Figure 1From: Can mutations in ELA2, neutrophil elastase expression or differential cell toxicity explain sulphasalazine-induced agranulocytosis? Outline of reported mutations in ELA2 exon-sequences in patients with severe congenital neutropenia and cyclic neutropenia Outline of mutations previously reported [2, 4] in ELA2 exons 1–5. The SNP S173 [6] is indicated as an extended arrow and represents base number 4890 in accession number Y00477 and is a base C→A substitution.Back to article page