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The UBE3A gene encodes the E6 - AP ubiquitin - protein ligase and has recently been shown to be mutated in Angelman syndrome patients who lack 15q11 - q13 deletions or chromosome 15 paternal uniparental disomy .
 Disease: Angelman syndrome; Disease: uniparental disomy
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: Angelman syndrome; Disease: uniparental disomy