"Most people with Williams syndrome lack one copy each of 25 consecutive genes on chromosome 7. The girl in Korenberg’s study is only missing 24: she carries two functional copies of GTF2I.
Unlike most people with Williams syndrome, she also does not approach strangers and is not overly gregarious — suggesting that GTF2I is at least partly involved in social behavior.
“She’s the only one in the world who’s got that exact deletion, with all of numbers 1 to 24 missing, so she is the only one where we can look at all of the effects of that gene,” says Korenberg."
Friday, August 7, 2009
Gene ties trust hormone to Williams syndrome and autism « Virginia Hughes: