Angelman Syndrome


 * This syndrome is caused by the lost of function of gene UBE3A - just maternal copy of this gene is functional. Syndrome is result of the lost of maternal chromozome 15 segment. This genetic disorder is connected especially with the nervous system. Childrens are affected in their early age.
 * Typical symptoms: developmetal delay, speech problems, ataxia, epilepsy or microcephaly.
 * Pacients are sometimes called "happy puppets" because of their behavior. They frequent smile, laught and have flapping movements.
 * Incidence of Angelman syndrome is 1 in 12 000 - 20 000 people worldwide.

Related articles

 * Genomic Imprinting
 * Gene
 * Allele
 * Chromozome