This family of proteins inhibits G-protein- and mitogen-activated protein kinase-mediated signal transduction [1-2].

1: Two human cDNAs, including a homolog of Arabidopsis FUS6 (COP11), suppress G-protein- and mitogen-activated protein kinase-mediated signal transduction in yeast and mammalian cells. Spain BH, Bowdish KS, Pacal AR, Staub SF, Koo D, Chang CY, Xie W, Colicelli J; Mol Cell Biol. 1996;16:6698-6706. PMID:8943324

2: The N-CoR-HDAC3 nuclear receptor corepressor complex inhibits the JNK pathway through the integral subunit GPS2. Zhang J, Kalkum M, Chait BT, Roeder RG; Mol Cell. 2002;9:611-623. PMID:11931768