TGF-beta Binding Proteins

TGF-beta binding proteins 1-4/Latent TGF-beta binding proteins 1-4 (LTBPs 1-4) are members of the LTBP/fibrillin family of proteins. They are characterized by the presence of multiple EGF-like repeats and a series of cysteine-rich repeats. Extracellularly, LTBPs form part of a large inactive TGF-beta complex where they serve to anchor a mature, dimeric TGF-beta/TGF-beta propeptide complex to the ECM.