CCL1
CCL1 is a small glycoprotein belonging to the CC chemokine family with a molecular weight of approximately 15-16 kDa, known as small inducible cytokine I-309 in humans and TCA-3 in mice. CCL1 is secreted by activated monocytes, macrophages, T lymphocytes and endothelial cells and is chemotactic for monocytes but not for neutrophils[1]. CCL1 can be activated by interaction with the cell surface chemokine receptor CCR8, which induces Ca2+ influx, stimulates transient increases in cytoplasmic free calcium concentration in monocytes, and inhibits apoptosis in thymocyte lines via the RAS/MAPK pathway. Among others, CCR8 is constitutively expressed in monocytes, macrophages, Th2 and regulatory T lymphocytes and is the sole receptor for the human CCL1 and for the viral chemokine, vCCL1 (viral macrophage inflammatory protein 1). CCR8 has been shown to be associated with phagocytic macrophages and activated microglia in MS lesions and is directly related to demyelinating activity[2]. CCL1 is involved in inflammatory processes through leukocyte recruitment and can play a key role in angiogenesis and other viral and neoplastic processes. A number of single nucleotide polymorphisms (SNPs) in the CCL1 gene have been associated with the progression of chronic obstructive pulmonary disease (COPD). In parallel, CCL1 plays a role in various CNS functions and diseases and may be associated with neuroinflammatory disorders[3].
- [1]. M D Miller, et al. The human cytokine I-309 is a monocyte chemoattractant. Proc Natl Acad Sci U S A. 1992 Apr 1;89(7):2950-4. [Content Brief]
- [2]. A Zingoni, et al. The chemokine receptor CCR8 is preferentially expressed in Th2 but not Th1 cells. J Immunol. 1998 Jul 15;161(2):547-51. [Content Brief]
- [3]. Gültekin Tamgüney, et al. Autocrine stimulation of rhadinovirus-transformed T cells by the chemokine CCL1/I-309. Oncogene. 2004 Nov 4;23(52):8475-85. [Content Brief]
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CCL1 Recombinant Proteins (7)
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Recombinant Protein Expression Service
- Codon Optimization
- Gene Synthesis
- Construction of Expression Vector
- Strain Screening
- Protein Expression
- Purification & QC
- Protein Delivery
- Formula: Human
- Molecular Weight: Sf9 insect cells
The EpCAM/TROP1 protein serves as an important homogeneous interacting molecule that promotes direct contact between intestinal epithelial cells (IEC) and intraepithelial lymphocytes (IEL) in the mucosal epithelium. This feature helps establish an immune barrier against mucosal infections. EpCAM/TROP1 Protein, Human (His-SUMO) is the recombinant human-derived EpCAM/TROP1 protein, expressed by E. coli , with N-6*His, N-SUMO labeled tag.
