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Distribution of PHOX2B exon 3 variants in Italian IALTE and SIDS/SUID patients. Graphical representation of the common variants in PHOX2B exon 3 identified in ALTE and SIDS/SUID cases. Black line indicates the position of the synonymous variant c.552C>T (p.184Ser=) and c*161G>A, in linkage disequilibrium with c.552C>T; the light gray box represents the 7 polyAla contraction within the 20 polyAla region, shown in dark gray. The TGA stop codon indicates the end of the coding region.
