SPAG9, HSS, SYD1, MAPK8IP4, C-Jun-amino-terminal kinase-interacting protein 4, JIP-4, Cancer/testis antigen 89, CT89, Human lung cancer oncogene 6 protein, HLC-6, JNK-associated leucine-zipper protein (JLP), Mitogen-activated protein kinase 8-interacting protein 4, Proliferation-inducing protein 6,