<unk>  is an autosomal recessive genetic disorder, linked to mutations (955 gly -> glu) in the COL11A2 gene (located on chromosomal position 6p21.3), which codes for the α2 strand of collagen type XI. 
It is a collagenopathy, types II and XI disorder.
Weissenbacher-Zweymüller syndrome
Cruveilhier-Baumgarten syndrome
Smith-Magenis syndrome
Smith-Lemli-Opitz syndrome
Abderhalden-Kaufmann-Lignac syndrome
Smith–Lemli–Opitz syndrome
Landau-Kleffner syndrome
Bardet-Biedl syndrome