Latent TGF beta 1/TGFB1 Protein is a large extracellular matrix protein and an associated ligand of fibrillinmicrofibrils. Latent TGF beta 1/TGFB1 Protein, Cynomolgus (C33S, HEK293, His) is a recombinant protein (L30-S390, C33S) produced by HEK293 cells