Case Report

ETV6: A Candidate Gene for Predisposition to “Blend Pedigrees”? A Case Report from the NEXT-Famly Clinical Trial

Table 3

Main hotspot mutations in the ETV6 gene and their impact on the protein.

MutationDomainEffect

P214LCentral regulatory domain(i) Repression of DNA binding by the ETS domain
(ii) Defective proplatelet formation and megakaryocyte maturation
(iii) Alteration of proplatelet spreading
(iv) Down regulation of several cytoskeletal proteins
(v) ETV6 delocalization

N385VfsETS(i) Reduction in repressive activity
(ii) Targeted proteins downregulation

Y401NETS(i) Impaired interaction with corepressor
(ii) Defective proplatelet formation and megakaryocyte maturation

R369W/R369QETS(i) Reduction in repressive activity
(ii) Targeted protein downregulation
(iii) ETV6 delocalization

ETS = highly conserved C-teminal DNA-binding domain.