Figure 1From: Lack of EGFR mutations benefiting gefitinib treatment in adenocarcinoma of esophagogastric junctionThe variant from CAG to CAA at codon 787 in exon 20. The variant from CAG to CAA at codon 787 in exon 20 (arrows), which was a genomic variation of EGFR since it was found in both cancer tissue and white blood cells, and this was a synonymous mutation because CAA and CAG were encoding the same amino-acid of Glutamine (Q787Q).Back to article page