Catalog Products » Recombinant Proteins » I-309/CCL1, Human (CHO-expressed)

I-309/CCL1, Human(CHO-expressed)

Recombinant Human I-309/CCL1 produced in CHO cells is a polypeptide chain containing 73 amino acids. A fully biologically active molecule, rhI-309/CCL1 has a molecular mass of 15kDa analyzed by reducing SDS-PAGE and is obtained by chromatographic techniques at GenScript.
Z03269
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Product Introduction
Species Human
Protein Construction
CCL1 (Lys24-Lys96)
Accession # P22362-1
Purity > 98% as analyzed by SDS-PAGE
Endotoxin Level < 0.2 EU/μg of protein by gel clotting method
Biological Activity The EC50 value of human I-309/CCL1 on Ca2+ mobilization assay in CHO-K1/ G15/hCCR8 cells (human G15 and human CCR8 stably expressed in CHO-K1 cells) is less than 1.0 μg/ml.
Expression System CHO
Apparent Molecular Weight ~15 kDa, on SDS-PAGE under reducing conditions.
Formulation Lyophilized after extensive dialysis against PBS.
Reconstitution It is recommended that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute the lyophilized powder in ddH₂O or PBS up to 100 μg/ml.
Storage & Stability Upon receiving, this product remains stable for up to 6 months at lower than -70°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. For long term storage it is recommended that a carrier protein (example 0.1% BSA) be added. Avoid repeated freeze-thaw cycles.

Background
Target Background Chemokine (C-C motif) ligand 1 (CCL1), also known as I-309, is a small glycoprotein secreted by activated T cells that belongs to the family of chemokines. Human CCL1 has been assumed to be a homologue of mouse TCA3. While the two proteins share only approximately 42% amino acid sequence identity, both chemokines contain an extra pair of cysteine residues not found in most other chemokines. CCL1 attracts monocytes, NK cells, immature B cells and dendritic cells by interacting with the cell surface chemokine receptor CCR8. This chemokine resides in a large cluster of CC chemokines on human chromosome 17.
Synonyms CCL-1; I-309; TCA-3

For laboratory research use only. Direct human use, including taking orally and injection and clinical use are forbidden.