Immunogen sequence: VLLTKGEIRC YCDAAHCVAT GYMCKSELSA CFSRLLDPQN SNSPLTHGCL DSLASTTDIC QAKQARNHSG TTIPTLECCH EDMCNYRGLH DVLSPPRGEA SGQGNRYQHD GSRNLITKVQ ELTSSKELWF RA. BAMBI (BMP and activin membrane-bound inhibitor homolog, NMA) is a membrane spanning gl