Immunogen sequence: QDLIQWGADY FEALSRGETP PVRERSERVA LCNWAELTPE LLKIL Highest antigen sequence identity to the following orthologs: Mouse - 76%, Rat - 78%. ROPN1B belongs to the ropporin family and contains 1 RIIa domain. ROPN1B interacts with RHPN1 and