C-C motif chemokine 3/4 C-C motif chemokine 4 protein H400 T-cell activation protein 2 ACT-2 small-inducible cytokine A4 immune activation protein 2 HC21 G-26 T-lymphocyte-secreted protein MIP-1-beta(1-69) LAG1 A C-C motif chemokine 3/4 that is a translation product of the human CCL4 gene or a 1:1 ortholog thereof. lymphocyte activation gene 1 protein LAG-1 SIS-gamma ACT2 MIP1B macrophage inflammatory protein 1-beta MIP-1-beta CCL4 PAT 744 SCYA4