Description
Mouse lymphotactin (Lptn) and its human homologue (also named human SCM-1 and ATAC) belong to the C or gamma subfamily of chemokines. The C chemokines lack two (the 1st and 3rd) of the four invariant cysteine residues normally found in the CC and CXC chemokines and have an extended carboxy terminus. Mouse lymphotactin encodes a 114 amino acid residue precursor protein with a 21 amino acid residue predicted signal peptide. The expression of lymphotactin is restricted to activated mouse pro-T cells and to activated, class I MHC restricted T cells. The gene for lymphotactin has been mapped to chromosome 1 in both human and mouse. Recombinant mouse lymphotactin has been shown to have chemotactic activity for lymphocytes, NK cells and mouse splenocytes.
Product Properties
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Synonyms |
ATAC, C motif chemokine 1, Cytokine SCM-1, Lymphotaxin, SCM-1-alpha, Small-inducible cytokine C1 |
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Accession |
P47993 |
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GeneID |
16963 |
|
Source |
E.coli-derived Mouse Lymphotactin/XCL1, Val22-Gly114. |
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Molecular Weight |
Approximately 10.1 kDa. |
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AA Sequence |
VGTEVLEESS CVNLQTQRLP VQKIKTYIIW EGAMRAVIFV TKRGLKICAD PEAKWVKAAI KTVDGRASTR KNMAETVPTG AQRSTSTAIT LTG |
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Tag |
None |
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Physical Appearance |
Sterile Filtered White lyophilized (freeze-dried) powder. |
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Purity |
> 97% by SDS-PAGE and HPLC analyses. |
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Biological Activity |
The ED50 as determined by a chemotaxis bioassay using human XCR1 transfected murine BaF3 cells is less than 100 ng/mL, corresponding to a specific activity of > 1.0 × 104 IU/mg. Fully biologically active when compared to standard. |
|
Endotoxin |
< 0.1 EU per 1μg of the protein by the LAL method. |
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Formulation |
Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.4. |
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Reconstitution |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1% BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20°C. Further dilutions should be made in appropriate buffered solutions. |
Shipping and Storage
The products are shipped with ice pack and can be stored at -20℃ to -80℃ for 1 year.
Recommend to aliquot the protein into smaller quantities when first used and avoid repeated freeze-thaw cycles.
Cautions
1. Avoid repeated freeze-thaw cycles.
2. For your safety and health, please wear lab coats and disposable gloves for operation.
3. For research use only!