Cloning and expression of IBDV host-protecting immunogen.

摘要

A recombinant DNA molecule comprising a nucleotide sequence substantially corresponding to all or a portion of IBDV RNA, particularly the IBDV RNA segment of approximately 3400 b.p. In particular, a DNA molecule coding for all or a part of at least one structural protein of IBDV, for example, the 32 Kd and/or the 41/37 Kd structural proteins. Synthetic peptides or polypeptides, and fused polypeptides, prepared by expression of host cells containing these DNA molecules are also disclosed.