Catalog number: 209 - 101-M272
Product Category: Business & Industrial > Science & Laboratory
Size: 100 µg
101-M185
CCL-28 or MEC is a secreted CC chemokine expressed primarily by epithelial cells of the bronchioles, salivary gland, mammary gland and colon. MEC signals through the CCR10 receptor and chemoattracts resting CD4, CD8 T-cells and eosinophils. MEC contains six cysteines including the four highly conserved cysteine residues present in CC chemokines. Recombinant human MEC is a 12.3 kDa protein containing 108 amino acid residues.
101-M272
CCL-28 or MEC is a secreted CC chemokine expressed primarily by epithelial cells of the bronchioles, salivary gland, mammary gland and colon. MEC signals through the CCR10 receptor and chemoattracts resting CD4, CD8 T-cells and eosinophils. MEC contains six cysteines including the four highly conserved cysteine residues present in CC chemokines. Recombinant human MEC is a 12.3 kDa protein containing 108 amino acid residues.
103-M332
Mouse CCL28 (CC chemokine ligand 28) is a novel CC chemokine cloned from a Rag1 mouse kidney cDNA library. Mouse CCL28 cDNA encodes a 130 amino acid (aa) precursor protein with a 22 aa signal peptide and a 108 aa mature protein. Mature human and mouse CCL28 share 83% aa identity. Among CC chemokines, CCL28 shares the most homology with CCL27/CTACK. Mouse CCL28 is produced by epithelial cells. Based on Northern blot analysis, it is mainly expressed in testes, kidney and brain. The receptor for CCL28 has been identified as the CCR10, which is also the receptor for CCL27/CTACK.
103-M327
6Ckine is a novel CC chemokine discovered independently by three groups from the EST database. 6Ckine, also named SLC (secondary lymphoidtissue chemokine), CCL21 and Exodus2, shows 21-33% identity to other CC chemokines. 6Ckine contains the four conserved cysteines characteristic of β chemokines plus two additional cysteines in its unusually long carboxy-lterminal domain. Human 6Ckine cDNA encodes a 134 amino acid highly basic precursor protein with a 23 amino acid residue signal peptide that is cleaved to form the predicted 111 amino acid residue mature protein. Mouse 6Ckine cDNA encodes a 133 amino acid residue protein with a 23 residue signal peptide that is cleaved to generate the 110 residue mature protein. Human and mouse 6Ckine share 86% amino acid sequence identity. 6Ckine is constitutively expressed at high levels in lymphoid tissues such as lymph nodes, spleen and appendix. In mouse, high levels of 6Ckine mRNA are also detected in the lung. Unlike most CC chemokines, 6Ckine is not chemotactic for monocytes. Recombinant mouse 6Ckine is chemotactic in vitro for thymocytes and activated T cells. Recombinant human 6Ckine has been shown to be chemotactic for some human T cell lines, resting PBL, and cultured T cells expanded with PHA and IL2. 6Ckine has also been reported to inhibit hemopoietic progenitor colony formation in a dosedependent manner. 6Ckine acts via the CC receptor CCR7 on T cells and B cells.
103-M328
CCL22, also known as ABCD1 and MDC (macrophage-derived chemokine), is a CC chemokine cloned from activated mouse B cells. Mouse CCL22 cDNA encodes a precursor protein of 92 amino acid (aa) residues with a 24 aa residue predicted signal peptide that is cleaved to yield a 68 aa residue mature 7.8 kDa protein. At the amino acid sequence level, mouse and human CCL22 share 64% identity and 83% similarity. The genomic organization of the mouse and human CCL22 genes are very similar, exhibiting sequence identity at the intron-exon boundaries. Mouse CCL22 is expressed at high levels in dendritic cells and activated B lymphocytes. Low levels of mouse CCL22 mRNA are also detectable in lung, unstimulated spleen cells, lymph node cells and in thymocytes. CCL22 is a functional ligand for the CC chemokine receptor 4. Recombinant or chemically synthesized mature mouse CCL22 has been shown to induce chemotaxis or Ca2+ mobilization in activated mouse and human T cells.
103-M329
Eotaxin2, also named myeloid progenitor inhibitory factor (MPIF2), is a member of the CC chemokine subfamily and is designated CCL24. Eotaxin2 is constitutively expressed in the jejunum and spleen. It can also be induced in the lung by allergen challenge and IL4. LPS and IL4 also differentially regulate the expression of Eotaxin2 in monocytes and macrophages. Mouse Eotaxin2 cDNA encodes a 119 amino acid (aa) precursor protein that shares approximately 58% aa sequence identity with human Eotaxin2. Functionally, Eotaxin2is most closely related to CCL11/Eotaxin and CCL26/Eotaxin3. The three proteins share low sequence homology but have been shown to be potent eosinophil chemoattractants that bind and activate the chemokine receptor CCR3, a receptor that is highly expressed in eosinophils. Eotaxin2 also has the ability to suppress myeloid cell proliferation, a biological function not shared by Eotaxin.