Human FBN1 (https://www.ncbi.nlm.nih.gov/gene/2200, updated on June 11, 2021) encodes a ~320 kDa extracellular matrix (ECM) protein fibrillin-1 that is widely expressed throughout the body and constitutes the backbone of microfibrils in the ECM (Jensen & Handford, 2016;Schrenk et al., 2018;Zigrino & Sengle, 2019). It contains three cysteine-rich repeating motifs (Jensen & Handford, 2016;Schrenk et al., 2018), which are epidermal growth factor (EGF) motifs and latent transformation growth factor-β1 binding protein (LTBP or TB) motifs and Fib motifs. The Fib motif is a unique hybrid motif of FBN1, which is formed by the fusion of EGF and LTBP