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Sumoylation of the SOX10 transcription factor regulates its transcriptional activity
Author(s) -
Girard Mathilde,
Goossens Michel
Publication year - 2006
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2006.02.011
Subject(s) - sox10 , sumo protein , transcription factor , microphthalmia associated transcription factor , pax3 , neural crest , irf4 , promoter , biology , microbiology and biotechnology , activating transcription factor , transcription (linguistics) , genetics , gene , gene expression , ubiquitin , linguistics , philosophy
SRY‐related HMG box‐containing factor 10 (SOX10) is a transcription factor essential for neural crest development and differentiation, and involved in Waardenburg syndrome type IV and PCWH syndrome. Here we show that the SOX10 protein is modified by sumoylation, a highly dynamic post‐translational modification that affects stability, activity and localisation of some specific transcription factors. Three sumoylation consensus sites were found in the SOX10 protein, all of them are functional and modulate SOX10 activity. Sumoylation does not affect SOX10 sub‐cellular localisation, but represses its transcriptional activity on two of its target genes, GJB1 and MITF , and modulates its synergy with its cofactors EGR2 and PAX3 on these promoters.