Immunogen sequence: KWETKNCSVS STNANDITQS LTGKGNDSEE EMRFQEVFME HMSNMEKRIQ HILDMEANLM DTEHFQNFSM TTDQRFNDIL LQLSTLFSSV QGHGNAIDEI SKSLISLNTT LLDLQLNIEN L. CD204 gene encodes the class A macrophage scavenger receptors, which include three different types