that CCL21/CCR7 may activate EMT in lung cancer cells via the ERK1/2 signaling pathway. PMID: 28487957
  5. CCL21/CCR7 interaction was shown to allow NK cell adhesion to endothelial cells (ECs) and its reduction by hypoxia. PMID: 28416768
  6. These data show that CCR7-CCL19/CCL21 axis facilitates retention CD4(+) T lymphocytes at the site of collateral artery remodeling, which is essential for effective arteriogenesis. PMID: 28275068
  7. CCL21 correlated significantly with Bladder Pain Syndrome: gene expression in bladder biopsies of patients with Bladder Pain Syndrome was increased in the patients and correlated with clinical profiles. PMID: 26965559
  8. CCL21/IL21-armed oncolytic adenovirus enhances antitumor activity against TERT-positive tumor cells. PMID: 27157859
  9. plasmin cleaves surface-bound CCL21 to release the C-terminal peptide responsible for CCL21 binding to glycosaminoglycans on the extracellular matrix and cell surfaces, thereby generating the soluble form. PMID: 27301418
  10. the white pulp regions of ME7-infected spleens were smaller, and contained markedly diminished T zones, as compared to control spleens. Although lymphoid tissue inducer cells were not affected, the expression of both CCL19 and CCL21 was decreased. PMID: 27021907
  11. Taken together, these results suggest that SERCA2 contributes to the migration of CCL21-activated Dendritic Cells as an important feature of the adaptive immune response and provide novel insights regarding the role of SERCA2 in Dendritic Cells functions. PMID: 27538371
  12. An expanded lymphatic network is capable of enhanced chemoattractant CCL21 production, and lymphangiogenesis will facilitate initial lymph formation favoring increased clearance of fluid in situations of augmented fluid filtration. PMID: 28935759
  13. Results provide evidence for an association between an increase level of CCL21 and IP-10 in the blood and pulmonary involvement in systemic lupus erythematosus patients. PMID: 27614982
  14. Gata1-KO(DC) DCs have reduced polysialic acid levels on their surface, which is a known determinant for the proper migration of DCs toward CCL21. PMID: 27815426
  15. CCL21 and CXCL13 levels are increased in the minor salivary glands of patients with Sjogren's syndrome. PMID: 27782867
  16. CCL21/CCR7 interaction contributes to the time-dependent proliferation of PTC cells by upregulating cyclin A, cyclin B1 and cyclin-dependent kinase 1 (CDK1) expression via the extracellular signal-regulated kinase (ERK) pathway associated with iodine. PMID: 27574129
  17. CCL21 can facilitate chemoresistance and stem cell property of colorectal cancer cells via the upregulation of P-gp, Bmi-1, Nanog, and OCT-4 through AKT/GSK-3beta/Snail signals. PMID: 27057280
  18. CCL21/CCR7 induce VEGF-D up-regulation and promote lymphangiogenesis via ERK/Akt pathway in lung cancer. PMID: 26884842
  19. Our findings suggested that MUC1 plays an important role in CCL21-CCR7-induced lymphatic metastasis and may serve as a therapeutic target in esophageal squamous cell carcinoma . PMID: 26667143
  20. TGF-beta1 promoted CCL21 expression in lymphatic endothelial cells. CCL21 acted in a paracrine fashion to mediate chemotactic migration of EMT cells toward lymphatic endothelial cells. PMID: 25961925
  21. increased expression in mononuclear inflammatory cells isolated from the brain during active stage of experimental autoimmune encephalomyelitis PMID: 25957582
  22. The chemotactic interaction between CCR7 and its ligand, CCL21, may be a critical event during progression in pancreatic cancer PMID: 21594558
  23. CCL21 gene SNP (rs951005) might confer genetic predisposition to polymyositis patients or such patients with interstitial lung disease in a Chinese Han population. PMID: 26320593
  24. over-expression of CCL21 could increased the expressions of antigen presentation-related genes in CK8/18 TECs in MG patients PMID: 26146068
  25. Priming by CCL21 restricts lateral mobility of the adhesion receptor LFA-1 and restores adhesion to ICAM-1 nanoaggregates on human mature dendritic cells. PMID: 24945611
  26. CCL21/CCR7 pathway activates signallings to up-regulate Slug pathway, leading to the occurrence of epithelial-mesenchymal transition process in human chondrosarcoma PMID: 25556164
  27. These results reveal that CCR7 and VEGF-C display a significant crosstalk and suggest a novel role of the CCL21/CCR7 chemokine axis in the promotion of breast cancer-induced lymphangiogenesis. PMID: 25744065
  28. CCL21 promotes the metastasis of pancreatic cancer via epithelial-mesenchymal transition. PMID: 25575049
  29. Modulation of the chemokines CCL19 and CCL21 represents a potent immunoregulatory treatment approach, and thus represents a novel therapeutic target to stabilize atherosclerotic lesions. PMID: 25473269
  30. CCL21/CCR7 interactions might be involved in the response to pressure overload secondary to aortic stenosis. PMID: 25398010
  31. CCL21 and CCL19 were significantly increased in serum from ankylosing spondylitis patients. PMID: 25260647
  32. overexpressed in myasthenia gravis thymus PMID: 24393484
  33. Studied expression of CCR7 and EMT markers in the primary breast carcinoma tissues from patients who underwent radical mastectomy. and investigated whether CCL21/CCR7 induces EMT process during mediating cancer cell invasion or migration in vitro. PMID: 25142946
  34. CCL21 was shown to be involved in the induction of ulcerative colitis. Suppression of CCL21 expression decreased damage induced from ulcerative colitis, indicating that CCL21 targeted therapy might be an effective treatment for this disease PMID: 24841666
  35. CCL21 rs2812377 was associated with coronary artery disease in a Chinese Han population. PMID: 24990231
  36. CCL21 is an antimicrobial protein with bacteriocidal activity against E. coli and S. aureus. PMID: 12949249
  37. Although CCL21 levels are elevated, no CCL21-positive cells are observed in patients with eosinophilic pneumonia. PMID: 24111618
  38. CCL21 expression was increased in hyperplastic myasthenia gravis thymuses. PMID: 24556356
  39. these data suggested an important role of the lymphoid-endothelium-associated chemokine, CCL21, on dendritic cells in the induction of cytotoxic T lymphocytes responses. PMID: 24383579
  40. Elevated serum CCL21 correlates with opsoclonus-myoclonus syndrome severity and duration in pediatric opsoclonus-myoclonus syndrome. PMID: 23764550
  41. CCL21 expression was found to be an independent prognostic biomarker for CRC. PMID: 23760102
  42. In amnion epithelial cells exposed to zinc ferrite nanoparticles there is an increase in CCL21 activation; in situ nanoparticles induce oxidative stress, alterations in cellular membrane and DNA strand breaks. PMID: 24035972
  43. Results suggest that the CCL21/CCR7 signaling pathway is involved in renal fibrosis in kidney transplant patients. PMID: 23498789
  44. CCL21 attenuates HSV-induced inflammation through up-regulation of CD8+ memory cells. PMID: 22884357
  45. CCL21 is a mediator of rheumatoid arthritis angiogenesis. PMID: 22392503
  46. oxLDL induces an in vitro downregulation of CCR7 and CCL21, which may play a role in the reduction of dendritic cell migration from the plaques PMID: 22619482
  47. High serum levels of CCL21 are independently associated with mortality in chronic and acute post-myocardial infarction heart failure. PMID: 22427939
  48. CCL21/CCR7 prevents apoptosis by upregulating the expression of bcl-2 and by downregulating the expression of bax and caspase-3 potentially via the ERK pathway in non-small cell lung cancer cell lines PMID: 22438908
  49. CCL21 was more localized to chondrocytes and meniscal cells during the development of osteoarthritis in mice. PMID: 21972019
  50. CCL21 structure solved by nuclear magnetic resonance (NMR) contains a conserved chemokine domain followed by an extended, unstructured C-terminus that is not typical of most other chemokines. PMID: 22221265

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Subcellular Location
Protein Families
Intercrine beta (chemokine CC) family
Tissue Specificity
Highly expressed in high endothelial venules of lymph nodes, spleen and appendix. Intermediate levels found in small intestine, thyroid gland and trachea. Low level expression in thymus, bone marrow, liver, and pancreas. Also found in tonsil, fetal heart
Database Links

HGNC: 10620

OMIM: 602737

KEGG: hsa:6366

STRING: 9606.ENSP00000259607

UniGene: Hs.57907

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