Mutations in the genes encoding its main chains, COL6A1, COL6A2 and COL6A3, are responsible for the spectrum of congenital muscular disorders, namely Ullrich congenital muscular dystrophy (UCMD), Bethlem myopathy (BM), and myosclerosis myopathy (MM), showing a variable combination of muscle wasting and weakness, joint contractures, distal laxity, and respiratory compromise [6,7,8]. The gene discussed is COL6A1; the disease is Ullrich congenital muscular dystrophy.