Anti-Macrophage Inflammatory Protein 1 beta/CCL4 Antibody Picoband®

Chemokine (C-C motif) ligand 4, also known as CCL4, is a protein which in human is encoded by the CCL4 gene. By analysis of somatic cell hybrids and by in situ hybridization, the CCL4 gene was assigned to 17q21-q23. It is a CC chemokine with specificity for CCR5 receptors. It is a chemoattractant for natural killer cells, monocytes and a variety of other immune cells. CCL4 is a major HIV-suppressive factor produced by CD8+ T cells. Performing-low memory CD8+ T cells that normally synthesize CCL4. Based on functional analysis of CCL4, one or more additional beta chemokine receptors that transduce CCL4 signals must also exist. MIP-1alpha and CCL4 have been shown to lack affinity for the erythrocyte surface chemokine receptor/Duffy antigen that binds many alpha as well as beta chemokines (11, 14) .

E.coli-derived rat CCL4 recombinant protein (Position: A24-N92) . Rat CCL4 shares 80% and 86% amino acid (aa) sequences identity with human and mouse CCL4, respectively.

Expression is increased in differentiated thyroid carcinomas compared to normal thyroid tissue and anaplastic thyroid tumors where expression is low or undetectable. Expression is found in thyrocytes but not in stromal cells (at protein level) . .

1. Irving SG, Zipfel PF, Balke J, McBride OW, Morton CC, Burd PR, Siebenlist U, Kelly K (June 1990) . Nucleic Acids Res. 18 (11) : 3261–70. 2. Bystry RS, Aluvihare V, Welch KA, Kallikourdis M, Betz AG (December 2001) . B cells and professional APCs recruit regulatory T cells via CCL4. Nat. Immunol. 2 (12) : 1126–32. 3. Cocchi F, DeVico AL, Garzino-Demo A, Arya SK, Gallo RC, Lusso P (December 1995) . Science (journal) 270 (5243) : 1811–5. 4. Kamin-Lewis R, Abdelwahab SF, Trang C, Baker A, DeVico AL, Gallo RC, Lewis GK (July 2001) .

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.