Immunoglobulin superfamily member 23 XRGVIQSELN YSVILQWVVT MDPEPVLSWT FSGVPCGMGE KLFIRRLSCE QLGTYMCIAT NSKKQLVSEP VTISLPKPIM QPTEAEPMEP DPTLSLSGGS AIGLLAAGIL GAGALIAGMC FIIIQSLRTD RQRIGICS