passages.id: split_4_test_3583_passage
passages.type: progene_text
passages.text: The receptors associated with recognition of HLA-C allospecificities are the two - domain Ig - like molecules , p50 and p58 proteins , with highly homologous extracellular domains but differing in that they have either an activating or inhibitory function , respectively , depending on the transmembrane domain and cytoplasmic tails that they possess .