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Recombinant Human Exodus-2 (CCL21)

Certificate of Analysis and Data Sheet

Source: E.Coli

Catalog No.
CHM-332

Background:

SLC/CCL21, normally expressed in high endothelial venules and in T cell zones of spleen and lymph nodes, strongly attracts T cells and dendritic cells (DC). Secondary lymphoid tissue chemokine (CCL21/SLC) regulates the homing of naive T cells and dendritic cells that express CC-chemokine receptor 7 (CCR7) from distant sites to lymphoid tissue such as lymph nodes.

Description :

Recombinant Human Exodus-2 is also known as SLC (Secondary Lymphoid-Tissue Chemokine), TCA-4 (T-cell activation-4) , and 6Ckine. Recombinant CCL21 produced in E.Coli as a single, non-glycosylated, polypeptide chain containing 111 amino acids and having a molecular mass of 12219 Dalton. Recombinant CCL-21 is purified by proprietary chromatographic techniques.

Physical Appearance:

Sterile Filtered White lyophilized (freeze-dried) powder.

Formulation:

Lyophilized from a concentrated (1mg/ml) solution in water containing no additives.

Solubility:

It is recommended to reconstitute the lyophilized Exodus-2 in sterile 18MΩ-cm H2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.

Stability:

Lyophilized Exodus-2 although stable at room temperature for 3 weeks, should be stored desiccated below -180C. Upon reconstitution Exodus-2 should be stored at 40C between 2-7 days and for future use below -180C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please avoid freeze-thaw cycles.

Purity:

Greater than 98.0% as determined by:
(a) Analysis by RP-HPLC.
(b) Anion-exchange FPLC.
(c) Analysis by reducing and non-reducing SDS-PAGE Silver Stained gel.

Amino acid sequence:

The sequence of the first five N-terminal amino acids was determined and was found to be, Ser-Asp-Gly-Gly-Ala.

Dimers and aggregates:

Less than 1% as determined by silver-stained SDS-PAGE gel analysis.

Biological Activity:

ProSpec's Recombinant Human Exodus-2 is fully biologically active when compared to standard. The activity is determined by the chemoattract of human PBE (peripheral blood eosinophils) at a concentration between 0.1-10ng/ml.

Endotoxin:

Less than 0.1 ng/ug (IEU/ug) of Exodus-2.

Protein content:

Protein quantitation was carried out by two independent methods:
1. UV spectroscopy at 280 nm.
2. Analysis by RP-HPLC, using a calibrated solution of Exodus-2 as a Reference Standard.

Usage:

Prospec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.


Gene:

Name:CCL21
Synonyms:SCYA21
ORFNames:UNQ784/PRO1600

Protein synonyms/aliases:

Small inducible cytokine A21 precursor (CCL21)
    (Beta chemokine exodus-2)
    (6Ckine)
    (Secondary lymphoid-tissue chemokine)
    (SLC).

Protein Family:

Belongs to the intercrine beta (chemokine CC) family.

Protein Domains:


Domains:
IPR001811   Small chemokine, interleukin-8-like

Related proteins:

Recombinant Human Eotaxin(CCL11)
Recombinant Murine Eotaxin(CCL11)
Recombinant Human Monocyte Chemotactic Protein-4 (CCL13)
Recombinant Human HCC-1 (CCL14)
Recombinant Human Macrophage Inflammatory protein-4 (CCL18)
Recombinant Human Macrophage Inflammatory protein-3 beta (CCL19)
Recombinant Human I-309 (CCL1)
Recombinant Human Monocyte Chemotactic Protein-1/MCAF (CCL2)
Recombinant Murine Monocyte Chemotactic Protein-1 (CCL2)
Recombinant Rat Monocyte Chemotactic Protein-1 (CCL2)
Recombinant Human Macrophage Inflammatory protein-1 alpha (CCL3)
Recombinant Murine Macrophage Inflammatory protein-1 alpha (CCL3)
Recombinant Human Macrophage Inflammatory protein-1 beta (CCL4)
Recombinant Murine Macrophage Inflammatory protein-1 beta (CCL4)
Recombinant Human Rantes (CCL5)
Recombinant Murine C-10 (CCL6)
Recombinant Human Monocyte Chemotactic Protein-3 (CCL7)
Recombinant Murine Monocyte Chemotactic Protein-3 (CCL7)
Recombinant Human Monocyte Chemotactic Protein-2 (CCL8)

Protein links:

Recombinant Human Exodus-2 (CCL21) protein domain

Recombinant Human Exodus-2 (CCL21) protein family


Precursor- Protein structure and amino acid sequence:


Latest Publications:

1. Therapeutic effect of alpha-galactosylceramide-loaded dendritic cells genetically engineered to express SLC/CCL21 along with tumor antigen against peritoneally disseminated tumor cells.
Cancer Sci 2005 Dec;96(12):889-96
2. Role of CXC chemokine ligand 13, CC chemokine ligand (CCL) 19, and CCL21 in the organization and function of nasal-associated lymphoid tissue.
J Immunol 2005 Oct 15;175(8):4904-13
3. Enhancement of immunity by a DNA melanoma vaccine against TRP2 with CCL21 as an adjuvant.
Mol Ther 2006 Jan;13(1):194-202
4. Vesicle-mediated transport and release of CCL21 in endangered neurons: a possible explanation for microglia activation remote from a primary lesion.
J Neurosci 2005 Aug 17;25(33):7548-57
5. CXCL9 antagonism further extends prolonged cardiac allograft survival in CCL19/CCL21-deficient mice.
Am J Transplant 2005 Sep;5(9):2104-13
6. Evidence for an enhanced adhesion of DC to fibronectin and a role of CCL19 and CCL21 in the accumulation of DC around the pre-diabetic islets in NOD mice.
Eur J Immunol 2005 Aug;35(8):2386-96

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中華民國95年06月06日更新