Figure 1: Latent TGF-β complex. TGF-β is associated with a latency-associated peptide (LAP) and forms a small latent complex. To the small latent complex, latent TGF-β binding protein (LTBP) is linked, forming a large latent complex. LTBP has an extracellular matrix (ECM)-binding region to transport latent TGF-β complex into the ECM.