Immunogen sequence: MQRSPPGYGA QDDPPARRDC AWAPGHGAAA DTRGLAAGPA ALAAPAAPAS PPSPQRSPPR SPEPGRYGLS PAGRGERQAA DESRIRRPMN AFMVWAKDER. SOX18 a member of the SOX (SRY-related HMG-box) family of transcription factors involved in the regulation of embryonic dev