Among TAFA ligands, TAFA4, also called FAM19A4 is a secreted chemokine-like protein of 12 kDa weight, which has been relatively well studied, with research implicating its importance for the detection of cervical cancer (Delfini et al., 2013; Wang et al., 2015; Luttmer et al., 2016b). The gene discussed is TAFA4; the disease is cervical carcinoma.