The invention relates to large latent complexes of TGF-.beta.2 and TGF-.beta.3, and methods for isolating these. The complex consists of a dimerized form of TGF-.beta.2 or TGF-.beta.3, the appropriate latency associated peptide, and the latent TGF-.beta.1 binding protein, referred to as LTBP. Also described...http://www.google.ca/patents/US5346993?utm_source=gb-gplus-sharePatent US5346993 - Isolated, large latent complexes of TGF-.beta.2 and TGF-.beta.3, and new binding protein for latent form TGF-.beta.1, TGF-.beta.2 and TGF-.beta.3 LTBP-2
