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Updated: Aug 11, 2026

Aip1p Dynamics Are Altered by the R256H Mutation in Actin
Published on: July 30, 2014
Two novel mutations of the AIRE protein affecting its homodimerization properties
A Meloni1, E Fiorillo, D Corda
1Istituto di Neurogenetica e Neurofarmacologia, National Research Council, Cagliari, Italy.
Abstract:
We report two novel mutations, c.230T>C (p.F77S) and c.64_69del (p.V22_D23del) within the HSR domain of the AIRE protein in two patients of Italian descent affected by APECED. Both mutations were found in the compound heterozygous state respectively with c.994+5G>T and c.232T>A (p.W78R). With the two-hybrid assay in the yeast system we found that constructs containing the two mutations fail to interact with the wild-type protein. These findings indicate that both mutations negatively affected the homodimerization properties of the AIRE protein, thereby leading to a defective function.
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