Article
A loss-of-function cysteine mutant in fibulin-3 (EFEMP1) forms aberrant extracellular disulfide-linked homodimers and alters extracellular matrix composition.
Human mutation - 1 Dec 2022
Woodard DaNae R, Daniel Steffi, Nakahara Emi, Abbas Ali, DiCesare Sophia M, Collier Gracen E, Hulleman John D
Abstract excerpt
Fibulin-3 (F3 or EFEMP1) is a disulfide-rich, secreted glycoprotein necessary for maintaining extracellular matrix (ECM) and connective tissue integrity. Three studies have identified distinct autosomal recessive F3 mutations in individuals with Marfan Syndrome-like phenotypes. Herein, we characterize how one of these mutations, c.163T>C; p.Cys55Arg (C55R), disrupts F3 secretion, quaternary structure, and...
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