MIP-1 bèta (CCL4)

Both MIP-1α and MIP-1β are structurally and functionally related CC chemokines. They participate in the host response to invading bacterial, viral, parasite and fungal pathogens by regulating the trafficking and activation state of selected subgroups of inflammatory cells e.g. macrophages, lymphocytes and NK cells. While both MIP-1α and MIP-1β exert similar effects on monocytes their effect on lymphocytes differ; with MIP-1α selectively attracting CD8+ lymphocytes and MIP-1β selectively attracting CD4+ lymphocytes. Additionally, MIP-1α and MIP-1β have also been shown to be potent chemoattractants for B cells, eosinophils and dendritic cells. Both human and murine MIP-1α and MIP-1β are active on human and murine hematopoietic cells. Recombinant rat MIP-1β is a 7.8 kDa protein containing 69 amino acid residues, including the four highly conserved cysteine residues present in CC chemokines.

Ccl4; Scya4; Mip1-b

116637

P50230

NP_446310

NM_053858

10q26

Rat

Human, Rat

APIGSDPPTS CCFSYTSRKI HRNFVMDYYE TSSLCSQPAV VFLTKKGRQI CADPSEPWVN EYVNDLELN

< 0.1 ng/µg of protein (< 1EU/µg)

> 98% by SDS-PAGE & HPLC analyses

Determined by its ability to chemoattract human monocytes using a concentration range of 0.01-1.0 µg/ml.

69

Lyophilized

7.8 kDa

E. coli