Duplicated domain in C-terminus of type 4 collagens. Mutations in alpha-5 collagen IV are associated with X-linked Alport syndrome.

1: The Goodpasture antigen: common epitopes in the globular domains of collagen IV. Matsukura H, Butkowski RJ, Fish AJ; Nephron 1993;64:532-539. PMID:7690113

2: cDNA clones coding for the pro-alpha1(IV) chain of human type IV procollagen reveal an unusual homology of amino acid sequences in two halves of the carboxyl-terminal domain. Pihlajaniemi T, Tryggvason K, Myers JC, Kurkinen M, Lebo R, Cheung MC, Prockop DJ, Boyd CD; J Biol Chem 1985;260:7681-7687. PMID:2581969

3: Substitution of A1498D in noncollagen domain of a5(IV) collagen chain associated with adult-onset X-linked Alport syndrome. Tverskaya S, Bobrynina V, Tsalykova F, Ignatova M, Krasnopolskaya X, Evgrafov O; Hum Mutat 1996;7:149-150. PMID:8829632