| A form of congenital disorders of N-linked glycosylation with characteristics of distal arthrogryposis (mild flexion contractures of the fingers, deviation of the distal phalanges, swan-neck deformity), retro-micrognathia, general muscle hypotonia, delayed psychomotor development, autism spectrum disorder (speech delay, abnormal use of speech, difficulties in initiating, understanding and maintaining social interaction, limited non-verbal communication), seizures, microcephaly and mild to moderate intellectual disability that becomes apparent with age. The disease is caused by mutations in the gene SLC35A3 (1p21). |
